Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of 5140 41cr4 1.7035 alloy steel bar in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
The chemical composition of 5140 41Cr4 1.7035 alloy steel rod includes chromium and manganese, which enhance its strength and wear resistance. It exhibits high hardenability and can be heat-treated to achieve exceptional strength and durability. This material finds wide application in the production of shafts, gears, axles, connecting rods, as well as mechanical parts, high-performance automotive components, and other industrial parts requiring superior strength and durability.
| Chemical Composition | |||||||
| Carbon | Manganese | Silicon | Chromium | Molybdenum | Phosphorous | Sulphur | |
| Min | 0.38 | 0.7 | 0.15 | 0.7 | |||
| Max | 0.43 | 0.9 | 0.35 | 0.9 | 0.06 | 0.035 | 0.04 |
| Mechanical Property( for guidance only) | |||||||
| Tensile strength | Yield strength | Elongation | Reduction of area | ||||
| 980Mpa | 745MPa | 11 | 45 | ||||
| Related Specification | |||||||
| DIN: 41Cr4 W-Nr: 1.7035 JIS/KS: SCr440 |
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Similar designations :
41CrS4, SS2245, 530M40, 530H40, EN18, SCR440, 42C4, 1.7035, 1.7039
| EU | EN | 41Cr4 |
| Germany | DIN,WNr | 41Cr4 |
| Japan | JIS | SCr440H |
| France | AFNOR | 42C4 |
| England | BS | 530M40 |
| Italy | UNI | 41Cr4 |
| Spain | UNE | 42Cr4 / F1202 |
| Russia | GOST | 40KH / 45KH |
| Inter | ISO | 41Cr4 |
DIN 1.7035, AFNOR 41Cr4, BS 41Cr4, BS 530M40, UNE 41Cr4, AISI 5140, AISI 5140H, SAE 5140, SAE 5140H, JIS SCr440, JIS SCr440WCH, JIS SCr440H, JIS SCr440M, EN 41Cr4, EN 1.7035, GOST 41H, GOST 40Ch, GOST 38ChA, GB 40Cr, GB/T 40Cr, GB/T A20402, UNS H51400, UNS G51400
ASTM 5140 Material Chemical Composition and Equivalent
| Standard | Grade/Steel Number | C | Mn | P | S | Si | Cr | Ni |
| ASTM A29 | 5140 | 0.38-0.43 | 0.70-0.90 | ≤0.035 | ≤0.040 | 0.15-0.35 | 0.70-0.90 | – |
| EN 10083-3 | 41Cr4 / 1.7035 | 0.38-0.45 | 0.60-0.90 | ≤0.025 | ≤0.035 | ≤0.40 | 0.90-1.20 | – |
| JIS G4053 | SCr440 | 0.38-0.43 | 0.60-0.90 | ≤0.030 | ≤0.030 | 0.15-0.35 | 0.90-1.20 | ≤0.25 |
ASTM 5140 Steel Heat Treat
Soft Annealing
Heat to 680-720℃, cool slowly. This will produce a maximum 5140 hardness of 241HB (Brinell hardness).
Noramlizing of steel grade 5140
Temperature: 840-880℃.
Hardening of 5140 forged steel
Harden from a temperature of 820-850, 830-860℃ followed by water or oil quenching.
Tempering of SAE 5140 material
Tempering temperature: 540-680℃.
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