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A 803 Grade 18-2

Favorite Datasheet
A 213 18Cr-2Mo A 872 J93183
#318

Description

USA SAE A 803/A 803M (2012), A 803 Grade 18-2 Specialsteel Welded Ferritic Stainless Steel Feedwater Heater Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 803 Grade 18-2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 803 Grade 18-2 Precipitation-Hardening SAE USA Welded Ferritic Stainless Steel Feedwater Heater Tubes

Chemical composition(mass fraction)(wt.%) of the A 803 Grade 18-2

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo V
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 13.00 -15.00 17.00 -19.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ 1.75 -2.75 ≤ ≥

Mechanical Properties of steel grade A 803 Grade 18-2

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)
541 (≥) 592 (≥) 22 44 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade A 803 Grade 18-2

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
43 - -     0.22 -  
837 548 - 33.3 113   -  
585 - 13 24.2   434 341

Heat Treatment of steel grade A 803 Grade 18-2

Heat treated : 1517°C - 1427°C

Technological Curves of steel grade A 803 Grade 18-2

Cross Reference Table (Equivalent Grade) of A 803 Grade 18-2

Grade Standard Country Application
1.4318
1.4318
1.3318
S31803
318
S31803
ASTM J93183
UNS W50318
UNS W21318
AWS E318
AWS ER318
1.3318
1.3318
2205(S31803)
S31803
318S17
318S17
1.4318
1.4318

Relevant standard of A 803 Grade 18-2

A 803/A 803M (2012) Welded Ferritic Stainless Steel Feedwater Heater Tubes A-803-A-803M-(2012).pdf
A 213 18Cr-2Mo A 872 J93183
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