55si2mn 60si2mn c60 high strength tool steel plates

55si2mn 60si2mn c60 high strength tool steel plates

60Si2Mn Spring Steel Wire Bar WixSteel Industrial60Si2Mn is widely used silico-manganese spring steel with slightly higher strength, elasticity and hardenability is better than 55Si2Mn. 60Si2Mn spring steel is used to produce flat springs with larger loads or coil springs with a wire diameter of less than 30mm, and is also suitable for making hea

3 mins Steel 60si2mn Round Bar, Plate, Sheet, Rod Suppliers - Buy 55si2mn 60si2mn c60 high strength tool steel plates

Slowly heated to 740-770 and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The 60SI2MN tool steel will get MAX 250 HB Brinell hardness. 2 Hardening of 60SI2MN Spring Steel. 60SI2MN steels should be heated uniformly to 830-860°C (1526- 1580°F) until completely heated through.Brand Henan Friend Metal Products Co. Offer Count 1 60Si2Mn Spring Steel Metal Material-GB/T 1222 Standard 55si2mn 60si2mn c60 high strength tool steel platesOtai Special Steel have more 16 years experience in GB 60SI2MN Spring Steel round bar, flat bar., rod bar, wire and plate supply. GB 60SI2MN Steel is a high quality Alloy Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Quenched Tempered Hardness is 28-34 HRc. 60SI2MN steel Annealing delivery hardenss less than 250HB.

Brand Dongguan gshun Mold Steel Co. Offer Count 1 Images of 55si2mn 60Si2Mn C60 High Strength Tool Steel Pla

havens-metalChina Customized 60si2mn Spring Steel With Polished Finish Plate Manufacturers - Wholesale 55si2mn 60si2mn c60 high strength tool steel platesngpmachinesSk85 Ck75 Ck85 65mn High Strength Spring Steel Platesteel60Si2Mn Steel Round BarngpmachinesSk85 Ck75 Ck85 65mn High Strength Spring Steel Plate images 60Si2Mn Alloy Spring Steel Manufacturer China - 60Si2Mn density of 7.85g / cm3.60Si2Mn is widely used silicon manganese spring steel, strength, elasticity and hardenability than 55Si2Mn slightly higher. Suitable for railway vehicles, automobile tractor industry to produce a larger load of flat springs or wire diameter of 30mm below the coil spring. Choose the high quality spring steel wire 55si2mn 60si2mn c60 high strength tool steel plates60Si2Mn Spring Steel Wire Bar WixSteel Industrial60Si2Mn is widely used silico-manganese spring steel with slightly higher strength, elasticity and hardenability is better than 55Si2Mn. 60Si2Mn spring steel is used to produce flat springs with larger loads or coil springs with a wire diameter of less than 30mm, and is also suitable for making heat-resistant springs in non-corrosive media with a working temperature of 250 or less, and to 55si2mn 60si2mn c60 high strength tool steel plates

hastelloy steel bar - china hastelloy steel bar 55si2mn 60si2mn c60 high strength tool steel plates

steel bar 1.specification Dia 6-40mm if special specification need to order . 2. at competitive price 51CrV4\50CrVA\SUP10 Dia of steel 55si2mn 60si2mn c60 high strength tool steel plates :2008 Quality Managements System Certificate the specification of round bar 6-100mm rolled metal,100-300mm forging metal.If special 55si2mn 60si2mn c60 high strength tool steel plates goods ,The delivery of round bar is within 15 days ( Excluding the transport time )baosensteel special steel company do 55si2mn 60si2mn c60 high strength tool steel plates hastelloy steel bar

c70 carbon steel plate, c70 carbon steel plate Suppliers 55si2mn 60si2mn c60 high strength tool steel plates

1095 and 15n20 carbon steel plate. 1,734 c70 carbon steel plate products are offered for sale by suppliers on , of which steel sheets accounts for 5%, stainless steel sheets accounts for 2%. A wide variety of c70 carbon steel plate options are available to you, such as aisi, din, and astm. You can also choose from bending, cutting 55si2mn 60si2mn c60 high strength tool steel plates What kind of steel is a C60 plate?What kind of steel is a C60 plate?C60 steel plate is one mainly of high carbon steel, EN 10083 C60 steel plate is one of the higher carbon content (0.60%) steels.It is more difficult to fabricate than the lower carbon grades. we also can supply C45K, C50, C55, C55K ,please contact us if you need.C60 - BEBON steel

