14NiCrMo13-4
1.6657High-nickel case-hardening steel for heavily loaded large gears, shafts, and drivetrain components. Excellent core toughness with case hardness up to 62 HRC after carburizing. The high nickel content (3.0–3.5%) provides superior impact resistance even at low temperatures. Standard material for wind turbine gearboxes, heavy-duty industrial gears, and aerospace transmissions. Also known as EN36C (BS) and similar to SAE 9310.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 9310 | G93106 | REF |
| 🇬🇧 | BS | United Kingdom | EN36C / 832M13 | — | 95% |
| 🇺🇸 | AMS | USA | AMS 6263 | — | 93% |
Sources: ASTM cross-ref, BS 970, AMS spec
Mechanical properties — Pro
Case Hardened
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Hardness HRC | ||
| Density | ||
| Elastic Modulus |
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S235J2W
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EN-GJS-500-7
5.3200Ferritic-pearlitic ductile cast iron with minimum tensile strength 500 MPa and minimum elongation 7%. The balanced grade offering significantly higher strength than EN-GJS-400-15 while retaining reasonable ductility. Mixed ferrite-pearlite matrix (typically 40-50% pearlite). Used for crankshafts, connecting rods, suspension components, gear housings, heavy-duty pipe fittings, and medium-stress structural castings. Equivalent to DIN GGG50, JIS FCD500.
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