Typical Applications
Fasteners
Flanges
Valves
Pressure fittings
Chemical Composition
The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.
The chemical composition is given as % by mass.
| C | Mn | Cr | Ni | Mo | N | |
Typical | 0.02 | 17.2 | 10.1 | 2.1 | ||
ASTM A240 | ≤0.030 | ≤2.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | ≤0.10 |
EN 10028-7 | ≤0.030 | ≤2.00 | 16.5-18.5 | 10.0-13.0 | 2.00-2.50 | ≤0.10 |
Mechanical Properties
| Standard | Rp0.2 | Rp1.0 | Rm | Elongation | Rockwell | HB |
MPa | MPa | MPa | % | |||
Product type: Cold rolled coil and sheet | ||||||
Typical (thickness 1 mm) | 300 | 325 | 625 | 70 | ||
ASME II A SA-240 | ≥ 170 | ≥ 485 | ≤ 217 | |||
ASTM A240 | ≥ 170 | ≥ 485 | ≤ 95HRB | ≤ 217 | ||
EN 10028-7 | ≥ 240 | ≥ 270 | 530-680 | ≥ 40 | ||
Product type: Hot rolled coil and sheet | ||||||
Typical (thickness 4 mm) | 300 | 350 | 600 | 55 | 170 | |
ASME II A SA-240 | ≥ 170 | ≥ 485 | ≤ 217 | |||
ASTM A240 | ≥ 170 | ≥ 485 | ≤ 217 | |||
EN 10028-7 | ≥ 240 | ≥ 270 | 530-680 | ≥ 40 | ||
Physical Properties
| Density | Modulus of elasticity | Thermal exp. at 100 °C | Thermal conductivity |
kg/dm3 | GPa | 10-6/°C | W/m°C |
8.0 | 200 | 16,0 | 15 |
