ASTM A572 Grade 50 vs C35: 64% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A572 Grade 50 vs C35
Side-by-side chemical composition and mechanical property comparison.
Overview
ASTM A572 Grade 50
The most widely used structural steel grade in the United States. 345 MPa (50 ksi) yield strength HSLA steel. Has largely replaced A36 for structural applications due to higher strength-to-weight ratio. Used for building frames, bridges, heavy equipment, and general structural fabrication.
C35
1.0501
Medium-carbon unalloyed steel with moderate strength. Good machinability and weldability. Used for lightly stressed components like levers, axles, bolts, and general machine parts.
| ASTM A572 Grade 50 | C35 | |
|---|---|---|
| Material Number | — | 1.0501 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A572 | EN 10083-2 |
Chemical composition (wt%)
| Element | ASTM A572 Grade 50 | C35 | Overlap |
|---|---|---|---|
| C | 0–0.23% | 0.32–0.39% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0–1.35% | 0.5–0.8% | OK |
| P | 0–0.04% | 0–0.03% | OK |
Mechanical properties
| Property | ASTM A572 Grade 50 | C35 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 450 | 550–700 | MPa |
| yield_strength | ≥ 345 | ≥ 300 | MPa |
| elongation | ≥ 18 | ≥ 18 | % |
Compatibility Assessment
ASTM A572 Grade 50 and C35 have moderate differences (64% 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 A572 Grade 50 the same as C35?
ASTM A572 Grade 50 and C35 have a 64% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A572 Grade 50 with C35?
Generally not recommended. The compositions differ significantly (64% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A572 Grade 50 and C35?
The main differences are in the following elements: C. ASTM A572 Grade 50 is a Carbon Steel grade, while C35 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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