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. Related products Add to wishlist Quick View ASTM B748-90(2001) $26.00 Add to wishlist Quick View ASTM D396-90 $30.00 Add to wishlist Quick View ASTM D1946-90(1994)e1 $30.00 Add to wishlist Quick View ASTM E50-90(1995)e1 $43.00 Add to wishlist Quick View ASTM A193-90a $24.00 Add to wishlist Quick View ASTM E1035-85(1990) $121.00 Add to wishlist Quick View ASTM E1393-90 $100.00 Add to wishlist Quick View ASTM D2585-68(1990)e1 $32.00 Search for: Home SHOP BY PUBLISHER AS ACI API ASME ASTM AWS SAE CLSI FAQ Contact Us Login Login Username or email address * Password * Remember me Log in Lost your password? Register Email address * A link to set a new password will be sent to your email address. Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. Register