① STANDARD: ASTM A312/ ASTM A249/ ASTM A269/EN10216-5/ GOST 9940 /GOST 9941...② OD RANGE : 6-706MM③ THICKNESS RANGE: 1-65 MM
Grade |
C |
Si |
Mn |
P |
Cr |
Ni |
Mo |
N |
S |
Others |
254SMO |
≤ 0.02 |
≤0.80 |
≤1.00 |
≤ 0.03 |
19.50-20.50 |
17.50-18.50 |
6.00-6.50 |
0.18-0.22 |
≤0.01 |
Cu 0.50-1.00 |
Grade |
Tensile Strength |
0.2 % Yield Strength Rpt |
Elongation |
Hardness |
||
T#0.187”(5mm) |
T>0.187”(5mm) |
Brinell |
Rockwell |
|||
254SMO |
≥ 98ksi(675MPa) |
≥ 95ksi(655MPa) |
≥ 45ksi(310MPa) |
≥ 35% |
≤220HBW |
≤96HRB |
Marked Pipe Sample: XTD ASTM A312 UNS S31254 SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15
254 SMO is an austenitic stainless steel, whose chemical base consists of high amounts of molybdenum, chromium as well as nickel. Under some circumstances, the UNS S31254 SMO Seamless Pipe is considered to be a highly economical, yet commercially viable solution to applications that are prone to corrosion. In fact, the corrosion resistance properties of 250 SMO pipe is compared to nickel alloys.
It demonstrates outstanding resistance to pitting, crevice corrosion stress cracking, and corrosion fatigue uniform corrosion. 254 SMO is substantially stronger than the common austenitic grades, with strength nearly twice that of 300 series stainless steel. It is also characterized by high ductility and impact strength.
① STANDARD: ASTM A213/ ASTM A249/ ASTM A269/EN10216-5/ GOST 9940 /GOST 9941...② OD RANGE : 6-257MM③ THICKNESS RANGE: 1-35 MM
① STANDARD: ASTM A312/ EN10216-5/ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-1016 MM③ THICKNESS RANGE: 1-65 MM
① STANDARD: EN10216-5/ ASTM A312/ ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-762MM③ THICKNESS RANGE: 1-65 MM
① STANDARD: ASTM A312/ ASTM A249/ ASTM A269/EN10216-5/ GOST 9940 /GOST 9941...② OD RANGE : 6-812 MM③ THICKNESS RANGE: 1-65 MM
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