A572 Gr.65 vs S460ML
These two grades are listed as equivalents of each other: their chemistry windows overlap and they serve the same applications. They are not always identical — check the differences below before substituting, especially in certified designs.
A572 Gr.65
Structural & HSLA Steel
ASTM A572 Grade 65 tops the A572 family at 65 ksi yield. It is the American route to S460-class weight savings in buildings and bridges without leaving the familiar A572 specification and its welding practice.
Standards: DIN S460M (near) · AISI A572 Gr.65 · JIS SM570 (near) · GB Q460 class (near)
S460ML
Structural & HSLA Steel
S460ML is a thermomechanically rolled fine-grain steel to EN 10025-4 with a 460 MPa yield and impact toughness guaranteed to −50 °C. TMCP processing gives this strength at very low carbon, so weldability stays excellent for a 460-class steel.
Standards: DIN 1.8838 (S460ML) · AISI A572 Gr.65 (near) · GB Q460 class (near)
Chemical composition compared (%)
| Element | A572 Gr.65 | S460ML |
|---|---|---|
| C | ≤0.26 | ≤0.16 |
| Si | ≤0.40 | ≤0.60 |
| Mn | ≤1.65 | ≤1.70 |
| P | ≤0.035 | ≤0.025 |
| S | ≤0.045 | ≤0.020 |
| Note | Nb/V microalloy type per ASTM A572 | — |
| Nb | — | ≤0.05 |
| V | — | ≤0.12 |
| Ni | — | ≤0.80 |
Properties compared
| Property | A572 Gr.65 | S460ML |
|---|---|---|
| Yield strength | ≥450 MPa (65 ksi) | ≥460 MPa (≤16 mm) |
| Tensile strength | ≥550 MPa (80 ksi) | 500–660 MPa |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Impact | — | ML: 27 J at −50 °C |
Sourcing either grade?
Nasteel stocks both families from Shenzhen with EN 10204 3.1 mill certificates by heat number.
Ask for a quotationSee full data sheets: A572 Gr.65 · S460ML. Substitution decisions for certified parts stay with the design authority.