TP321 Seamless Stainless Steel Tube is a titanium-stabilized austenitic tube known for their excellent resistance to intergranular corrosion and superior high-temperature strength. These tubes are ideal for applications requiring stability at elevated temperatures, such as in heat exchangers, aerospace systems, and petrochemical industries. ① STANDARD: ASTM A213/ EN10216-5/ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...② OD RANGE : 6-257MM③ THICKNESS RANGE: 1-35 MM
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
Ti |
|
321 |
≤0.08 |
≤2.00 |
≤1.00 |
≤0.045 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
/ |
|
321H |
0.04-1.00 |
≤2.00 |
≤1.00 |
≤0.045 |
≤0.03 |
17.00-19.00 |
9.00-12.00 |
- |
4*(C+N)-0.70 |
|
Grade |
Tensile Strength ksi(MPa) |
Yield Strength ksi(MPa) |
Elongation (% in 50mm) |
Hardness |
|
|
Rockwell |
Brinell (HB) |
||||
|
321 |
≥75(515) |
≥30(205) |
≥35 |
≤90HRB |
≤192HBW |
|
321H |
≥75(515) |
≥30(205) |
≥35 |
≤90HRB |
≤192HBW |
|
Grade |
UNS No |
EN |
Gb |
JIS |
|
|
No |
Name |
||||
|
321 |
S32100 |
1.4541 |
X6CrNiTi18-10 |
0Cr18Ni11Ti |
SUS 321 |
|
321H |
S32109 |
1.4878 |
X10CrNiTi18-10 |
1Cr18Ni9Ti |
SUS 321H |
Good oxidation resistance in intermittent service to 900°C and in continuous service to 925°C. These grades perform well in the 425-900°C range, and particularly where subsequent aqueous corrosive conditions are present. 321H has higher hot strength, and is particularly suitable for high temperature structural applications.
Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.
Grade 321H is a modification of 321 with a higher carbon content, to provide improved high temperature strength.
Like other austenitic grades, 321 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.
Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500°C.
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
TP304/1.4301 /SUS304 Seamless Stainless Steel Pipe are a highly versatile and corrosion-resistant tubing solution used widely across construction, petrochemical, and automotive sectors. 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
TP347H Seamless Stainless Steel Pipe are high-performance austenitic stainless steel tubes stabilised with niobium, specifically designed for elevated temperature applications and enhanced creep resistance. 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
With a strong focus on precision and industry-leading standards, we ensure each TP314 Seamless Stainless Steel Pipe meets the highest performance. We utilize advanced manufacturing processes, including strict quality checks and annealing techniques, to guarantee durability and reliability. We have the largest inventory of providing quick access to a range of sizes and specifications for diverse industrial applications. With a commitment to excellence, our tubes are manufactured in accordance with international certifications, ensuring compliance with global standards. These seamless tubes are commonly used in heat exchangers, high-temperature furnaces, and other critical applications where corrosion resistance and high strength are essential. Our UNS S31400 tubes are also equivalent to global standards, ensuring compatibility across various markets.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
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