Sweden · SS

1.7227

SS EN 10263-4

Chemical composition

wt% · log scale

min – max range
typical value

Mechanical properties

value range by condition

Physical properties

vs. temperature

Elastic modulus GPa

Mean thermal expansion 10⁻⁶/K

Thermal conductivity W/(m·K)

Chemical composition

Element	min	max	Similar	Remarks
C	0.38	0.45		A carbon range of 0
Cr	0.9	1.2
Cu		0.25
Mn	0.6	0.9
Mo	0.15	0.3
P		0.025
S	0.02	0.04
Si		0.3		A lower silicon content or a specific silicon range may be agreed at the time of ordering

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
bars, wire +AC+C+AC, > 2 <= 5 mm, steel bars		620.00		60
bars, wire +AC+C+AC, > 5 <= 40 mm, steel bars		610.00		60
bars, wire +AC+C+AC+LC, > 2 <= 5 mm, steel bars		660.00		58
bars, wire +AC+C+AC+LC, > 5 <= 40 mm, steel bars		650.00		58
bars, wire, or , > 5 <= 40 mm, steel bars		630.00		58

Physical properties

Temperature

20.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
210.00		33.50	460.00	0.19	7.85

100.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
205.00	11.10

200.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
195.00	12.10

250.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		34.00

300.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
185.00	12.90

400.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
175.00	13.50

500.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	13.90	34.20

600.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
155.00	14.10

Typical physical values

Density	Elastic modulus	Poisson's ratio	Remarks
7.72–8.00	190.00–210.00	0.27–0.30	Typical property values for tool steel. These values are not taken from the standard; they are indicative and must not be used for design.
7.85	200.00–207.00	0.27–0.30	Material properties for low-carbon low-alloy steel. These values are not taken from the standard; they are indicative and must not be used for design.

Heat treatment

Type	1
Heat-treatment curve	CCT modified
Heat-treatment curve	Hardness-Tempering
Heat-treatment curve	CCT
Heat-treatment curve	TTT
Heat-treatment curve	Hardenability

Similar grades

Grade	Region	System
1.7227	Italy	UNI
42 CrMoS 4	Italy	UNI
1.7227	Spain	UNE
42 CrMoS 4	Spain	UNE
1.7227	Romania	STAS
42 CrMoS 4	Romania	STAS
42 CrMoS 4	Sweden	SS
1.7227	Switzerland	SNV
42 CrMoS 4	Switzerland	SNV
1.7227	Finland	SFS
42 CrMoS 4	Finland	SFS
1.7227	Poland	PN
42 CrMoS 4	Poland	PN
1.7227	Austria	ONORM
42 CrMoS 4	Austria	ONORM
1.7227	Norway	NS
1.7227	Belgium	NBN
1.7227	Hungary	MSZ
42 CrMoS 4	Hungary	MSZ
1.7227	Czech Republic	CSN
42 CrMoS 4	Czech Republic	CSN
1.7227	Bulgaria	BDS
42 CrMoS 4	Bulgaria	BDS
1.7227	United Kingdom	B.S.
1.7227	France	AFNOR NF
42 CrMoS 4	Norway	NS
42 CrMoS 4	Belgium	NBN
42 CrMoS 4	France	AFNOR NF
42 CrMoS 4	Germany	DIN
1.7227	Germany	DIN
42 CrMoS 4	United Kingdom	B.S.