Stainless Steel Pipe Standards: ASTM A321, ASTM A213, ASTM A269, ASME SB677
Duplex stainless steel pipe standards: ASTM A789/ ASME SA 789. ASTM A790/ ASME SA 790
Material: AISI 304, 304L, 316, 316L
Outer Diameter: 5.8 – 508mm
Wall Thickness: 0.3 – 50mm
Finishing: Annealed and Pickled / Polished (320 Grit)
Stainless Steel Pipe Using Condition: Automobiles/Construction industries/Military and Nuclear Weapons/Household Equipment/Oil, Chemical Industry, Medical, Food, Light Industry, Apparatus, and Structural Parts, etc.


    Stainless steel pipe is a kind of hollow and longitude steel, economic steel section is round shape. Stainless steel pipe and tube have been widely used in the oil, chemical industry, medical, food, light industry, equipment and apparatus, and structural parts, etc.

    Steel Pipe Inc maintains a large stock of stainless steel tubes to be needed in high-performance hydraulic line application. Seamless cold-drawn tubes are being constantly offered to clients due to their quality and cleanliness. Seamless cold-drawn tubes are precise in dimension and free of scale.

    Steel Pipe Inc keeps an ex-stock of stainless steel tubes in dual grade which is SS316/316L with seamless quality. The stainless steel tubes are in accordance with ASTMA269/A213.

  • Stainless Steel Piping Specification

    Steel Pipe Inc supply range for the stainless steel pipe and tube:
    Standards: ASTM A321, ASTM A213, ASTM A269, ASME SB677
    Duplex stainless steel pipe standards: ASTM A789/ ASME SA 789. ASTM A790/ ASME SA 790
    Material: AISI 304, 304L, 316, 316L
    Outer Diameter: 5.8 – 508mm,
    Wall Thickness: 0.3 – 50mm


    1. Seamless Hot Rolling Processes
    Round Pipe Billet → Heating → Perforation → Three Roll Skew Rolling, Continuous Rolling or Extrusion → Off Pipe → Sizing (Or Reducing Diameter)→ Cooling → Billet → Straightening → Water Pressure Test ( Or Flaw Detection) → Marking → Storage
    2. Seamless Cold Rolling (Cold-drawn) Processes
    Round Pipe Billet → Heating → Perforation → Head → Annealing → Pickling → Oil (Copper) → Multi-Pass Drawing (Cold Rolling) → Billet → Heat Treatment → Straightening → Water Pressure Test → Marking → Storage
    3. Longitudinal welding (Straight seam welding) Processes
    Including ERW, EFW.

    stainless steel pipe

  • Methods of Bending Stainless Steel Pipe

    Stainless Steel Pipe could be bent in a number of ways. However, it is a must to ensure that adequate precautions are followed to avoid carbon contamination on the steel throughout the procedure. Using a section bender or three-roll bender is one of the simplest ways to bend this material. This technique is commonly utilized when the metal has a huge radius.

    A rotary-draw bender can be used to bend stainless steel tubes with narrow radiuses. In particular, Mandrel Tube Bending is the process of bending stainless steel tubes with a rotary-draw bender.

    You should also take into account that a bending error might reduce the surface area of the tubing, making installation more difficult.

  • Stainless Steel Pipe Application

    here is a wide variety of functions for Stainless Steel Tubes (SS316/SS316L) which could apply in different industries as follows:

    With their excellent corrosion resistance, durability, and dent resistance, stainless steel tube is becoming more popular in the automotive sector. Moreover, It also contributes to the total weight of the completed automobile.

    According to the Automotive Stainless Tube Market Size, Share, and Trends Analysis Report, the worldwide automotive stainless steel tube market was valued at USD 3.37 million in 2015, with a forecast growth rate of 3.9 percent from 2016 to 2024. It may be found in a variety of places, including aircraft hydraulic lifts, diesel spark plugs, filter systems, fuel lines, motor block heaters, and car mufflers.
    ​ ​
    Construction industries
    Stainless steel tubes are utilized for filtration in water corporation systems. These tubes are utilized in the construction industry to provide structural support for building projects. In general, stainless steel tubes are critical for various milling machines, production lines, and other applications. ​

    Military and nuclear weapons
    Stainless steel tubes are also applied in the manufacture of some military and nuclear weapons.

    Household Equipment
    With their anti-rust characteristics, stainless steel tubes are widely used in numerous home equipment. For example, stainless steel is frequently used in gas lines to avoid leakage. Stainless Steel pipes are also found in refrigerators and other cooling devices. ​

ASTM A312 – For high temperature and general corrosive

The ASTM A312 standard specification for seamless, welded, and heavily cold worked austenitic stainless steel pipes. Stainless steel pipes and tubes are widely in a sulfuric acid storage tank in the phosphate fertilizer industries.

Fluorosilicic /acid reactor phosphoric acid plant; Chlorate Crystallizer in the production of fertilizer; Ventilation system in a pharmaceutical factory; Solvent recovery filter, condenser, pipeline; Bleaching equipment and filter in the pulp and paper industry; pipelines and water collecting system in offshore platforms; multi-stage flash distillation, low-temperature multi-effect desalination; seawater condenser for power plant and so on.

Chemical Composition for ASTM A312 TP304 and TP316

astm a312 pipe chemical composition

Mechanical Properties for ASTM A312 TP304 and TP316

Stainless Steel Tubes Specifications

Heat Treatment Methods for ASTM A312 TP304 and TP316

Stainless Steel Tubes Specifications

Permitted Tolerance in Wall Thickness in ASTM A312

Stainless Steel Tubes Specifications

t = Nominal Wall Thickness
D = Ordered Outside Diameter