Special Products
BW Pipe Fittings
Forged Pipe Fittings
Steel Pipe Tube
Steel Sheet Plate
Round Bar
Welding Wire Electrodes
Prefabrication Pipe Spools
  • ASTM A269 UNS S31254 Steel Tubing
  • b163 seamless pipe
  • n06600 seamless pipe
  • B167 seamless pipe

ASTM A269 UNS S31254 Steel Tubing

  • Material Standard:ASTM A269
  • Grade No.:UNS S31254,254SMO,1.4547
  • Type:seamless & Welded tubes
  • End:Beveled End,Plain End


S31254, also 254SMO is a super Austenitic Stainless Steel. It is designed with a combination of impact toughness resistance to chloride stress corrosion cracking, and pitting and crevice corrosion with strength that is twice that of the stainless steel 300 series.

HT PIPE offers SMO 254 Stainless Steel Seamless Pipe and Supply ASTM A269 SMO 254 Stainless Steel Seamless Pipe austenitic chromium-nickel stainless steel pipe, also the standard ASTM A213, and ASTM A312.  We Supply UNS S31254 Stainless Steel Seamless Tubes and 254smo welded tubes in ASTM A269 and Grades in 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L etc. Manufacturing ASTM A269 UNS S31254, SMO 254, 254SMO, WN.R 1.4547 Stainless Steel Seamless and welded Pipes in China.

S31254 seamless and welded Tubes Chemical Composition:
Grade UNS C≤ Mn P≤ S≤ Si≤ Cr Mo Ni
254SMO S31254 0.02 1 0.03 0.01 0.8 19.5-20.5 6.0-6.5 17.5-18.5

254SMO seamless and welded Tubes Mechanical Properties

Mechanical properties

Tensile, min, ksi[MPa]

Yield, min, ksi[MPa]

Elongation, %(min)

Hardness, HB(max)






1.4547 seamless and welded Tubes Equivalent Grades
SMO 254 1.4547 S31254 Z1 CNDU 20.18.06Az X1CrNiMoCuN20-18-7

The ASTM A269 standard Specification
ASME SA269 /ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
Material Grade TP304 S30400      
TP304L S30403      
TP304LN S30453      
TP316 S31600      
TP316L S31603      
TP316LN S31653      
TP317 S31700      
TP321 S32100      
TP347 S34700      
TP348 S34800      
TPXM-10 S21900      
TPXM-11 S21904      
TPXM-19 S20910      
TPXM-29 S24000      
S31254 S31725      
S31726 S30600      
S24565 S32654      
NO8367 S35045      
NO8926 NO8904      
Size 1/2''~48''
Thickness SCH5~SCHXXS
End Beveled End,Plain End
Length As per your requirement.
Packing Export Standard packing or as per your requirements.

Please fill in your procurement needs and contact information

  • * Your Mail :
  • Your Tel :
  • Your Name :
  • Your Company :
  • * Your inquiry :