14NiCrMo13-4 vs 20NiCrMo2-2: 42% composition overlap. Significantly different materials serving different application areas.
14NiCrMo13-4 vs 20NiCrMo2-2
Side-by-side chemical composition and mechanical property comparison.
Overview
14NiCrMo13-4
1.6657
High-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.
20NiCrMo2-2
1.6523
Nickel-chromium-molybdenum case-hardening steel — the base grade of the 8620 family. Good weldability, toughness, and machinability. Case hardness up to HRC 60–63 with core strength 700–1100 MPa after carburizing and quenching. Used for gears, shafts, pinions, piston pins, and camshafts in automotive, gearbox, and general mechanical engineering. Equivalent to AISI 8620 and BS 805M20.
| 14NiCrMo13-4 | 20NiCrMo2-2 | |
|---|---|---|
| Material Number | 1.6657 | 1.6523 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 10084 | EN 10084 |
Chemical composition (wt%)
| Element | 14NiCrMo13-4 | 20NiCrMo2-2 | Overlap |
|---|---|---|---|
| C | 0.11–0.17% | 0.17–0.23% | Partial |
| Si | ≤ 0.4% | ≤ 0.4% | OK |
| Mn | 0.3–0.6% | 0.65–0.85% | No overlap |
| P | ≤ 0.025% | ≤ 0.025% | OK |
Mechanical properties
| Property | 14NiCrMo13-4 | 20NiCrMo2-2 | Unit |
|---|---|---|---|
| tensile_strength | 1100–1400 | 700–1100 | MPa |
| yield_strength | ≥ 850 | ≥ 500 | MPa |
| elongation | ≥ 9 | ≥ 10 | % |
Compatibility Assessment
14NiCrMo13-4 and 20NiCrMo2-2 have significantly different compositions (42% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 14NiCrMo13-4 the same as 20NiCrMo2-2?
14NiCrMo13-4 and 20NiCrMo2-2 have a 42% composition overlap. They are generally not directly interchangeable.
Can I replace 14NiCrMo13-4 with 20NiCrMo2-2?
Generally not recommended. The compositions differ significantly (42% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 14NiCrMo13-4 and 20NiCrMo2-2?
The main differences are in the following elements: C, Mn, Cr, Mo. 14NiCrMo13-4 is a Alloy Steel grade, while 20NiCrMo2-2 is a Alloy Steel grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.