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A 955 XM-29 Grade 420

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A 955 XM-29 Grade 40 A 959 Type 29-4
#29-4

Description

USA SAE A 955/A 955M (2012), A 955 XM-29 Grade 420 Specialsteel Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 955 XM-29 Grade 420
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 955 XM-29 Grade 420 Precipitation-Hardening SAE USA Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement

Chemical composition(mass fraction)(wt.%) of the A 955 XM-29 Grade 420

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.01 ≤0.20 ≤0.30 ≤ ≥ ≤ ≥ ≤0.15 28.00 -30.00 ≤ ≥ ≤0.15 ≤ ≥ ≤ ≥ ≤0.02 3.50 -4.20

Mechanical Properties of steel grade A 955 XM-29 Grade 420

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)
228 (≥) 762 (≥) 23 43 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade A 955 XM-29 Grade 420

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
12 - -     0.42 -  
918 854 - 34.3 441   -  
399 - 43 11.2   324 243

Heat Treatment of steel grade A 955 XM-29 Grade 420

Heat treated : 1938°C - 1346°C

Technological Curves of steel grade A 955 XM-29 Grade 420

Cross Reference Table (Equivalent Grade) of A 955 XM-29 Grade 420

Grade Standard Country Application
29-4
29-4C
29-4-2
29-4
29-4-2
29-4C
29-4
29-4-2
29-4
29-4-2
29-4C(S44735)
29-4-2(S44800)
X2CrMoTi29-4
X2CrMoTi29-4

Relevant standard of A 955 XM-29 Grade 420

A 955/A 955M (2012) Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement A-955-A-955M-(2012).pdf
A 955 XM-29 Grade 40 A 959 Type 29-4
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