What kind of steel is 60si2mn spring steel?What kind of steel is 60si2mn spring steel?GB 60SI2MN Steel is a high quality Alloy Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Quenched Tempered Hardness is 28-34 HRc. 60SI2MN steel Annealing delivery hardenss less than 250HB.60Si2Mn Spring Steel Metal Material-GB/T 1222 Standard 55si2mn 60si2mn c60 high strength tool steel plates What is the hardness of 60si2mn tool steel?What is the hardness of 60si2mn tool steel?The 60SI2MN tool steel will get MAX 250 HB Brinell hardness. 60SI2MN steels should be heated uniformly to 830-860°C (1526-1580°F) until completely heated through. About 30 min per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil. Get Hardness 61 Min.60Si2Mn Spring Steel Metal Material-GB/T 1222 Standard 55si2mn 60si2mn c60 high strength tool steel plates

What is the ASTM A572 grade 50, 60, 65 steel plates?What is the ASTM A572 grade 50, 60, 65 steel plates?ASTM A572 Grade 50, 60 Steel Plate Sepcification ASTM A572 standard is for high strength low alloy (HSLA) structural steel plate integrated with columbium-vanadium, the specification covers 5 grades of HSLA steel profiles, plates, sheet piling, and bars. Applications of A572 Steel Plates:ASTM A572 Grade 50, 55, 60, 65 Steel Plates Specification 55si2mn 60si2mn c60 high strength tool steel plates TOOL STEEL - MATERIAL SELECTION GUIDE

HSS with very high toughness and strength and wear resistance at high temperatures for warm and precision forgings. Higher toughness than H13 for hot forging and Al extrusion Processing heavy metal alloys. Very high strength hot working steels. Hot forging tools with high toughness Extrmely high temperature resistant for mg

Structural Plate Supplier - Structural A36 A572-50 Steel 55si2mn 60si2mn c60 high strength tool steel plates

High-strength, quenched and tempered all steel plate, primarily used for bridged and other structural applications. Produced in heat treat condition in grades A, B, E, F, H, P, Q, and S (up to 6). Tensile ranges from 100-130 KSI and Yield has a minimum of 100 KSI (up to 2-1/2) and 90 KSI (over 2-1/2). Steel Plate, Floor Plate Sheet Products100XF Temper Leveled Plate 100XF Temper Leveled Plate 100XF steel plate has been developed for applications where increased strength-to-weight ratios are required. It has physical properties similar to those of ASTM A514 even though its manufacturing process does not require heat treatment. 100XF is available as temper leveled, cut-to-length plate.

Steel Plate Grades - Continental Steel Tube Company

Plates over 1 1/2 have carbon increasing to (0.20-0.33), this is a killed steel that provides the best combination of strength, weldability, and structural soundness. MEDIUM CARBON PLATE STEEL. Medium Carbon Plate Steel in the (.40-.50) carbon range is silicon killed and higher carbon for improved strength. Steel Plate - Carbon Steel Plate - RyerSteel plate is used for a variety of applications requiring durability and strength. Different alloys offer various levels of machinability, weldability, strength and corrosion resistance. Our stock includes a range of sizes and grades that can be difficult to find from a single supplier, including A36 /SA36, A572 Grade 50, A516 Grade 70, A514 55si2mn 60si2mn c60 high strength tool steel plates

Spring Steels GB GB-60Si2Mn Steel Database Query Result 55si2mn 60si2mn c60 high strength tool steel plates

Along with steel bars, steel plates and steel tubes supply, steel cutting, drilling, machining and heat treatment services are also provided. JFS Steel has been offering customers special steel materials such as GB-60Si2Mn Spring Steels and precision steel machining services since 2006. Speedy Metals - Steel Plate - Grade 50Steel mills produce channel and heavy beams with Grade 50. It is commonly used in structural applications, heavy construction equipment, building structures, heavy duty anchoring systems, truck frames, poles, liners, conveyors, boom sections, structural steel shapes, and applications that require high strength per weight ratio. Grade Grade 50

