1.7779

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#1.7779

Description

1.7779 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 1.7779

Category	Type	Steel Grade
Steel Grades	Carbon Steel	1.7779
		1.7281
		24CrMo10
		1.7273
		26CrMo7
		1.7259
		17CrMoV10
		1.7766
		25CrMo4
		1.7218
		20CrMoV13-5

Chemical composition(mass fraction)(wt.%) of the 1.7779

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.17-0.23	0.15-0.35	0.30-0.50	0.025	0.020	3.00-3.30
Mo	Al	Cu	Nb	Ti	V	Ce
0.50-0.60					0.45-0.55
N	Co	Pb	B	Other

Mechanical Properties of steel grade 1.7779

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)
937 (≥)	115 (≥)	32	44	23	Solution and Aging, Annealing, Ausaging, Q+T,etc	124

Physical Properties of steel grade 1.7779

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	-	-			0.31	-
258	452	-	22.3	234		-
761	-	14	31.2			324	421

Heat Treatment of steel grade 1.7779

Heat treated : 1495°C - 1474°C

Technological Curves of steel grade 1.7779

No Curve

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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