Stainless Steel Tubing & Pipe Distribution
Kingmaker Steel stocks a comprehensive range of stainless steel grades, forms, and sizes. As a master distributor, we supply the distribution channel with inventory that would require months of mill lead time to source direct.
Grades Available
Standard austenitic, duplex, and super-austenitic grades stocked for distributor supply.
304 / 304L
UNS: S30400 / S30403
18–20%
8–10.5%
—
General industrial, food processing, architectural
316 / 316L
UNS: S31600 / S31603
16–18%
10–14%
2–3%
Marine, chemical, pharmaceutical, coastal environments
321
UNS: S32100
17–19%
9–12%
—
High-temperature service up to 900°C, aircraft exhaust
347
UNS: S34700
17–19%
9–13%
—
Elevated temperature, high-pressure welded assemblies
2205 Duplex
UNS: S31803 / S32205
21–23%
4.5–6.5%
2.5–3.5%
Oil & gas, seawater, chemical tankers, structural
904L
UNS: N08904
19–23%
23–28%
4–5%
Aggressive acids, offshore, FGD systems
| Grade | UNS | Cr % | Ni % | Mo % | Common Applications |
|---|---|---|---|---|---|
| 304 / 304L | S30400 / S30403 | 18–20% | 8–10.5% | — | General industrial, food processing, architectural |
| 316 / 316L | S31600 / S31603 | 16–18% | 10–14% | 2–3% | Marine, chemical, pharmaceutical, coastal environments |
| 321 | S32100 | 17–19% | 9–12% | — | High-temperature service up to 900°C, aircraft exhaust |
| 347 | S34700 | 17–19% | 9–13% | — | Elevated temperature, high-pressure welded assemblies |
| 2205 Duplex | S31803 / S32205 | 21–23% | 4.5–6.5% | 2.5–3.5% | Oil & gas, seawater, chemical tankers, structural |
| 904L | N08904 | 19–23% | 23–28% | 4–5% | Aggressive acids, offshore, FGD systems |
Product Capabilities
- Welded tubing for mechanical, ornamental & structural applications (ASTM A554, A269, A249)
- Welded & drawn tubing (ASTM A269, A249)
- Welded stainless pipe (ASTM A312 — Schedule 5S, 10S, 40S, 80S)
- OD range: 1/8" through 6" (standard), larger on inquiry
- Wall thicknesses: 0.020" through 0.500" and schedule sizes
- Lengths: random, cut-to-length, and full mill lengths
- Metric sizes available for export requirements
- Full mill test reports (MTR) with every order
- Dual-certified material where applicable
- DFARS-compliant material on request
Surface Finishes
Bright Annealed (BA)
Interior bright finish, highly polished, preferred for semiconductor and pharmaceutical applications
Annealed & Pickled
Standard mill finish for general industrial and chemical service
Electro-Polished
Ultra-clean interior surface for ultra-high purity applications
Polished OD
Exterior polished for sanitary and architectural applications
The Master Distributor Advantage
As a master distributor, Kingmaker Steel sits between the mill and the distribution channel. We purchase in mill-scale quantities — coils, bundles, and full-heat lots — and make this inventory available to distributors in the quantities you actually need: cut lengths, small tube bundles, and partial quantities that mills will not sell directly.
This means you can offer your customers better availability and faster delivery than sourcing direct, without tying up your working capital in large minimum orders.
Discuss Your Requirements