ASTM A358 CLASS 1 TP316L Stainless Steel Welded Pipes for Refineries
Composition: Compared to TP316, TP316L has a lower carbon content, which enhances its resistance to sensitization—sensitization refers to the process that can lead to corrosion under certain conditions. Its composition typically includes elements such as chromium, nickel, and molybdenum, and sometimes small amounts of titanium and manganese.
Corrosion Resistance: Like other austenitic stainless steels, TP316L exhibits excellent corrosion resistance in a variety of environments, including corrosive acids, chloride-containing solutions (such as seawater), and high-temperature applications.
TP316L stainless steel pipes are widely used in industries with extremely high requirements for corrosion resistance, strength, and high-temperature performance. These applications include chemical and petrochemical processing, food processing, marine environments, heat exchangers, and various high-temperature applications.
What is TP316L Stainless Steel Pipes
Stainless Steel 316L tubing is made from austenitic stainless steel with chromium, nickel, and molybdenum in its composition, with a carbon content below the 316 grade. The low carbon content of this tubing makes it easier to use in welding applications.
316L stainless steel tubing is suitable for use in aqueous environments where chloride ions are highly corrosive. Because of the molybdenum content of the material, it has a lower corrosion rate in chloride-rich environments. Steel pipe is classified as welded, seamless and fabricated.
EQUIVALENT GRADES FOR STAINLESS STEEL TP316 / 316L CLASS 1 EFW PIPES
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | - | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
STAINLESS STEEL 316, 316L CLASS 1 EFW PIPES CHEMICAL COMPOSITION
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 11.00 - 14.00 | 67.845 min |
SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 10.00 - 14.00 | 68.89 min |
MECHANICAL PROPERTIES OF STAINLESS STEEL TP316 / 316L CLASS 1 EFW PIPES
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
APPLICATION
RefineriesRefineries
- Refineries
- Petrochemicals Industry
- Oil&Gas Industry
- Mining
- Construction
- Automobile
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