ASTM A376 TP316 Austenitic Seamless Steel Pipe

ASTM A376 TP316 Steel Pipe covers seamless austenitic steel pipe intended for high-temperature service.

Description

ASTM A376 TP316 Austenitic Steel Pipe
Standard:ASTM A376/A376M
Standard Specification for
Seamless Austenitic Steel Pipe for High-Temperature Service
ASTM A376 TP316 Steel Pipe covers seamless austenitic steel pipe intended for high-temperature service.
ASTM A376 TP316 Seamless Austenitic Steel Pipe was originally developed for use for piping in the central stations of electric-power generating thermal plants. However, its use is not restricted to such applications and it may be used in other applications for which the attributes ofthe materials
Materials and Manufacture
Manufacture—pipe may be either hot finished or cold finished, with a suitable finishing treatment, where necessary.
Heat Treatment:
All pipe shall be furnished in the heat-treated condition unless the order specifically states that no final heat treatment shall be applied. When the order is furnished without final heat treatment, each pipe shall be stenciled “HT-O.”
ASTM A376 TP316 Seamless Austenitic Steel Pipe, heat treatment shall consist of heating to a minimum temperature of 1900 °F [1040 °C] and quenching in water or rapidly cooling by other means.
The purchaser may specify controlled structural or special service characteristics which shall be used as a guide for the most suitable heat treatment. If the final heat treatment is at a temperature under 1900 °F [1040 °C], each pipe shall be stenciled with the final heat treatment temperature in degrees Fahrenheit or Celsius after the suffix “HT.”
Chemical Composition
Grade UNS
Designation
Composition, %
Carbon Manganese Phosphorus Sulfur Silicon Nickel Chromium Molybdenum
TP316 S31600 0.08 2.00 0.045 0.030 0.75 11.0-14.0 16.0–18.0 2.00–3.00
Mechanical Properties
Grade Tensile A strength,
min, ksi [MPa]		 Yield strength
min,ksi[MPa]		 Elongation in 2 in. or 50 mm (or 4D) min, %
Longitudinal Transverse
TP316 75[515] 30[205] 35 25

Tests Required

Hydrostatic Test
Nondestructive Electric Test
Transverse Test
Longitudinal Tension Test
Flattening Test