ASTM A554-08a

1.1 This specification covers welded stainless steel tubing for mechanical applications where appearance, mechanical properties, or corrosion resistance is needed. The grades covered are listed in Table 1.

1.2 This specification covers as-welded or cold-reduced mechanical tubing in sizes to 16 in. (406.4 mm) outside dimension, and in wall thicknesses 0.020 in. (0.51 mm) and over.

1.3 Tubes shall be furnished in one of the following shapes as specified by the purchaser: round, square, rectangular, or special.

1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.

1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

TABLE 1 Chemical Requirements

Grade	Composition, %
	Carbon, max	Manga- nese, max	Phos- phorus, max	Sulfur, max	Silicon, max	Nickel	Chromium	Molybdenum	Titanium	Columbium + Tantalum
Austenitic
MT-301	0.15	2.00	0.040	0.030	1.00	6.0-8.0	16.0-18.0	...	...	...
MT-302	0.15	2.00	0.040	0.030	1.00	8.0-10.0	17.0-19.0	...	...	...
MT-304	0.08	2.00	0.040	0.030	1.00	8.0-11.0	18.0-20.0	...	...	...
MT-304L	0.035A	2.00	0.040	0.030	1.00	8.0-13.0	18.0-20.0	...	...	...
MT-305	0.12	2.00	0.040	0.030	1.00	10.0-13.0	17.0-19.0	...	...	...
MT-309S	0.08	2.00	0.040	0.030	1.00	12.0-15.0	22.0-24.0	...	...	. . .
MT-309S-Cb	0.08	2.00	0.040	0.030	1.00	12.0-15.0	22.0-24.0	...	...	B
MT-310S	0.08	2.00	0.040	0.030	1.00	19.0-22.0	24.0-26.0	...	...	...
MT-316	0.08	2.00	0.040	0.030	1.00	10.0-14.0	16.0-18.0	2.0-3.0	...	...
MT-316L	0.035A	2.00	0.040	0.030	1.00	10.0-15.0	16.0-18.0	2.0-3. More ASTM standard pdf ASTM A909/A909M-06(2016) Standard Specification for Steel Forgings, Microalloy, for General Industrial Use $27.00 $54.00 Add to Cart ASTM F1793-97(2016)e1 Standard Specification for Automatic Shut-Off Valves (Also Known as Excess Flow Valves, EFV) for Air or Nitrogen Service $31.00 $62.00 Add to Cart ASTM F2503-20 Standard Practice for Marking Medical Devices and Other Items for Safety in the Magnetic Resonance Environment $34.00 $68.00 Add to Cart ASTM D2178/D2178M-15a Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing $27.00 $54.00 Add to Cart