Q460C
Data verifiedQ460C is the 460 MPa class of GB/T 1591, the standard high-strength grade for landmark Chinese steel structures — it was the principal grade of the Beijing National Stadium. Quality C guarantees impact toughness at 0 °C.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.20 |
| Si | ≤0.50 |
| Mn | ≤1.70 |
| P | ≤0.030 |
| S | ≤0.030 |
| Nb | 0.015–0.06 |
| V | 0.02–0.20 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Yield strength | ≥460 MPa (≤16 mm) |
| Tensile strength | 550–720 MPa |
| Impact | C grade: 34 J at 0 °C |
| Density | 7.85 g/cm³ |
Heat treatment
Supplied normalized, TMCP or Q&T depending on thickness.
Equivalent grades
| Standard | Designation |
|---|---|
| din | S460ML (near) |
| aisi | A572 Gr.65 (near) |
| gb | Q460C (GB/T 1591) |
Compare side by side: Q460C vs Q420B · Q460C vs S460ML
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Stadiums and high-rise cores, bridges, heavy machinery, offshore jackets.
Processing: Weld with low-hydrogen consumables and procedure qualification; TMCP deliveries must not be reheated above the mill limit.
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Ask for a quotationVisit NasteelSource: GB/T 1591 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.