SIQUAL 0601 Steel

1112 steel which is considered 100% machinable. Corrosion Resistance This steel is not corrosion resistant. it will rust unless protected. Welding SIQUAL 0601 may be welded by all of the conventional methods. However both pre-heat and post-heat should be used when welding by an approved procedure. Pre-heat at 260 to 320oC and post-heat at 650 55si2mn 60si2mn c60 high strength tool steel plates SA 516 Steel Plates Grade 60, 65 70 - American Alloy SteelWe produce fine grain steel plates (SA 516) for boilers and PVQ applications in Gr 60, 65 70. Contact us to discuss chemical and tensile requirements.

M2 Steel M2 Tool Steel S600 Steel - High Speed Steel

M2 high-speed steel is by far the most popular high-speed steel replacing T1 in most applications because of its superior properties such as its bending strength, toughness and thermo-plasticityall of which are higher than T1 by 50%. Other Known Names HS 6-5-2, 1.3343, S600 Steel, E M2, REX M2 ®, SKH 51, P6M5, 6-6, M2 Tool Steel. Hot Rolled Hot forged High Speed 55si2mn 60si2mn c60 high strength tool steel plates - Hot Work Tool SteelHigh quality Hot Rolled Hot forged High Speed Steel Bar SKH2/1.3355/T1 for cutting tools from China, China's leading high speed steel product, with strict quality control cold work tool steel factories, producing high quality cold work tool steel products.

High Strength Steel Plate Supplier - A572-50 Steel Plate 55si2mn 60si2mn c60 high strength tool steel plates

As a high strength steel plate supplier, North Shore Steel provides steel plate in a higher strength material for construction, bridge, and heavy equipment applications. A572-50 steel plate (Minimum Yield 50 KSI) 1/4" thick up to 4 thick. High Strength Low Alloy Steel - Heat Treated AR 360 ABRASion ReSiStinG SteeL PLAteS color Marking Brown Abrasion Resisting Steel is a medium-carbon, low-alloy steel that has been heat treated by quenching and tempering to develop high abrasion and impact resistance and high yield strength. Resistance to wear and abrasion is to a large degree a function of carbon content and hardness.

GB 60SI2MN steel stockholders and China suppliers. Otai 55si2mn 60si2mn c60 high strength tool steel plates

GB 60SI2MN steel stockholders and China suppliers. Otai Special Steel have more 16 years experience in GB 60SI2MN Spring Steel round bar, flat bar., rod bar, wire and plate supply. GB 60SI2MN Steel is a high quality Alloy Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Quenched GB 60SI2MN Spring steel stockholders and China suppliersGB 60SI2MN Spring steel stockholders and China suppliers We have more 18 years experience in GB 60SI2MN Spring Steel round bar, flat bar, rod bar, wire and plate supply. GB 60SI2MN Steel is a high quality Alloy Spring Steel, It belong to the high quality high carbon alloy Spring Steel.

Equivalent Grades ALLOY STEEL

CARBON STEEL Internal Standard Equivalent Grades 55si2mn 60si2mn c60 high strength tool steel plates HIGH CARBON STEEL Internal Standard Equivalent Grades EN SAE/AISI JIS*** PC77 - 1075 SWRH77B 55si2mn 60si2mn c60 high strength tool steel plates 1060 1.0601 C60 080A62 43D CC55 C60 60 1055 S55C 1.1203 Ck55 070M55 XC55 C50 C55K 55 1060 S58C 1.1221 Ck60 080A62 43D XC60 C60 1678 60Mn 55si2mn 60si2mn c60 high strength tool steel plates EN 10083 C60 steel plateC60 steel plate, EN 10083 C60 steel plate, under EN 10083 standard, we can regard C60 steel plate as high carbon steel . C60 steel plate is one mainly of high carbon steel, EN 10083 C60 steel plate is one of the higher carbon content (0.60%) steels.It is more difficult to fabricate than the lower carbon grades. C60 EN 10083-2 Number:1.0601 55si2mn 60si2mn c60 high strength tool steel plates

