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1.7225 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.7225

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AFNOR 1.7225

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This page is mainly introduced the 1.7225 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.7225,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steels for quenching and tempering for construction purposes - Technical delivery conditions

Steel Garde:1.7225
Type:Stainless Steels
Country:France
Standard:AFNOR

Standard Number:

ITEM	Standard Number	Descriptions
1	NF A 35-590	Tool steels
2	NF EN 10083-1	Steels for quenching and tempering - Part 1: General technical delivery conditions
3	NF EN 10083-3	Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels
4	NF EN 10132-3	Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 3: Steels for quenching and tempering
5	NF EN 10250-3	Open die steel forgings for general engineering purposes - Part 3: Alloy special steels
6	NF EN 10263-4	Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering
7	NF EN 10269	Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
8	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
9	NF EN 10305-1	Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes
10	NF EN 10343	Steels for quenching and tempering for construction purposes - Technical delivery conditions

Application:Steels for quenching and tempering for construction purposes - Technical delivery conditions

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
42CrMo4	AFNOR	France

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.38	0.45
Si		0.40
Mn	0.60	0.90
P		0.035
S		0.035
Cr	0.90	1.20
Ni
Mo	0.15	0.30

Mechanical Properties

Tensile strength	453～949	σb/MPa
Yield Strength	566	σ 0.2 ≥/MPa
Elongation	75	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	521～055	-
HRC	30	-

Physical Properties

Thermal expansion	22-48	e-6/K
Thermal conductivity	26-85	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7749-3264	째C
Density	4484-3520	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)
1.7225 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