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1.2738 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2738

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DIN 1.2738

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This page is mainly introduced the 1.2738 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2738,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Alloyed CrMnNiMo steel

Steel Garde:1.2738
Type:Tool Die Steels
Country:Germany
Standard:DIN
Standard Number:

ITEM Standard Number Descriptions

1 DIN EN ISO 4957 (1999) Tool steels (ISO 4957:1999)
Application:Alloyed CrMnNiMo steel

ITEM	Standard Number	Descriptions
1	DIN EN ISO 4957 (1999)	Tool steels (ISO 4957:1999)

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.35	0.45
Si	0.20	0.40
Mn	1.30	1.60
P		0.035
S		0.035
Cr	1.80	2.10
Mo	0.15	0.25
V
Ni	0.90	1.20

Mechanical Properties

Tensile strength	402～981	σb/MPa
Yield Strength	858	σ 0.2 ≥/MPa
Elongation	96	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	520～023	-
HRC	30	-

Physical Properties

Thermal expansion	54-47	e-6/K
Thermal conductivity	83-94	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4716-0429	째C
Density	0057-0632	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
1.2738 Tool Die Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk