Available 24/7 at contact@steel-grades.com

SA-249 TP304LN

Description

USA AMS SA-249/SA-249M, SA-249 TP304LN Specialsteel Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SA-249 TP304LN
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SA-249 TP304LN Austenite AMS USA Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Chemical composition(mass fraction)(wt.%) of the SA-249 TP304LN

C Si Mn P S Cr Ni N
≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18.0 -20.0 8.00 -12.0 0.10 -0.16

Mechanical Properties of steel grade SA-249 TP304LN

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)
533 (≥) 832 (≥) 21 34 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade SA-249 TP304LN

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
14 - -     0.24 -  
213 266 - 32.3 244   -  
176 - 32 31.2   244 121

Heat Treatment of steel grade SA-249 TP304LN

Heat treated : 1593°C - 1594°C

Technological Curves of steel grade SA-249 TP304LN

Cross Reference Table (Equivalent Grade) of SA-249 TP304LN

Relevant standard of SA-249 TP304LN

SA-249/SA-249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes SA-249-SA-249M.pdf

Available Suppliers

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this SA-249 TP304LN?
  • List your company on S&G now? Join
  • Non-paying users only
Top