Seamless 654SMO Super Stainless Steel Pipe 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 : 6-706MM③ THICKNESS RANGE: 1-48MM
|
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 Pipe 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.
TP904L Seamless Stainless Steel Pipe is a high-performance tube designed to handle corrosive and high-pressure environments. Known for their excellent corrosion resistance, strength, and durability, they are ideal for use in harsh piping systems. 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
TP304H Seamless Stainless Steel Pipe 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
TP316Ti Seamless Stainless Steel Pipe is a high-performance tubing solutions known for their excellent resistance to corrosion, heat, and mechanical stress. These tubes are specially alloyed with titanium to enhance strength and stability at elevated temperatures, making them suitable for demanding environments. ① STANDARD: EN10216-5/ASTM A312/ ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-1016 MM③ THICKNESS RANGE: 1-65 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
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