11SMnPb30 vs P355GH: 25% composition overlap. Significantly different materials serving different application areas.
11SMnPb30 vs P355GH
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.
P355GH
1.0473
Higher-strength pressure vessel steel — ReH >=355 MPa, guaranteed elevated-temperature properties. Between P265GH and 16Mo3 in the pressure vessel hierarchy. Used for boilers, steam drums, heat exchangers, and pressure piping operating to ~400°C. EN 10028-2, PED 2014/68/EU compliant. Good weldability.
| 11SMnPb30 | P355GH | |
|---|---|---|
| Material Number | 1.0718 | 1.0473 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10087 | EN 10028-2 |
Chemical composition (wt%)
| Element | 11SMnPb30 | P355GH | Overlap |
|---|---|---|---|
| C | 0–0.14% | 0–0.22% | OK |
| Si | 0–0.05% | 0–0.4% | OK |
| Mn | 0.9–1.3% | 0–1.6% | OK |
| P | 0–0.11% | 0–0.025% | OK |
Mechanical properties
| Property | 11SMnPb30 | P355GH | Unit |
|---|---|---|---|
| tensile_strength | 460–710 | 490–630 | MPa |
| yield_strength | ≥ 375 | ≥ 355 | MPa |
| elongation | ≥ 8 | ≥ 20 | % |
Compatibility Assessment
11SMnPb30 and P355GH have significantly different compositions (25% 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 P355GH?
11SMnPb30 and P355GH have a 25% composition overlap. They are generally not directly interchangeable.
Can I replace 11SMnPb30 with P355GH?
Generally not recommended. The compositions differ significantly (25% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 11SMnPb30 and P355GH?
The main differences are in the following elements: S. 11SMnPb30 is a Carbon Steel grade, while P355GH is a Carbon Steel grade.
Related Comparisons
View full data for each material:
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.