1.4742

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# #1.4742

Description

1.4742 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 1.4742

Category	Type	Steel Grade
Steel Grades	Stainless Steel	1.4742
		X10CrAl18
		X18Cr28
		X10CrAlSi 25
		X10CrAl24
		X15CrNiSi 25-4
		X20CrNiSi 25-4
		X15CrNiSi 20-12
		1.4720
		1.4724
		1.4749

Chemical composition(mass fraction)(wt.%) of the 1.4742

C ≤	Si	Mn ≤	P ≤	S ≤	Cr	Ni	Other
0.12	0.70-1.40	1.00	0.040	0.015	17.00-19.00		Al 0.70-1.20

Mechanical Properties of steel grade 1.4742

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
391 (≥)	974 (≥)	31	21	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	144

Physical Properties of steel grade 1.4742

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
11	-	-			0.12	-
295	311	-	24.3	112		-
639	-	24	41.2			424	342

Heat Treatment of steel grade 1.4742

Heat treated : 1795°C - 1884°C

Technological Curves of steel grade 1.4742

No Curve

Cross Reference Table (Equivalent Grade) of 1.4742

Grade	Standard	Country	Application
Q195		China	Engineering and welding
Q215		China	Engineering and welding
Q215 B		China	Engineering and welding
Q235		China	Engineering and welding
Q235 B		China	Engineering and welding
Q235 C		China	Engineering and welding
Q235 D		China	Engineering and welding
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
Q275		China	Engineering and welding
Q235q C		China	Bridge structure with steel
Q235q D		China	Bridge structure with steel
Q345q E		China	Bridge structure with steel
Q345q C		China	Bridge structure with steel
ASTM 1030	ASTM	USA	General use carbon steel bar
UNS G10300	UNS	USA	General use carbon steel bar
ASTM 1005	ASTM	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
ASTM 1006	ASTM	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar

Available Suppliers

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Rfq.: sales@longhaisteel.com

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