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ER 209

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B 649 R20033 ER 209
#R-20

Description

USA AMS SFA-5.9/SFA-5.9M, ER 209 Specialsteel Bare Stainless Steel Welding Electrodes and Rods and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: ER 209
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel ER 209 Precipitation-Hardening AMS USA Bare Stainless Steel Welding Electrodes and Rods

Chemical composition(mass fraction)(wt.%) of the ER 209

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Nb
≤0.12 ≤0.30 ≤0.80 ≤19.00 ≤14.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.60

Mechanical Properties of steel grade ER 209

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)
448 (≥) 392 (≥) 31 22 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical Properties of steel grade ER 209

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
43 - -     0.43 -  
594 379 - 34.3 231   -  
447 - 41 44.2   432 224

Heat Treatment of steel grade ER 209

Heat treated : 1848°C - 1929°C

Technological Curves of steel grade ER 209

Cross Reference Table (Equivalent Grade) of ER 209

Grade Standard Country Application
R-20
25Cr-20Ni
25Cr-20Ni+
29Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
29Cr-20Ni
29Cr-20Ni
29Cr-20Ni

Relevant standard of ER 209

SFA-5.9/SFA-5.9M Bare Stainless Steel Welding Electrodes and Rods SFA-5-9-SFA-5-9M.pdf
B 649 R20033 ER 209
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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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