ASTM A36 vs C50E: 48% composition overlap. Significantly different materials serving different application areas.
ASTM A36 vs C50E
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).
C50E
1.1206
High-carbon unalloyed Q&T steel — 0.47-0.55% C. Higher strength than C45E at the expense of reduced weldability and toughness. Modern designation for Ck50. Suitable for induction hardening to HRC 55-60. Used for heavy-duty shafts, rail wheels, clutch plates, and springs where maximum unalloyed strength is needed. Also used for agricultural equipment and wear parts.
| ASTM A36 | C50E | |
|---|---|---|
| Material Number | K02600 | 1.1206 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A36/A36M | EN 10083-2 |
Chemical composition (wt%)
| Element | ASTM A36 | C50E | Overlap |
|---|---|---|---|
| C | 0–0.26% | 0.47–0.55% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0–1.03% | 0.6–0.9% | OK |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A36 | C50E | Unit |
|---|---|---|---|
| tensile_strength | 400–550 | 750–900 | MPa |
| yield_strength | ≥ 250 | 490–580 | MPa |
| elongation | ≥ 20 | 13–17 | % |
Compatibility Assessment
ASTM A36 and C50E have significantly different compositions (48% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is ASTM A36 the same as C50E?
ASTM A36 and C50E have a 48% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A36 with C50E?
Generally not recommended. The compositions differ significantly (48% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A36 and C50E?
The main differences are in the following elements: C. ASTM A36 is a Carbon Steel grade, while C50E is a Carbon Steel grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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