20CrNiMoA Hot Forged Alloy Steel Round Bar
20CrNiMoA Hot Forged Alloy Steel Round Bar
20CrNiMoA Hot Forged Alloy Steel Round Bar
20CrNiMoA Hot Forged Alloy Steel Round Bar
Model
20CrNiMoA

Item specifics

Delivery Condition
+QT or annealed
Surface Condition
black or grounded or peeled

Review

Description

20CrNiMoA Alloy Steel

 

Supplying Size:

Rolled: Diameter 40-200mm

Forged: Diameter 80-600mm

 

Equivalent

USA

Germany

China

Japan

France

England

ISO

ASTM/AISI/UNS/SAE

DIN,WNr

GB

GB

AFNOR

BS

ISO

8620 / G86200

21NiCrMo2/ 1.6523

20CrNiMo

SNCM220

20NCD2

805M20

20NiCrMo2

 

Chemical composition

C

0.170.23

Si

0.170.37

Mn

0.600.95

P

≤0.035

S

≤0.035

Cr

0.400.70

Mo

0.200.30

Ni

0.350.75

 

Mechanical Properties

The mechanical properties of annealed GB 20CrNiMoA alloy steel are outlined in the table below

Tensile

Yield

Bulk modulus

Shear modulus

Poisson’s ratio

Izod Impact

KSI

KSI

KSI

KSI

 

ft.lb

76900

55800

20300

11600

0.27-0.30

84.8

 

Heat treatment Related

Annealing of 20CrNiMoA Alloy structural steel

Slowly heated to 850c and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The 20CrNiMoA alloy steel will get MAX 250 HB (Brinell hardness).

Hardening of 20CrNiMoA Alloy structural steel

Heated slowly to 880-920c, Then after adequate soaking at this temperature quench in oil. Temper as soon as tools reach room temperature.

 

GB 20CrNiMoA

alloy Steel is a high quality Quenched and Tempered Alloy Structural steel, and it belong to the high quality low carbon, low chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRC. GB 20CrNiMoA steel Annealing delivery hardness less than 250HB.

 

GB 20CrNiMoA 

Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 20CrNiMoA With a lower carbon content range, So GB 20CrNiMoA steel have good weldability.

 

Applications

GB 20CrNiMoA steel is widely used for a variety of applications in the used in the automotive and engineering industries for toolholders and other such components. Typical applications such as valve bodies, pumps and fittings, Shaft, the high load of wheel, bolts, double-headed bolts, gears, etc

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