42CrMoV steel golden supplier available on stock

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$1,500.00 - $1,700.00 / Tons | 1 Ton/Tons (Min. Order)
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Overview
Quick Details
Standard:
AISI, DIN
Dimensions:
10mm~650mm
Place of Origin:
Liaoning, China (Mainland)
Brand Name:
DLDT
Model Number:
round bar
Technique:
Hot Rolled
Application:
Tool Steel Bar
Alloy Or Not:
Is Alloy
Special Use:
Mold Steel
Type:
Alloy Steel Bar
Grade:
1.6582 steel
Processing:
forged
Surface treatment:
black and peeled
Length:
3-6m
Supply Ability
Supply Ability:
3000000 Ton/Tons per Year
Packaging & Delivery
Packaging Details
suitable package for sea delivery
Port
Dalian port
Lead Time :
25 days
Product Description

Steel 42CrMo (GB )   and its European equivalent 42CrMo4 (1.7225) ( EN ) is a common chromium-molybdenum steel that usually used after quenched and tempered, with high intensity, high hardenability. BS EN 42CrMo4 round steel has better performance than 34CrMo4 steel due to the carbon and chromium content is higher. 42CrMo4 alloy steel has higher strength and hardenability. The 42CrMo4 alloy material also has high fatigue strength and good low-temperature impact toughness. The temper brittleness is not obvious.

Although 42CrMo4 steel is more expensive than 41Cr4 steel, it is more preferable in terms of material properties. EN 42CrMo4 alloy engineering steel materials have been widely used in automotive driving elements.

1.    Chemical composition:

C

Mn

Si

P

S

Cr

Mo

0.38-0.45

0.6-0.9

Max0.40

Max0.035

0.035

0.90-1.20

0.15-0.30

 

2.    DIN 42CrMo4 Alloy Steel Mechanical Properties:

Size dia.mm

Yield strength Rp0.2N/mm2

Ultimate tensile Strength Rm N/mm2

Elongation A5 %

Hardness HB

<40

750

1000-1200

11

295-355

40-95

650

900-1100

12

265-325

>95

550

800-950

13

235-295

 

3.Heat Treatment of 42CrMo4 Steels

Annealing of 42CrMo4 Steels

  • Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;
  • Cool slowly in the furnace to the temperature 480°;
  • Complete annealing the steel in the air.

RFQ OF 42CRMO4 STEEL

Quenched and Tempered (Q+T)

  • Heat 42CrMo4 steel slowly to 880°C;
  • Soak at this temperature then quench in oil;
  • Temper as soon as 42CrMo4 steel reach room temperature (20°C);
  • Heat uniformly to the suitable temperature of 560°C;
  • Withdraw the 42CrMo4 material from the furnace and cool in the air.

. Forging of 42CrMo4 Alloy Steel

  • Preheat 42CrMo4 engineering steel uniformly and slowly;
  • Increase the forging temperature up to 1150-1200°C.
  • Always keep the forging temperature above at least 850°C

4.Weldability

Engineering steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is strongly recommended; the upper limit should not be exceeded because of risk for deterioration of the chrome layer.

Alloy steel 42CrMo4 can be friction welded. However, precautions are necessary so as to limit the formation of undesirable microstructures in the welded zone.

5.Application of 42CrMo4 Alloy Steels

EN 42CrMo4 alloy steel is widely used for engineering steel purpose, such as: making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the connecting rob, the pinchock under the high pressure, parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc. 

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