304 / 304L Stainless Instrumentation Tubing

These grades of austenitic stainless steels are the most versatile and widely used stainless steels. They exhibit excellent corrosion resistance to a wide range of corrosive environments. Type 304 and 304L grades exhibit good machinability and have excellent weld-ability characteristics with or without the addition of filler metals.

Stock Size Range and Specifications:

Welded product
Seamless product
OD:
1/4" through 1/2"
Wall:
.035 through .065
OD:
1/4" through 1/2"
Wall:
.035 through .065
Specifications: ASTM A269, ASTM A249, ASME SA249
Specifications: ASTM A269, ASTM A213, ASME SA213
Typical Chemical Composition % (max values, unless noted)
Weight %CMnPSSiCrNi
304 .08 2.00 .045 .030 1.00 18.0-20.0 8.0-11.0
304L .030 2.00 .045 .030 1.00 18.0-20.0 8.0-12.0
Typical Mechanical Properties
GradeTensile
 UltimateYieldElongation
  KSI MPA KSI MPA %
304 75 515 30 205 35
304L 70 485 25 170 35
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