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When properly hardened, 4340 exhibits a good combination of strength, ductility and toughness; this is the material to which other ultra-strength steels are compared. PACIFIC 4340 Heat Treated bars are hardened to 285/331 HB and meet ASTM A 434, Class BD. 4340 is weldable but only with proper precautions; because of its high hardenability, it requires both preheat and post heat in virtually all
4340 steel has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally, 4340 can
4340 CD Steel Bar. Cold rolled 4340 steel bar is widely used throughout the aerospace industry because of its high strength and ductility properties. This grade is a medium carbon nickel-chromium-molybdenum that has good shock and impact resistance.
Yield Strength, Tensile Strength and Ductility Values for Steels at Room TemperatureMaterialYield StrengthTensile Strength % Elong. MPa (ksi) MPa (ksi) Steel Alloy A36 - Hot rolled220 - 250 (32 - 36) 400 - 500 (58 - 72.5) 23Steel Alloy 1020 - Hot rolled210 (30) (min) 380 (55) (min) 25 (min) Steel Alloy 1020 - Cold drawn350 (51) (min) 420 (61) (min) 15 (min)
4340 steel has high strength, toughness, wear resistance, and fatigue strength. It can be machined in all states other than hardened and it is easily welded. Additionally,
AISI 4340 steel is a medium carbon, low alloy steel known for its toughness and strength in relatively large sections. AISI 4340 is also one kind of nickel chromium molybdenum steels. 4340 alloy steel is generally supplied hardened and tempered in the tensile range of 930 – 1080 Mpa.
4340 Cold Drawn Steel Bar. Cold drawn 4340 steel bar is widely used throughout the aerospace industry because of its high strength and ductility. This grade is a medium carbon, nickel-chromium-molybdenum steel that has good shock and impact resistance.
ApplicationsUsed for manufacture big sized important Quenched-and-Tempered parts which request good toughness and high strength.such as top load shaft in heavy-duty machinery; For steam turbine shaft, vane, and heavy-load transmission parts, fastening piece, crankshaft, gears etc. with diameter is biger than 250mm.
Yield Strength review and materials chart Modulus of Elasticity, Average Properties of Structural Materials, Shear Modulus, Poisson's Ratio, Density Thermal Properties of Metals, Conductivity, Thermal Expansion, Specific Heat
Mechanical Property Alloy Steel Average Physical Properties of Alloy Steel *With the addition of .15/.35 per cent Lead to these alloys, mechanical properties are not appreciably affected. Machinability, however, is improved approximately 25 per cent.
> Steel Forming ProcessHot Rolled, Cold Rolled, Forging & Casting Steel Forming ProcessHot Rolled, Cold Rolled, Forging & Casting When choosing a steel materials for a job, it is important to know the difference between the different types of steel grades, steel process available, how it is used and the advantages of including it in your
Tensile Strength (MPa) 1724 Yield Strength (MPa) 1586 Elongation (%) 10 Reduction in Area (%) 40 25oil quenched, fine grained, tempered at 425°C Tensile Strength (MPa) 1469 Yield Strength (MPa) 1365 Elongation (%) 10 Reduction in Area (%) 44 25oil quenched, fine grained, tempered at 540°C Tensile Strength (MPa) 1172 Yield Strength (MPa) 1076 Elongation (%) 13
Other designations of AISI 4340 alloy steel include UNS G43400 and AISI 4340. AISI 4340 is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treating condition while retaining good fatigue strength.
Materials » Alloys » Steel » Alloy Steel » ASTM A517 Grade A Materials » Alloys » Steel » Stainless Steel » AISI Type 502 Materials » Alloys » Steel » Alloy Steel » ASTM A202 Grade A
Above chemistry applies to all 4340 (E4340) Plate Specifications (AMS 6359) - Annealed, AMS 6415 Round Bar Cold Finished- Annealed, AMS 6415 Round Bar Hot Rolled- Annealed.. About AMS 6415 Round Bar (Cold Finished, Hot Rolled) AMS 6415 round bar cold finished or hot rolled steel 4340 is one of the richer alloy steels, featuring hardenability with high strength characteristics.
The Table chart below gives typical mechanical characteristics for selected carbon steel properties. For all critical applications, verify to the applicable industry or requisite material / steel standard AISI Carbon Steel Mechanical Characteristics - Yield, Tensile, Hardness AISI 1015 - AISI 1340 Hot Rolled Normalized (1700 F) Annealed
4340 alloy steel bar is used heavily in the aerospace industry due to its ultra-high strength. When heat treated it is known for its toughness while preserving good fatigue strength. For highly stressed parts it is excellent choice. It can be machined by all customary methods. This material is available in both vacuum melt (VM) and air melt (AM).
Steel Forming Process 1 – Hot Rolled Steel. Hot rolling is a mill process which involves rolling the steel at a high temperature (typically at a temperature over 1700°
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