11SMnPb30 vs S690Q: 24% composition overlap. Significantly different materials serving different application areas.
11SMnPb30 vs S690Q
Side-by-side chemical composition and mechanical property comparison.
Overview
11SMnPb30
1.0718
Leaded free-cutting steel — the highest machinability rating among carbon steels. Pb+S combination gives excellent chip breaking and surface finish. The standard grade for high-volume automatic lathe parts. Used for screws, nuts, bolts, bushings, pins, and automotive turned parts. ≈ AISI 12L14.
S690Q
1.8928
High-strength quenched and tempered structural steel — YS 690 MPa min. Part of EN 10025-6 series (S500Q to S960Q). Good weldability despite high strength (CEV controlled). Used for mobile cranes, mining equipment, truck chassis, bridge components, and any structure where weight reduction through higher strength is critical. "Q" = quenched, "L" variants add low-temp impact.
| 11SMnPb30 | S690Q | |
|---|---|---|
| Material Number | 1.0718 | 1.8928 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10087 | EN 10025-6 |
Chemical composition (wt%)
| Element | 11SMnPb30 | S690Q | Overlap |
|---|---|---|---|
| C | 0–0.14% | 0–0.2% | OK |
| Si | 0–0.05% | 0–0.8% | OK |
| Mn | 0.9–1.3% | 0–1.7% | OK |
| P | 0–0.11% | 0–0.02% | OK |
Mechanical properties
| Property | 11SMnPb30 | S690Q | Unit |
|---|---|---|---|
| tensile_strength | 460–710 | 770–940 | MPa |
| yield_strength | ≥ 375 | ≥ 690 | MPa |
| elongation | ≥ 8 | ≥ 14 | % |
Compatibility Assessment
11SMnPb30 and S690Q have significantly different compositions (24% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 11SMnPb30 the same as S690Q?
11SMnPb30 and S690Q have a 24% composition overlap. They are generally not directly interchangeable.
Can I replace 11SMnPb30 with S690Q?
Generally not recommended. The compositions differ significantly (24% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 11SMnPb30 and S690Q?
The main differences are in the following elements: S. 11SMnPb30 is a Carbon Steel grade, while S690Q is a Carbon Steel grade.
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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.