Poland · PN
A2
PN H74598:1997 — PN H74598
Mechanical properties
value range by conditionMechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| +H18 OD ≤ 85.00mm;2.50 ≤ t ≤ 5.00mm | ≥100 | ≥5 A10 | ||||
| +H18 OD ≤ 85.00mm;t ≤ 2.00mm | ≥110 | ≥4 A10 | ||||
| steel tubes, Annealed +O | ≤100 全部尺寸 | ≥20 全部尺寸;A10 |