254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 Stainless Steels to EN 10028-7

254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 - Specification & Application

  • EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
  • EN 10088-1 - Stainless steels - Part 1: List of stainless steels
  • EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
  • EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
  • EN 10088-4 - Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
  • EN 10088-5 - Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
  • EN 10216-5 (2004) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
  • EN 10217-7 - Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
  • EN 10250-4 - Open die steel forgings for general engineering purposes - Part 4: Stainless steels
  • EN 10253-3 - Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
  • EN 10253-4 - Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
  • EN 10272 - Stainless steel bars for pressure purposes
  • EN 10296-2 (2005) - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
  • EN 10297-2 (2005) - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(wt.%) of 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 grade: to EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.020
Si - 0.70
Mn - 1.00
P - 0.030
S - 0.010
Cr 19.50 20.50
Mo 6.00 7.00
Ni 17.50 18.50
N 0.18 0.25
Cu 0.50 1.00

Mechanical properties of grade 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 grade: to EN 10028-7

Yield Strength,Rp 0.2(MPa)

Condition Min Max Similar Note
300

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note
650 850

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note
35

Reduction of area,(%)

Condition Min Max Similar Note

Hardness

Condition Type Min Max Similar Note
HB 260

Physical properties of grade 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 EN 10028-7

Modulus of elasticity, E Note
195 GPa
Thermal conductivity λ Note
14 W ⋅ m⁻¹ K⁻¹
Heat capacity cp20℃ Note
500 J ⋅ ​kg⁻¹ K⁻¹
Densityρ Note
8.10 kg/dm³
Annealing Note
1050 - 1150℃

254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 - Detail

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel, Stainless steel used in cryogenic, paper, chemical, petrochemical and refining industries, in power plants for heat exchangers, radiators, in aviation construction as aviation steel, screws, valves, heat exchangers, coolers, special tanks, pumps and pipelines.Steel resistant to intergranular corrosion in the sensitized and in the delivery conditions.

We can customize the production of 254SMO, X1CrNiMoCuN20-18-7, 1.4547, UNS S31254 grade, contact us for the best solution.
[email protected]