SS316L Butt Weld Fitting, A403 WP316L Equal Tee (seamless / Welded), B16.9 Standard

ASTM A403 Abstract

ASTM A403 WP316L covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. All fittings shall undergo heat-treatment.

A403 WP316L equal tee is a pipe fitting made from 316L stainless steel and designed according to the standards set by ASTM A403, which is the specification for wrought austenitic stainless steel pipe fittings. The "WP" in the material specification refers to welded and pressure-rated pipe fittings, while "316L" is a low-carbon variant of 316 stainless steel, ideal for high-corrosion environments.

Fitting Classes for WP Grades

A403 WP316L Fitting Chemical Composition

A403 WP316L Fitting Mechanical Properties

A403 WP316L Fittings Application

• Chemical and petrochemical industries (for pipelines carrying corrosive fluids)

• Marine environments (offshore and coastal pipelines)

• Food and beverage processing

• Pharmaceutical processing

• Water treatment plants

• Power generation (especially in nuclear or thermal plants)

• Oil and gas production (offshore, subsea, and refineries)