| Type: | Round |
|---|---|
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
| Composition: | Check Detailed Description |
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Spare Auto Parts Alloy Steel with 36CrNiMo4 9840 Rod Flat Steel Sheet Plate Pipe Block Round Bar
Dimensions
Hot Rolled Round: dia.10-260 mm.
Forged Round: dia.100-1500 mm.
Cold Drawn Round: dia.2.5-70 mm.
DeliveryCondition
EAF+LF+VD, Hot Rolled or Forged or Cold Drawn, Unmachined or Machined surface (Peeled, Turned, Grinded), Annealed, Hardenss≤269HB, UT 100% Passed.
Equivalence
| AISI / SAE | DIN / W.Nr | JIS | GB |
| 9840 | 36CrNiMo4 1.6511 | ---- | 40CrNiMoA |
Chemical Composition(%)
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 36CrNiMo4 1.6511 | 0.32-0.40 | ≤ 0.40 | 0.50-0.80 | ≤ 0.035 | ≤ 0.035 | 0.90-1.20 | 0.15-0.30 | 0.90-1.20 |
| 9840 | 0.38-0.43 | 0.20-0.35 | 0.70-0.90 | ≤ 0.040 | ≤ 0.040 | 0.70-0.90 | 0.20-0.30 | 0.85-0.15 |
Characteristics
1. It is a low-alloy steel containing chromium and molybdenum and nickel as strengthening agents,
with excellent hardenability, strength and toughness.
2. Pre-heat and post-weld stress relief are recommended for welding of this alloy. Welding should not
be carried out in the hardened and tempered condition.
Applications
This alloy is suited to production of highly stressed components of large cross section for aircraft, automotive and general engineering applications, such as forged propeller shafts, connecting rods,
gear shafts, crankshafts and landing gear components.
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