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A 955 XM-29 Grade 420

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A 803 Grade 29-4-2 A 959 Type 29-4-2
#29-4-2

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 ≤ ≥ ≤ ≥ 2.00 -2.50 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)
626 (≥) 769 (≥) 34 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

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
44 - -     0.12 -  
521 313 - 11.3 134   -  
346 - 11 23.2   242 332

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

Heat treated : 1327°C - 1443°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
29-4-2
29-4-2
29-4-2
29-4-2
29-4-2(S44800)

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 803 Grade 29-4-2 A 959 Type 29-4-2
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