70Si7

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#70Si7

Description

70Si7 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 70Si7

Category	Type	Steel Grade
Steel Grades	Tool Steel	70Si7
		1.2746
		45NiCrMoV16-16
		1.2762
		75CrMoNiW6-7
		1.2764
		X19NiCrMo4
		1.2767
		45NiCrMo16
		X45NiCrMo4
		1.2823

Chemical composition(mass fraction)(wt.%) of the 70Si7

C	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni	Mo	Other
0.65-0.75	1.50-1.80	0.60-0.80	0.030	0.030

Mechanical Properties of steel grade 70Si7

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)
186 (≥)	349 (≥)	14	22	33	Solution and Aging, Annealing, Ausaging, Q+T,etc	343

Physical Properties of steel grade 70Si7

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
21	-	-			0.12	-
928	637	-	11.3	213		-
149	-	42	32.2			313	123

Heat Treatment of steel grade 70Si7

Heat treated : 1124°C - 1759°C

Technological Curves of steel grade 70Si7

No Curve

Cross Reference Table (Equivalent Grade) of 70Si7

Grade	Standard	Country	Application
70Si7	DIN	Germany	Cold working alloy tool steel

Available Suppliers

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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