Comparing Steel Plate Grades

Steel plate used in construction must meet certain criteria such as high strength, formability, ability to withstand subzero temperatures and weldability. A283 This grade is the standard specification for low and intermediate tensile strength carbon steel plates. China Structural Steel and Alloy Steel - steel-gradesGBT 60Si2Mn Steel Physical Properties by Longhai special steel - China steel suppliers E-mail [email protected] 55si2mn 60si2mn c60 high strength tool steel plates Steel,Tool steel,Carbon steel,Alloy steel,Mould steel,Ti Alloy,High 55si2mn 60si2mn c60 high strength tool steel plates Round bar, Tube/Pipe, Steel plate, Sheet, Coil, Flat bar, Cold rolling, Steel wire, Steel strip. Technological properties of grade 60Si2Mn.

China DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round

China DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round Bar, Find details about China Steel Round Bar, Steel Bar from DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round Bar China DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round China DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round Bar, Find details about China Steel Round Bar, Steel Bar from DC53 D2 Cr12MOV Cr8Mo2SiV L3 Mold Steel Round Bar

China Cold Drawn Black Finish 1045 1020 Ck45 C45 S45c 55si2mn 60si2mn c60 high strength tool steel plates

China Cold Drawn Black Finish 1045 1020 Ck45 C45 S45c Ss400 Carbon Steel Round Bar, Find details about China Carbon Steel Round Bar, 1045 Steel Round Bar from Cold Drawn Black Finish 1045 1020 Ck45 C45 S45c Ss400 Carbon Steel Round Bar Cast Aluminum Tool Jig Plate Midwest Steel AluminumATP 5 has a tensile strength of 41KSI a Hardness of 70HB and a Yield Strength of 18 KSI. Cast Tool Jig Plate ATP 5 is typically stocked in 48.5'' x 144.5'', 60.5'' x 144.5'' and 72.5'' x 144.5'', domestically partnered with Vista Metals out of Fontana CA, our Vista Metals ATP-5 cast aluminum plate can be produced in custom widths and 55si2mn 60si2mn c60 high strength tool steel plates

C60 Steel, Datasheet, Properties, Cross-Reference Table 55si2mn 60si2mn c60 high strength tool steel plates

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n 55si2mn 60si2mn c60 high strength tool steel plates C60 Steel - Special SteelStep Shaft C60 Tube C60 Pie-shaped C60 Ring C60 Module Large valves of the main C60 Other Profiled forgings C60 . Special Steel classification:. Stainless steel, Hi-Steel HSLA-80, Mould steel, Heat resistant steel, Tool steel, Ball bearing steel,Spring steel, Alloy steel, Construction steel, Die steel, High-speed steel, angles, channels, H steel, I-beams, welded pipes, seamless tubes,

C60 / 1.0601 - SteelNumber - Chemical composition 55si2mn 60si2mn c60 high strength tool steel plates

Non-alloy quality steel Chemical composition of steel C60 (1.0601), Standards of steel C60 (1.0601) Mechanical Properties of steel C60 (1.0601) Equivalent grades of steel C60 (1.0601) steel C60 (1.0601) Tensile Strength, Elongation, Proof strength , Hardness C60 - BEBON steel - steel plates - BEBON INTERNATIONALC60 steel plate, EN 10083 C60 steel plate, under EN 10083 standard, we can regard C60 steel plate as high carbon steel.. C60 steel plate is one mainly of high carbon steel,EN 10083 C60 steel plate is one of the higher carbon content (0.60%) steels.It is more difficult to

BS4360 55C|55C STEEL|55C STEEL PLATE__Steel Supplier

Carbon steel plate, mainly used for the production of various types of steel rivet, steel bolt, steel weld and other structural components. Available size Thickness 6mm--200mm. Width 900mm--3000mm. Length 3000mm to 18000mm. HDPE PIPE is specialized in supplying steel plate in 55C steel plate from stock or directly from the mill to customer 55si2mn 60si2mn c60 high strength tool steel plates Annealed steel coil strip Manufacturers Suppliers, China 55si2mn 60si2mn c60 high strength tool steel platesannealed steel coil strip manufacturer/supplier, China annealed steel coil strip manufacturer factory list, find qualified Chinese annealed steel coil strip manufacturers, suppliers, factories, exporters wholesalers quickly on .

