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A 249 S20910

Favorite Datasheet
A 240 S20910 A 269 S20910
#Nitronic #50(XM-19) #S20910

Description

USA SAE A 249/A 249M (2010), A 249 S20910 Specialsteel Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 249 S20910
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 249 S20910 Austenite SAE USA Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the A 249 S20910

C Mn Si P S Cr Ni Mo N Nb V
≤0.06 4.00 -6.00 ≤1.00 ≤0.04 ≤0.03 20.50 -23.50 11.50 -13.50 1.50 -3.00 0.20 -0.40 0.10 -0.30 0.10 -0.30

Mechanical Properties of steel grade A 249 S20910

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)
934 (≥) 545 (≥) 24 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade A 249 S20910

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
32 - -     0.42 -  
755 983 - 41.3 223   -  
158 - 14 42.2   131 442

Heat Treatment of steel grade A 249 S20910

Heat treated : 1741°C - 1561°C

Technological Curves of steel grade A 249 S20910

Cross Reference Table (Equivalent Grade) of A 249 S20910

Grade Standard Country Application
NITRONIC 20
NITRONIC 30
NITRONIC 32
NITRONIC 33
NITRONIC 40
NITRONIC 50
NITRONIC 60
S20910
S20910
S20910
S20910
S20910
S20910
S20910

Relevant standard of A 249 S20910

A 249/A 249M (2010) Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes A-249-A-249M-(2010).pdf
A 240 S20910 A 269 S20910
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