Australia · AS
X9940
AS/NZS 1444:2007 — Wrought alloy steels - Standard, hardenability (H) series and hardened and tempered to designated mechanical properties
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.36 | 0.44 | ||
| Cr | 0.5 | 0.8 | ||
| Cu | 0.35 | |||
| Mn | 0.45 | 0.7 | ||
| Mo | 0.45 | 0.65 | ||
| Ni | 2.3 | 2.8 | ||
| P | 0.04 | |||
| S | 0.04 | |||
| Si | 0.1 | 0.35 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, forgings, quenched and tempered, d = 100 mm, billets, blooms | 1125.00 | 1550.00 | 7.00 | 11.00 | ||
| bars, forgings, quenched and tempered, d = 100 mm, HB, blooms | 钢坯 444.00 | |||||
| bars, forgings, quenched and tempered, d = 150 mm, billets, blooms | 1080.00；1005.00；925.00；835.00；740.00 | 1230.00；1150.00；1080.00；1000.00；930.00 | 10.00；11.00；12.00 | 28.00；35.00；42.00 | ||
| bars, forgings, quenched and tempered, d = 150 mm, HB, blooms | 钢坯 363.00；钢坯 341.00；钢坯 311.00；钢坯 293.00；钢坯 269.00 | |||||
| bars, forgings, quenched and tempered, d = 250 mm, billets, blooms | 910.00；820.00；725.00 | 1080.00；1000.00；930.00 | 11.00；12.00 | 22.00；28.00 | ||
| bars, forgings, quenched and tempered, d = 250 mm, HB, blooms | 钢坯 311.00；钢坯 293.00；钢坯 269.00 |