Seamless 654SMO Super Stainless Steel Tube UNS S32654, W. Nr. 1.4652) is a high-performance super austenitic stainless steel alloy, often classified as a "super stainless steel" due to its exceptional corrosion resistance and mechanical strength. Developed for the most demanding environments, it features unusually high levels of chromium (24%), molybdenum (7-8%), nickel (23%), and nitrogen (0.45-0.55%), enabling pitting resistance equivalent number (PREN) values exceeding 50—comparable to top nickel-based alloys like Hastelloy. The seamless design ensures superior integrity for high-pressure, high-temperature, and corrosive applications, avoiding weld-related vulnerabilities. It is twice as strong as conventional austenitic grades like 304 or 316 while maintaining excellent ductility and toughness.① STANDARD: ASTM A312/EN10216-5/GBT14976.② OD RANGE : 6.35-257MM③ THICKNESS RANGE: 0.89-35MM
|
C |
Si |
Mn |
Ni |
P |
S |
Cr |
Mo |
N |
Cu |
|
≤0.02 |
≤0.50 |
2.00-4.00 |
21.00-23.00 |
≤0.03 |
≤0.005 |
23.00-25.00 |
7.00-8.00 |
0.45-0.55 |
0.30-0.16 |
|
Tensile strength (MPa) |
0.2% proof strength (MPa) |
Min. elongation at fracture (%) |
Brinell hardness (HB) |
|
≥750 |
≥430 |
≥40 |
≤310 |
|
Standard |
Outside Diameter |
Thickness |
Length |
||||
|
ASTM A312 |
|
O.D. ≦ |
48.26mm |
+0.40mm, |
-0.80mm |
Nominal Thickness ±12.5% |
0mm to +6mm |
|
48.26mm < |
O.D. ≦ |
114.3mm |
±0.80mm, |
|
|||
|
114.3mm < |
O.D. ≦ |
219.08mm |
+1.60mm, |
-0.80mm |
|||
|
219.08mm < |
O.D. ≦ |
457.2mm |
+2.40mm, |
-0.80mm |
|||
|
457.2mm < |
O.D. ≦ |
660.4mm |
+3.20mm, |
-0.80mm |
|||
|
660.4mm < |
O.D. ≦ |
836.6mm |
+4.00mm, |
-0.80mm |
|||
|
863.6mm < |
O.D. |
|
+4.80mm, |
-0.80mm |
|||
Seamless 654SMO Super Stainless Steel Tube UNS S32654, W. Nr. 1.4652) is a high-performance super austenitic stainless steel alloy, often classified as a "super stainless steel" due to its exceptional corrosion resistance and mechanical strength. Developed for the most demanding environments, it features unusually high levels of chromium (24%), molybdenum (7-8%), nickel (23%), and nitrogen (0.45-0.55%), enabling pitting resistance equivalent number (PREN) values exceeding 50—comparable to top nickel-based alloys like Hastelloy. The seamless design ensures superior integrity for high-pressure, high-temperature, and corrosive applications, avoiding weld-related vulnerabilities. It is twice as strong as conventional austenitic grades like 304 or 316 while maintaining excellent ductility and toughness.
654SMo (S32654, 1.4652) super austenitic stainless steel features very good local corrosion resistance, good pitting resistance and good stress corrosion resistance under seawater, aeration, gap and low speed scouring conditions. It can be used as a good substitute to nickel-based alloys and titanium alloys. When it comes to high-temperature resistance or corrosion resistance, it is also superior to 904L and 254SMo.
TP309 Seamless Stainless Steel Pipe are high-performance tubing solutions designed for superior heat and corrosion resistance in demanding environments. ① STANDARD: ASTM A312/ ASTM A249/ ASTM A269/ EN10216-5/GOST 9940 /GOST 9941...② OD RANGE : 6-1016 MM③ THICKNESS RANGE: 1-65 MM
TP316L Seamless Stainless Steel Tube are precision-engineered from high-quality austenitic stainless steel, offering superior corrosion resistance, durability, and strength for demanding environments.① STANDARD: ASTM A213/EN10216-5/ ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-257MM③ THICKNESS RANGE: 1-35 MM
TP317L Seamless Stainless Steel Pipe is a premium-grade, low-carbon, molybdenum-alloyed austenitic tube designed for superior corrosion resistance in aggressive environments. ① STANDARD: ASTM A312/ ASTM A249/ ASTM A269/ EN10216-5/GOST 9940 /GOST 9941...② OD RANGE : 6-1016 MM③ THICKNESS RANGE: 1-65 MM
TP316LN Seamless Stainless Steel Tube is a high-performance tubing product known for its excellent corrosion resistance, superior strength, and durability under extreme conditions. ① STANDARD: ASTM A213/ EN10216-5/ ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-257MM③ THICKNESS RANGE: 1-35 MM
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