Chemical composition
Cast analysis, mass fraction %. Unspecified values are not zero. This grade is designated by tensile strength; carbon and other unlisted elements are determined by the supplier and cannot be inferred from its name.
| Element | Mass fraction / % |
|---|---|
| Si | 0.1～0.3 |
| Mn | 0.5～0.8 |
| P | ≤0.03 |
| S | ≤0.03 |
Properties and applicable conditions
| Property | Standard requirements and applicable conditions |
|---|---|
| Tensile strength Rm / MPa | 1000～1200 |
Standard reference and ordering limitations
- Annex C designations are based on tensile strength. The supplier determines C, Cr, Ni, Cu, Mo and Al to meet strength requirements; the standard gives no numerical limits. Carbon content cannot be inferred from the grade designation.
- Take specimens from 5 different coils per batch; tensile strength shall meet Table C.1. Intermediate grades require agreement between supplier and purchaser.
- Cast analysis; composition is expressed as mass fraction, %. An unspecified lower limit is not zero.
- Delivery condition, dimensions, surface, packaging and acceptance shall follow GB/T 24242.1—2020 and the order.
Reference: GB/T 24242.2-2020，Table C.1, C.2. Website information does not replace the official standard, order specifications or material certificates.
Illustrative packaging
Product and packaging images are illustrations; they do not identify a heat, stock availability, dimensions or a default delivery method. Confirm product form, delivery condition, packaging and acceptance requirements in the enquiry and order.