Thermax 638

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#Thermax #638

Description

Thermax 638 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: Thermax 638

Category	Type	Steel Grade
Steel Grades	High Alloy	Thermax 638
		Thermax 90
		Thermax 102
		Thermax 104
		Thermax 115
		Thermax 500
		Thermax 519
		Thermax 530
		Thermax 531
		Thermax 532
		Thermax 533

Chemical composition(mass fraction)(wt.%) of the Thermax 638

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.4-0.55	1	1			25-27	34-36
Mo	Al	Cu	Nb	Ti	W	Ce
					4-5.5
N	Co	Pb	B	Other
	14-16			Nb/Ta 0.7-1.3

Mechanical Properties of steel grade Thermax 638

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)
485 (≥)	324 (≥)	13	44	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	234

Physical Properties of steel grade Thermax 638

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
44	-	-			0.33	-
539	587	-	31.3	141		-
949	-	33	24.2			122	141

Heat Treatment of steel grade Thermax 638

Heat treated : 1233°C - 1492°C

Technological Curves of steel grade Thermax 638

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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Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy