1.6511 Alloy Steel Round Bar High Pressure Steel Pipe For Producing
1.6511|36CrNiMo4 Alloy structural steel properties is very simliar with GB 40CrNiMo steel, JIS SNCM439 and ASTM 4340 Alloy structural steel. At most work environment, 1.6511|36CrNiMo4 is equivalent with 40CrNiMo steel, 4340 steel, SNCM439 steel.
Chemical composition
| C(％) | 0.38～0.43 | Si(％) | 0.15～0.35 | Mn(％) | 0.60～0.80 | P(％) | ≤0.035 |
| S(％) | ≤0.040 | Cr(％) | 0.70～0.90 | Mo(％) | 0.20～0.30 | Ni(%) | 1.65～2.00 |
Mechanical Properties in Hardening and Tempering Condition
| Diameter (mm) |
0.2 % proof stress (N/mm2) |
Tensile strength (N/mm2) |
Elongation (%) | Reduction of area (%) | Notch impact energy (J) |
| <16 | 900 | 1100-1300 | 10 | 45 | 40 |
| 17-40 | 800 | 1000-1200 | 11 | 50 | 45 |
| 41-100 | 700 | 900-1100 | 12 | 55 | 50 |
| 101-160 | 600 | 800-950 | 13 | 60 | 50 |
| 161-250 | 550 | 750-900 | 14 | 60 | 50 |
Applications
For permanently stressed components with large cross sections for automotive and mechanical engineering. For economic performance under severe dynamic stress, parts must be designed for optimum strength or toughness.
