30CrMo steel is a Chinese alloy steel for engineering and machine structural use, has high strength and high toughness, and has good high temperature strength at temperatures below 500 °C. 30CrMo material also has good machinability, medium cold bending and plasticity, high hardenability, good weldability, and is generally used in the adjusted state.
30CrMo alloy steel can be used to manufacture steel pipes with working temperature below 400 °C, fasteners with operating temperature below 450 °C in boilers and steam turbines, nuts and flanges with working temperature below 500 °C and high pressure, and load in general machinery; Shafts, gears, bolts, studs, manipulators, high-pressure conduits and weldments in chemical equipment below 250 °C, nitrogen-hydrogen up to medium working.
Heat Treatment Specification of 30CrMo Material
1, First quenching heating temperature: 850 °C (Cooling: oil)
2, Tempering heating temperature: 500 °C (Cooling: water, oil)
Steel Grade | Chemical composition | ||||||||||
C | Si | Mn | P | S | P+S | Cr | Mo | V | Ni | Cu | |
37Mn | 0.34-0.40 | 0.10-0.30 | 1.35-1.65 | ≤0.030 | ≤0.030 | ≤0.055 | ≤0.30 | / | / | ≤0.30 | ≤0.20 |
34Mn2V | 0.30-0.37 | 0.17-0.37 | 1.40-1.75 | ≤0.030 | ≤0.030 | ≤0.055 | ≤0.30 | / | 0.07-0.12 | ≤0.30 | ≤0.20 |
30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | ≤0.030 | ≤0.055 | 0.80-1.10 | 0.15-0.25 | / | ≤0.30 | ≤0.20 |
35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.030 | ≤0.030 | ≤0.055 | 0.80-1.10 | 0.15-0.25 | / | ≤0.30 | ≤0.20 |
Steel Grade | Tensile Strength MPa | Yield Strength MPa | Elongation % |
37Mn | ≥750 | ≥630 | ≥16 |
34Mn2V | ≥745 | ≥530 | ≥16 |
30CrMo | ≥930 | ≥785 | ≥12 |
35CrMo | ≥980 | ≥835 | ≥12 |
Production Method | Tolerance for OD & WT % | |
Tolerance for OD | Tolerance for WT | |
Hot rolling Tube | ±1.0 | +12.5 -10 |
Cold Drawn (Cold Rolled) Tube | ±0.75 | +12.5 -10 |
steel pipe hydraulic repair | stainless steel hydraulic pipe price |
use black steel pipe for hydraulics | stainless steel hydraulic pipe pricelist |
using steel pipe for hydraulic lines | stainless steel hydraulic pipe sizes |
using steel pipe to plumb hydraulics | steel hydraulic pipe bend radius |
what is the name given to hydraulic steel pipe | steel hydraulic pipe malaysia |
wholesale stainless steel pipe hydraulic press | steel pipe hydraulic line repai |