Annealed steel coil strip Manufacturers Suppliers, China 55si2mn 60si2mn c60 high strength tool steel plates

annealed steel coil strip manufacturer/supplier, China annealed steel coil strip manufacturer factory list, find qualified Chinese annealed steel coil strip manufacturers, suppliers, factories, exporters wholesalers quickly on . Alloy L605 Cobalt Sheet - AMS 5537 - Haynes 25 equivalentUdimet Alloy&L605 (AMS 5537, AMS 5759) is a cobalt-chromium-tungsten-nickel alloy. It has good formability, high strength to 1500°F (816°C), and good oxidation resistance up to 1800°F (980°C). This material also has good sulfidation resistance and is well known for resistance to wear and galling. Alloy L605 is used in applications 55si2mn 60si2mn c60 high strength tool steel plates

ASTM A572 Steel Plate - A572 Grade 42, 50, 55, 60, 65 55si2mn 60si2mn c60 high strength tool steel plates

ASTM A572 steel plate is made of ASTM AA572, a High-Strength Low-Alloy, Columbium-Vanadium Structural Steel. There are five grades of high-strength low-alloy structural steel shapes, plates, sheet piling, and bars. Grades 42 , 50 , and 55 are best for riveted, bolted, or welded structures. ASTM A572 Grade50,55,60 HSLA Structural Steel Plate-AGICOASTM A572 Carbon Steel Plate. ASTM A572 Specification refers to High-Strength Low-Alloy Steel Plate for structural building, among the 5 steel grades of 42, 50, 55, 60 and 65, Grade 50 is one most common steel in applications where need more strength and less weight, use steel plate of this grade other than ordinary carbon steel will make the steel structure with same steel strength but 55si2mn 60si2mn c60 high strength tool steel plates

ASTM A572 Grade 50, 55, 60, 65 Steel Plates Specification 55si2mn 60si2mn c60 high strength tool steel plates

ASTM A572 steel plate is high strength low alloy (HSLA) structural steel integrated with alloy content of columbium-vanadium, with Grade 42, 50, 55, 60, 65. ASTM A516 Grade 60 and ASME SA516 Grade 60 Carbon Masteel stock a wide range of carbon steel plates according to ASTM A516 Grade 60 and ASME SA516 Grade 60, ideal for boiler and pressure vessel fabrication where improved notch toughness is important. technical details on these alloys are found herein.

A572 Structural, Carbon HSLA Steel Plate - Chapel Steel

A high-strength low-alloy steel plate that is utilized in a variety of structural applications. This specification is produced in Grades 42, 50, 55, 60 65, the grades representing the yield strength. Plates that are 4 and thicker are made to a 42 KSI yield, although material can be modified to reach the 50 KSI min yield. A572 Grade 42, 55, 60, 65 Steel Plates A572 Steel Plate ASTM A572 is used in a variety of structural applications, and is available in five grades 42, 50, 55, 60 65. What is A572 Steel Plate? ASTM A572 steel plate is a popular grade of high-strength low-alloy (HSLA) steel that is typically used in structural applications.

A572 CARBON In Stock Castle Metals Site

Carbon A572 (ASTM A572) is a low alloy, high strength steel, popular for its strength. With a better strength to weight ratio, A572 steel is a natural step up from A36 when more strength is needed. The increased strength of A572 plate does not compromise the steels ductility and weldability. A572 plate can therefore be formed, welded, and machined. A003en Steel Plates for Offshore StructuresTMCP is applied in high tensile strength thick steel plates of 490MPa or greater, and achieves marked and major improvement in characteristics such as lowtemperature toughness and weldability. TMCP is used in a wide variety of elds such as shipbuilding, marine structures, bridges, architecture, industrial

