71Si7

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#71Si7

Description

71Si7 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 71Si7

Category	Type	Steel Grade
Steel Grades	Carbon Steel	71Si7
		38Si7
		1.5023
		46Si7
		1.5024
		51Si7
		1.5025
		55Si7
		1.5026
		56Si7
		1.5026

Chemical composition(mass fraction)(wt.%) of the 71Si7

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.68-0.75	1.50-1.80	0.60-0.80	0.035	0.035
Mo	Al	Cu	Nb	Ti	V	Ce

N	Co	Pb	B	Other

Mechanical Properties of steel grade 71Si7

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)
249 (≥)	223 (≥)	21	44	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	323

Physical Properties of steel grade 71Si7

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
33	-	-			0.33	-
384	426	-	23.3	313		-
892	-	22	12.2			342	233

Heat Treatment of steel grade 71Si7

Heat treated : 1722°C - 1417°C

Technological Curves of steel grade 71Si7

No Curve

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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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