S700MC vs S500MC: Same EN 10149-2 HSLA family — S700MC offers 40% more yield
S700MC vs S500MC
Side-by-side chemical composition and mechanical property comparison.
Overview
S700MC
1.8974
The highest-strength grade in the EN 10149-2 HSLA series. 700 MPa yield with good cold formability. TMCP for ultra-fine grain structure. Used for telescopic cranes, truck frame rails, dirt-moving equipment, farm equipment, and any application requiring maximum weight reduction in cold-formed steel.
S500MC
1.0984
High-strength low-alloy (HSLA) hot-rolled steel for cold forming. Thermomechanically rolled for fine grain structure. 500 MPa yield strength with excellent cold formability. Used for automotive chassis, truck frames, crane booms, and agricultural equipment.
| S700MC | S500MC | |
|---|---|---|
| Material Number | 1.8974 | 1.0984 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10149-2 | EN 10149-2 |
Chemical composition (wt%)
| Element | S700MC | S500MC | Overlap |
|---|---|---|---|
| C | 0–0.12% | 0–0.12% | OK |
| Si | 0–0.6% | 0–0.5% | OK |
| Mn | 0–2.1% | 0–1.7% | OK |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | S700MC | S500MC | Unit |
|---|---|---|---|
| tensile_strength | 750–950 | 550–700 | MPa |
| yield_strength | ≥ 700 | ≥ 500 | MPa |
| elongation | ≥ 12 | ≥ 12 | % |
Compatibility Assessment
Both are TMCP for cold forming. S700MC reaches 700 MPa yield (vs 500) but has lower elongation (12% vs 12%) and requires more careful welding (lower heat input). S700MC enables more weight reduction but costs more and is harder to form.
Frequently Asked Questions
Is S700MC the same as S500MC?
S700MC and S500MC have a 70% composition overlap. Same EN 10149-2 HSLA family — S700MC offers 40% more yield
Can I replace S700MC with S500MC?
In many cases, yes. The compositions overlap significantly (70%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between S700MC and S500MC?
The main differences are in the following elements: overall alloying content. S700MC is a Carbon Steel grade, while S500MC is a Carbon Steel grade.
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