ASTM A554 Welded Stainless Steel Mechanical Tubing
- Grade: MT-429, MT-430, MT-430-Ti, 409, 434, 436, 439, 444, 410S, S31803, S32101, S32205, S32304, S32550, S32750, S32760, MT-301, MT-302, MT-304, MT-304L, MT-305, MT-309S, MT-309S-Cb, MT-310S, MT-316, MT-316L, S31655, MT-317, MT-321, MT-330, and MT-347.
- Shapes: Round, Square, Rectangular
- Length: 3000-12000mm
- Type: Welded
Features
ASTM A554/A554M Seamless Stainless Steel Mechanical Tubing
Chemical Requirements of Austenitic Stainless Steels
UNS No. | Grade | C (%) | Mn (%) | P (%) | S (%) | Si (%) | Ni (%) | Cr (%) | Mo (%) |
… | 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 | 0.035 | 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 | … |
… | 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 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
S31655 | … | 0.030 | 2.00 | 0.045 | 0.015 | 1.00 | 8.0-9.5 | 19.5-21.5 | 0.5-1.5 |
… | 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 | … |
… | 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 | … |
Chemical Requirements of Ferritic Stainless Steels
Material | Grade | C | Mn | P | S | Si | Ni | Cr | Mo | Ti | Nb | N |
MT-429 | 0.120 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 14.0–16.0 | … | … | … | ||
MT-430 | 0.120 | 1.00 | 0.040 | 0.030 | 1.00 | 0.50 max | 16.0–18.0 | … | … | … | ||
MT-430-Ti | 0.100 | 1.00 | 0.040 | 0.030 | 1.00 | 0.075 max | 16.0–19.5 | 5 × C min, 0.75 max | … | |||
S40900 | 409 | 0.030 | 1.00 | 0.040 | 0.020 | 1.00 | 0.5 | 10.5–11.7 | … | Ti 6X (C+N) min, 0.050 max | 0.17 | 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 | Cb 5 × C min | … | … |
S43035 | 439 | 0.030 | 1.00 | 0.040 | 0.030 | 1.00 | 0.5 | 17.0–19.0 | … | Ti [0.20+4(C+N)] min, 1.10 max Al 0.015 | … | 0.030 |
S44400 | 444 | 0.025 | 1.00 | 0.040 | 0.030 | 1.00 | 1.00 | 17.5–19.5 | 1.75-2.50 | (Ti+Nb)[0.20+4(C+N)] min, 0.80 max | … | 0.035 |
S41008 | 410S | 0.080 | 1.00 | 0.040 | 0.030 | 1.00 | … | 11.5–13.5 | … | … | … | … |
Chemical Requirements of Ferritic-Austenitic Stainless Steels
UNS No. | Grade | C | Mn | P | S | Si | Ni | Cr | Mo | Ti | Nb | N | Cu | Other |
S31803 | 0.03 | 2.0 | 0.030 | 0.020 | 1.00 | 4.5–6.5 | 21.0–23.0 | 2.5–3.5 | … | … | 0.08–0.20 | … | ||
S32101 | 0.04 | 4.0–6.0 | 0.040 | 0.030 | 1.00 | 1.35–1.70 | 21.0–22.0 | 0.10–0.80 | … | … | 0.20–0.25 | 0.10–0.80 | ||
S32205 | 2205 | 0.03 | 2.0 | 0.030 | 0.020 | 1.00 | 4.5–6.5 | 22.0–23.0 | 3.0–3.5 | … | 0.14–0.20 | … | ||
S32304 | 2304 | 0.03 | 2.5 | 0.040 | 0.040 | 1.00 | 3.0–5.5 | 21.5–24.5 | 0.05–0.60 | … | 0.05–0.20 | 0.05–0.20 | ||
S32550 | 255 | 0.04 | 1.5 | 0.040 | 0.030 | 1.00 | 4.5–6.5 | 24.0–27.0 | 2.9–3.9 | … | 0.10–0.25 | 1.50–2.50 | ||
S32750 | 2507 | 0.03 | 1.2 | 0.035 | 0.020 | 0.80 | 6.0–8.0 | 24.0–26.0 | 3.0–5.0 | … | 0.24–0.32 | 0.50 | ||
S32760 | 0.03 | 1.0 | 0.030 | 0.010 | 1.00 | 6.0–8.0 | 24.0–26.0 | 3.0–4.0 | … | 0.20–0.30 | W 0.50–1.00 |
Technical Specifications
Specification | Value |
Standard | ASTM A554/A554M Welded Stainless Steel Mechanical Tubing |
Grade | MT-429, MT-430, MT-430-Ti, 409, 434, 436, 439, 444, 410S, S31803, S32101, S32205, S32304, S32550, S32750, S32760, MT-301, MT-302, MT-304, MT-304L, MT-305, MT-309S, MT-309S-Cb, MT-310S, MT-316, MT-316L, S31655, MT-317, MT-321, MT-330, and MT-347. |
Manufacturing Process | As-welded or Cold-reduced |
Shape | Round, Square, Rectangular, or Special |
Dimension | Round: OD 1/2″ – 12 3/4″ (12.7 – 406.4mm) WT: 0.5 – 15mm Square: 25 x 25 – 350 x 350mm x 2 – 20mm Rectangular: 25 x 38 – 250 x 300mm x 2 – 20mm |
Length | 3000-12000mm |
Delivery Condition | Annealed |
Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
Tests | Chemical analysis, Tensile test, Intergranular corrosion test, Metallographic examination |
Packing
Plain ends. Small-diameter pipes are packaged in wooden crates, and large-diameter pipes are wrapped in woven bags.
Application
Architectural Components: Used in the construction of handrails, guardrails, and ornamental tubing for both interior and exterior designs.
Automotive Industry: Applied in the manufacturing of exhaust systems, structural components, and decorative trim.
Furniture Manufacturing: Utilized for making frames, legs, and other structural parts of furniture.
Food and Beverage Industry: Employed in equipment and machinery where hygiene and corrosion resistance are critical, such as in dairy, brewing, and food processing plants.
Medical and Pharmaceutical Equipment: Used in the construction of medical devices, hospital equipment, and pharmaceutical machinery due to its cleanability and resistance to corrosion.
Sports and Recreational Equipment: Applied in the manufacturing of bicycle frames, gym equipment, and other sports-related items.
Industrial Applications: Used in various industrial machinery and equipment where durability and corrosion resistance are important.
Transportation: Utilized in the construction of bus frames, truck bodies, and other transportation-related structures.