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30CrNiMo8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 30CrNiMo8

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AFNOR 30CrNiMo8

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This page is mainly introduced the 30CrNiMo8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 30CrNiMo8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes

Steel Garde:30CrNiMo8
Type:Stainless Steels
Country:France
Standard:AFNOR

Standard Number:

ITEM	Standard Number	Descriptions
1	NF EN 10083-1	Steels for quenching and tempering - Part 1: General technical delivery conditions
2	NF EN 10083-3	Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels
3	NF EN 10250-3	Open die steel forgings for general engineering purposes - Part 3: Alloy special steels
4	NF EN 10269	Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
5	NF EN 10297-1	Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes

Application:Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.26	0.34
Si		0.40
Mn	0.30	0.60
P		0.035
S		0.035
Cr	1.80	2.20
Ni	1.80	2.20
Mo	0.30	0.50

Mechanical Properties

Tensile strength	268～423	σb/MPa
Yield Strength	163	σ 0.2 ≥/MPa
Elongation	99	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	392～824	-
HRC	30	-

Physical Properties

Thermal expansion	54-60	e-6/K
Thermal conductivity	96-05	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6828-1062	째C
Density	3078-5073	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)
30CrNiMo8 Stainless 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