Abstract
This guide covers standard specification for welded stainless steel tubing for mechanical applications where appearance, mechanical properties, or corrosion resistance is needed. The tubes shall be made from flat-rolled steel by an automatic welding process without the addition of filler metal. Tubes shall be furnished in one of the following shapes - round, square, rectangular, or special. Heat analysis shall be performed wherein several grades of steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, titanium, columbium, and tantalum.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers welded austenitic and ferritic stainless steel mechanical tubing intended for use in ornamental, structural, exhaust, and other applications where appearance, mechanical properties, or corrosion resistance is needed. The grades covered are listed in Table 1. TABLE 1 Chemical Requirements | UNS # | Grade | Composition, % | | | Carbon,
max | Manga-
nese,
max | Phos-
phorus,
max | Sulfur,
max | Silicon,
max | Nickel | Chromium | Molybdenum | Titanium | Columbium + Tantalum | Nitrogen | | Austenitic | | | | MT-301 | 0.15 | 2.00 | 0.045 | 0.030 | 1.00 | 6.0–8.0 | 16.0–18.0 | ... | ... | ... | | | | MT-302 | 0.15 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0–10.0 | 17.0–19.0 | ... | ... | ... | | | | MT-304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0–11.0 | 18.0–20.0 | ... | ... | ... | | | | MT-304L | 0.035A | 2.00 | 0.045 | 0.030 | 1.00 | 8.0–13.0 | 18.0–20.0 | ... | ... | ... | | | | MT-305 | 0.12 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0–13.0 | 17.0–19.0 | ... | ... | ... | | | | MT-309S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 12.0–15.0 | 22.0–24.0 | ... | ... | . . . | | | | MT-309S-Cb | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 12.0–15.0 | 22.0–24.0 | ... | ... | B | | | | MT-310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.0–22.0 | 24.0–26.0 | ... | ... | ... | | | | MT-316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0–14.0 | 16.0–18.0 | 2.0–3.0 | ... | ... | | | | MT-316L | 0.035A | 2.00 | 0.045 | 0.030 | 1.00 | 10.0–15.0 | 16.0–18.0 | 2.0–3.0 | ... | ... | | | | MT-317 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 11.0–14.0 | 18.0–20.0 | 3.0–4.0 | ... | ... | | | | MT-321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 9.0–13.0 | 17.0–20.0 | ... | C | ... | | | | MT-330 | 0.15 | 2.00 | 0.040 | 0.030 | 1.00 | 33.0–36.0 | 14.0–16.0 | ... | ... | ... | | | | MT-347 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 9.0–13.0 | 17.0–20.0 | ... | ... | B | | | Ferritic | | | | MT-429 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 14.0–16.0 | ... | ... | ... | | | | MT-430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 16.0–18.0 | ... | ... | ... | | | | MT-430-Ti | 0.10 | 1.00 | 0.040 | 0.030 | 1.00 | 0.075 max | 16.0–19.5 | ... | 5 × C min, | ... | | | | | | | | | | | | | 0.75 max | | | | S40900 | 409D | | | | | | | | | | | | | S40910 | | 0.030 | 1.00 | 0.040 | 0.020 | 1.00 | 0.50 | 10.5–11.7 | ... | Ti 6X (C+N) min,
0.050 max | Cb 0.17 | 0.030 | | S40920 | | 0.030 | 1.00 | 0.040 | 0.020 | 1.00 | 0.50 | 10.5–11.7 | ... | Ti 8X (C+N) min,
Ti 0.15–0.50 | Cb 0.10 | 0.030 | | S40930 | | 0.030 | 1.00 | 0.040 | 0.020 | 1.00 | 0.50 | 10.5–11.7 | ... | (Ti+Cb) [0.08+8
× (C+N)] min,
0.75 max;
Ti 0.05 min | ... | 0.030 | | S43400 | 434 | 0.120 | 1.00 | 0.040 | 0.030 | 1.00 | ... | 16.0–18.0 | 0.75–1.25 | ... | ... | ... | | S43600 | 436 | 0.120 | 1.00 | 0.040 | 0.030 | 1.00 | ... | 16.0–18.0 | 0.75–1.25 |
2. Referenced Documents (purchase separately)  The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Federal Standard
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
Military Standards
MIL-STD-129 Marking for Shipment and Storage Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage
ASTM Standards
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
Keywords
austenitic stainless steel; exhaust tubing; ferritic stainless steel tubing; mechanical tubing; ornamental tubing; stainless steel tube; steel tube; structural tubing; welded steel tube ;
ICS Code
ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)
DOI: 10.1520/A0554
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]
|
|
Standards Tracker
Standards Subscriptions
Customers frequently also buy:
A240A240M
A370
A269
Related Standards:
A511/A511M
A270/A270M
A500/A500M
A269
A268/A268M
See All
|
