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SA-803 29-4-2

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SA-803 29-4 SA-803 29-4C
#29-4

Description

USA AMS SA-803/SA-803M, SA-803 29-4-2 Specialsteel Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-803 29-4-2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-803 29-4-2 Precipitation-Hardening AMS USA Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the SA-803 29-4-2

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-803 29-4-2

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)
519 (≥) 494 (≥) 24 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade SA-803 29-4-2

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
23 - -     0.13 -  
272 691 - 32.3 131   -  
127 - 23 34.2   423 122

Heat Treatment of steel grade SA-803 29-4-2

Heat treated : 1475°C - 1819°C

Technological Curves of steel grade SA-803 29-4-2

Cross Reference Table (Equivalent Grade) of SA-803 29-4-2

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-803 29-4-2

SA-803/SA-803M Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes SA-803-SA-803M.pdf
SA-803 29-4 SA-803 29-4C
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Jiangyou Longhai Special Steel Co.,Ltd.

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