A-656 Grade 60, 70, 80 - American Alloy Steel

Overview. An 80,000 minimum yield grade used in construction areas where added strength is a concern. This low carbon / high manganese grade achieves its physical characteristics through the controlled rolled process along with small additions of Vanadium and Columbium. The low carbon provides good welding characteristics and enhanced 55si2mn 60si2mn c60 high strength tool steel plates 65MN Steel - Supplies Special Steel, Supplies Tool Steel 55si2mn 60si2mn c60 high strength tool steel plates65MN Steel. Professional manufacturer of 50#, 40Mn, 65Mn, 60Si2Mn, SK4, SK5, SK7, and Special Steel strips and high-precision Stainless steel spring leaves. We are well equipped with strong technical power, and advanced equipments such as continuum acid cleaning lines, six-roller reversible cold rolling units for hydraulic PC control system, bell type bright annealing furnaces,

60si2mna steel-p265 gh low temperature

Providing excellent service and competitive price for you, we are expecting to become your long-term partner in China. 60Si2Mn Spring Steel / 65 Mn Spring Steel 60Si2MnA GB : Total Materia60Si2MnA, GB, GB/T 1222, Spring steels, GB/T 3530, Heat treatment spring steel strips, GB/T 5218, Alloy spring steel wires, GB/T 19530, Hot-rolled wire rod for quenched and tempered springs, GB/T 3279, Hot-rolled spring steel sheets and plates

60Si2Mn Spring Steel / 65 Mn Spring Steel - Metal and 55si2mn 60si2mn c60 high strength tool steel plates

60Si2Mn is a silicon (1.50 - 2.00 Si) high carbon steel while 65Mn is a high-carbon steel equivalent to Type 1566. In any event, strength will depend on heat treatment and product form. It looks like the strength properties for 60Si2Mn are the minimums for quench-and-tempered cold drawn/hot rolled flat bar (actual values are 1275 MPa min TS 55si2mn 60si2mn c60 high strength tool steel plates 60Si2Mn (A) Steel60Si2Mn (A) Steel. Posted on 2014-12-26. (1) the characteristics of die steel towel carbon alloy spring steel, is the standard basic cold heading steel punch. The steel has a yield strength, fatigue limit is high, greater hardenability, good ductility, low steel prices, as well as the advantages of a simple heat treatment operations.

6061 Aluminum Sheet and Plate 6061-T4 Sheet

To narrow your 6061 AL sheet and plate search, please filter your specifications by length, width, thickness, or temper. Please stop by one of our California or Arizona locations or contact us if you need assistance selecting the right 6061 aluminum sheet or 6061 aluminum plate temper for your project needs. We also offer 5052, 3003 and Casting Tool Plate and Sheet. 600 S 162 - 543. Effective properties incorporate the strength increase from the cold work of forming as applicable per per NASPEC section A7.2. 4. Tabulated gross properties are based on the full, unreduced section away from punchouts. 5. Effective properties of all 'S' sections based on punched sections. Track sections are considered unpunched. 6.

60 / 60 High quality structural carbon steel

60 ( 60 ) - High quality structural carbon steel chemical composition, mechanical and physical properties, hardness Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys 55si2mn 60si2mn C60 High Strength Spring Tool Steel Plate 55si2mn 60si2mn c60 high strength tool steel plates55si2mn 60si2mn C60 High Strength Spring Tool Steel Plate 55si2mn 60si2mn c60 high strength tool steel plates Impact Resistance A514,T1 steel plate,Pressure Vessel Quality A516 steel plate,High Strength A572 steel plate,A588 Corten weathering steel plate,Abrasive Resisting AR400 steel plate,and Military Grade 46100 Armor Plate.Metals Depot's High Strength steel plates are ideal for a wide 55si2mn 60si2mn c60 high strength tool steel plates

550 and 610 MPa Class High-strength Steel Plates with 55si2mn 60si2mn c60 high strength tool steel plates

550 and 610 MPa Class High-strength Steel Plates with Excellent Toughness for Tanks and Penstocks Produced Using Carbide Morphology Controlling Technology Strength can be unequivocally rearranged by T.P. irrespectively of the heating rate. Toughness, on the other hand, cannot be rearranged solely by T.P. and heat- 55si2mn 60si2mn c60 high strength tool steel plates

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