ASTM A36 vs C22E: 54% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A36 vs C22E
Side-by-side chemical composition and mechanical property comparison.
Overview
ASTM A36
K02600
The most common structural carbon steel in the US. Low carbon content with good weldability and machinability. Used for buildings, bridges, construction equipment, and general structural purposes. Minimum yield strength 36 ksi (250 MPa).
C22E
1.1151
Low-carbon unalloyed steel for case hardening and general engineering — 0.17-0.24% C. After carburizing: surface HRC 55-60, soft tough core. Much cheaper than alloy case-hardening steels (16MnCr5, 20MnCr5). Modern designation for Ck22. Used for pins, bolts, levers, lightly loaded gears, and any carburized part where alloy additions are not justified. Also used as cold-heading wire.
| ASTM A36 | C22E | |
|---|---|---|
| Material Number | K02600 | 1.1151 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A36/A36M | EN 10083-2 |
Chemical composition (wt%)
| Element | ASTM A36 | C22E | Overlap |
|---|---|---|---|
| C | 0–0.26% | 0.17–0.24% | OK |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0–1.03% | 0.4–0.7% | OK |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A36 | C22E | Unit |
|---|---|---|---|
| tensile_strength | 400–550 | 410–540 | MPa |
| yield_strength | ≥ 250 | 240–280 | MPa |
| elongation | ≥ 20 | 22–28 | % |
Compatibility Assessment
ASTM A36 and C22E have moderate differences (54% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is ASTM A36 the same as C22E?
ASTM A36 and C22E have a 54% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A36 with C22E?
Generally not recommended. The compositions differ significantly (54% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A36 and C22E?
The main differences are in the following elements: overall alloying content. ASTM A36 is a Carbon Steel grade, while C22E is a Carbon Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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