Product Introduction
Seamless 1.4571 Stainless Steel Pipe. TP316Ti (UNS S31635, EN 1.4571) is a titanium-stabilized austenitic stainless steel renowned for its enhanced corrosion resistance and high-temperature performance. As a variant of the 316 stainless steel family, TP316Ti incorporates titanium (Ti: 5×(C%+N)-0.7), which stabilizes the alloy against carbide precipitation during welding and high-temperature service. This makes it particularly suitable for applications where weldability and long-term corrosion resistance are critical.
Manufactured to standards including ASTM A213, ASTM A312, and GOST, TP316Ti seamless pipes and tubes undergo precision processing to ensure uniform wall thickness, mechanical consistency, and dimensional accuracy. The alloy’s unique composition—combining chromium (16.00–18.00%), nickel (10.00–14.00%), molybdenum (2.00–3.00%), and titanium—delivers a balance of strength, ductility, and resistance to a wide range of corrosive media.
Zhejiang Xintongda Special Steel Manufacturing Co., Ltd. provides TP316Ti products that meet the highest quality benchmarks, offering reliable solutions for industries ranging from chemical processing to marine engineering.
Chemical Composition
Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Other |
316 | ≤0.08 | ≤2.0 | ≤0.045 | ≤0.03 | ≤1.0 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | - | - |
316L | ≤0.035 | ≤2.0 | ≤0.045 | ≤0.03 | ≤1.0 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | - | - |
316H | 0.04-0.10 | ≤2.0 | ≤0.045 | ≤0.03 | ≤1.0 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | - | - |
316Ti | ≤0.08 | ≤2.0 | ≤0.045 | ≤0.015 | ≤0.75 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | ≤0.1 | Ti:5×(C%+N)-0.7 |
316N | ≤0.08 | ≤2.0 | ≤0.045 | ≤0.03 | ≤2.0 | 16.0-18.0 | 10.0-13.0 | 2.0-3.0 | 0.1-0.16 | - |
316LN | ≤0.035 | ≤2.0 | ≤0.045 | ≤0.015 | ≤0.015 | 16.0-18.0 | 10.0-13.0 | 2.0-2.5 | 0.1-0.16 | - |
Mechanical Properties
Grade | Tensile Strength ksi(MPa) | Yield Strength ksi(MPa) | Elongation,% | Hardness Brinell/Vickers | Hardness Rockwell |
316 | ≥75(515) | ≥30(205) | ≥35 | ≤192HBW/200HV | ≤90HRB |
316L | ≥70(485) | ≥25(170) | ≥35 | ≤192HBW/200HV | ≤90HRB |
316H | ≥75(515) | ≥30(205) | ≥35 | ≤192HBW/200HV | ≤90HRB |
316Ti | ≥75(515) | ≥30(205) | ≥35 | ≤192HBW/200HV | ≤90HRB |
316N | ≥80(550) | ≥35(240) | ≥35 | ≤192HBW/200HV | ≤90HRB |
Applications
Food processing equipment Brewery equipment,
Chemical and petrochemical equipment,
Laboratory benches and equipment
Beach deck coverings,
Shoreline covers,
Boat fasteners,
Chemical containers,
Heat exchangers,
Mining sieve,
Springs,
Medical implants.
Material Summary
TP316Ti /1.4571/UNSS31635, is a titanium-stabilized, molybdenum-alloyed austenitic chromium-nickel steel with improved machinability has similar characteristics to AISI 316L, but the TP 316Ti has better mechanical properties and strength at high temperatures. TP 316Ti (1.4571, UNS S31635) due to the addition of titanium shows higher corrosion resistance.
TP 316Ti (1.4571, UNS S31635) is generally considered but is not resistant to hot sea water. Hot chloride environments may cause pitting and crevice corrosion. TP 316Ti (1.4571, UNS S31635) HEAT RESISTANCE 316 exhibits good resistance to oxidation in continuous service to a temperature of 870 ° C and a temperature of 925 ° C. However, if corrosion resistance to water is required, continuous use at 425-860 ° C is not recommended. In this case, 316L is recommended due to resistance to carbide precipitation. When high temperatures are required at temperatures above 500 ° C, class 316H is recommended.
