STAINLESS STEEL

SANITARY PIPES & TUBES

ASTM A270 specification covers grades of seamless, welded, and heavily cold worked welded austenitic and ferritic/austenitic stainless steel sanitary tubing intended for use in the dairy and food industry and having special surface finishes.

ASTM A270’s emphasis is on the surface finish of tubing, which can be specified in a number of ways to a number of different finishes. Polish tubing meets or exceeds the 3-A standards with an ID polish of a 20 Ra on the Inside of the Tube and a 150 Grit or 32 Ra on the Outside of the tube.

Welded sanitary stainless steel tubing is manufactured using automatic TIG welding technology, all the tubing detected by Eddy current test, weld ends corner cut at 90 degrees to the tube length for automatic welding, tubes thoroughly rinsed with de-ionized water with no residue, bright annealed with 99.99 percent hydrogen gas at the minimum temperature level of 1040 degrees C and rapidly quenched to achieve the maximum cold-finish effect.

APPLICATION AREA

Pharmaceutical equipment, food & beverage industry, portable water, bioengineering, chemical engineering, air purification, aviation, and nuclear industry.

STAINLESS SANITARY PIPES & TUBES

Specifications

DIMENSIONS

S.S. Welded Sanitary Pipe:

      Outer Diameter: Φ8-Φ850mm (Minimum - Maximum)

S.S. Seamless Sanitary Pipe:

      Outer Diameter: Φ6 -Φ219mm (Minimum - Maximum)

FEATURES

Outer and insider 180Grit, 320 Grit, 400 Grit. Or mirror polished
Beautiful and smooth surface (400# - 800#), suitable for food grade tubes and sanitary tubes.

STANDARDS

ASTM A270, ISO 2037, DIN 11850

MAIN GRADES

Austenitic Stianless Steel

Super Austenitic Stianless Steel

Duplex & Super Duplex Stianless Steel

Precipitation Hardening Stainless Steel

Ferritic Stainless Steel

Martensitic Stainless Steel