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SA-29 Grade 4620

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SA-29 Grade 4615 SA-29 Grade 4621
#29-4

Description

USA AMS SA-29/SA-29M, SA-29 Grade 4620 Specialsteel Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-29 Grade 4620
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-29 Grade 4620 Precipitation-Hardening AMS USA Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for

Chemical composition(mass fraction)(wt.%) of the SA-29 Grade 4620

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 SA-29 Grade 4620

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)
554 (≥) 666 (≥) 31 32 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade SA-29 Grade 4620

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
41 - -     0.24 -  
328 895 - 22.3 114   -  
895 - 23 14.2   124 114

Heat Treatment of steel grade SA-29 Grade 4620

Heat treated : 1398°C - 1581°C

Technological Curves of steel grade SA-29 Grade 4620

Cross Reference Table (Equivalent Grade) of SA-29 Grade 4620

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 SA-29 Grade 4620

SA-29/SA-29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for SA-29-SA-29M.pdf
SA-29 Grade 4615 SA-29 Grade 4621
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Jiangyou Longhai Special Steel Co.,Ltd.

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