25-4-4

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#25-4-4

Description

25-4-4 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 25-4-4

Category	Type	Steel Grade
Steel Grades	Stainless Steel	25-4-4
		S44300
		444
		S44400
		S44500
		446
		S44600
		XM-33
		S44626
		XM-27
		S44627

Chemical composition(mass fraction)(wt.%) of the 25-4-4

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.025	0.75	1.00	0.040	0.030	24.5-26.0	3.5-4.5
Mo	Al	Cu	Nb	Ti	V	Ce
3.5-4.5
N	Co	Pb	B	Other
≤0.035				(Ti+Nb)=0.20+4*(C+N)~0.80

Mechanical Properties of steel grade 25-4-4

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)
357 (≥)	646 (≥)	41	41	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	221

Physical Properties of steel grade 25-4-4

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
23	-	-			0.23	-
275	673	-	42.3	313		-
599	-	24	33.2			421	142

Heat Treatment of steel grade 25-4-4

Heat treated : 1378°C - 1193°C

Technological Curves of steel grade 25-4-4

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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Wire rod

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