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XM-18

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216L S21603
#XM-18

Description

USA UNS SAE J 405 (1998) , XM-18 Specialsteel Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: XM-18
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel XM-18 Austenite UNS USA Chemical compositions of SAE wrought stainless steels

Chemical composition(mass fraction)(wt.%) of the XM-18

C Si Mn P S Cr Ni Mo N
≤0.03 ≤0.75 7.50 -9.00 ≤0.045 ≤0.03 17.5 -22.0 5.00 -7.00 2.00 -3.00 0.25 -0.50

Mechanical Properties of steel grade XM-18

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
494 (≥) 283 (≥) 44 22 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade XM-18

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
32 - -     0.43 -  
249 731 - 21.3 332   -  
578 - 42 31.2   224 144

Heat Treatment of steel grade XM-18

Heat treated : 1199°C - 1537°C

Technological Curves of steel grade XM-18

Cross Reference Table (Equivalent Grade) of XM-18

Grade Standard Country Application
216LXM-18
XM-18

Relevant standard of XM-18

SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels SAE-J-405--(1998)-.pdf
216L S21603
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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...

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