ASTM A269 TP304 Stainless Steel Tubing

We are a ASTM A269 TP304 stainless steel tubing manufacturer, with a large range of sizes, both cold drawn welded and seamless tubing are offered in accordance with ASTM A269, TP304 stainless steel has multiple properties to meet various applications.

ASTM A269 TP304 Tubing Specifications

Standard ASTM A269
Grade TP304
Tubing type Welded tubing
Seamless tubing
Finishes Annealing pickling
Bright Annealing
Outside diameter 6.35 mm to 127 mm
Thickness 0.51 mm to 8 mm

ASTM A269 Specification

ASTM A269 specification covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion resisting and low or high temperature service, it is a common standard for stainless steel tubing, tubing is usually used in structure and machining purpose.

Heat Treatment

All tubing should be in solution condition, annealing is a critical procedure, it improves material properties, making tubing easy to fabricate and further processing, for TP304 stainless steel, minimum solution temperature should be 1040 degree, then rapidly cooling.

Dimensions Tolerances

Stainless steel tubing dimensional permissible variations is controlled conforming to ASTM A260 specification, we offer close tolerance for special use, for example, instrumentation tubing usually requires tight tolerance.

Outside Diameter OD Tolerance Wall Thickness Length
up to 1/2 ±0.005 OD<1/2, ±15%
OD≥1/2, ±10%
OD<1-1/2, +1/8 -0
OD≥1-1/2, +3/16, -0
1/2 to 1-1/2, excl ±0.005
1-1/2 to 3-1/2, excl ±0.010
3-1/2 to 5-1/2, excl ±0.015
5-1/2 to 8, excl ±0.030
8 to 12, excl ±0.040
12 to 14, excl ±0.050

* Value unit is inch.

TP304 Stainless Steel

TP304 stainless steel is noted Austenitic steel, it is the most used stainless steel because of excellent characteristics, it has good properties to resist corrosion, and TP304 grade has good weldability and forming properties to meet many conditions.

TP304 Stainless Steel Chemical Composition, %

Grade C Si Mn Cr Ni Mo S P Fe
TP304 0,08 1,0 2 18 – 20 8 – 11 0,03 0,045 Bal

TP304 Stainless Steel Mechanical Properties, min

Grade Tensile strength(Mpa) Yield point(Mpa) Elongation(%) Hardness(HRB) Solution temperature
TP304 515 205 35 90 1040 degree

ASTM A269 TP304 Stainless Steel Tubing

We offer ASTM A269 TP304 stainless steel tubing for many industries, depending on specific use, welded and seamless can be selected on request, sometimes, dual certificate ASTM A213/A269 is for seamless tubes, ASTM A249/A269 for welded tubes.

Our team ensure tubing high quality, a complete of tests are conducted as ASTM A269 standard, tubing can withstand high pressure and temperature.

ASTM A269 TP304 Stainless Steel Tubing