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MWalloys produces a full line of stainless steel pipes and tubes—seamless and welded—in grades 304, 304L, 316, 316L, 321, 310, 904L and duplex 2205. Available in OD Ø10 mm–Ø1200 mm, wall thicknesses 1 mm–40 mm and lengths up to 12 m, our SS pipes offer superior corrosion resistance, high‑temperature strength and hygienic surfaces for food, pharmaceutical, chemical, petrochemical, power and marine industries.
Full Specifications & Parameters
| Grade | Chem. Comp. (%)* | Tensile (MPa) | Yield (MPa) | Elongation (%) | OD Range (mm) | WT Range (mm) | Length (m) | Weight (kg/m)** | Typical Uses |
|---|---|---|---|---|---|---|---|---|---|
| 304 | C ≤0.08, Cr 18–20, Ni 8–10.5, Mn ≤2 | 515–720 | ≥205 | ≥40 | 10–1200 | 1–40 | 3–12 | 0.08–145 | Food, beverage, architecture |
| 304L | C ≤0.03, Cr 18–20, Ni 8–12, Mn ≤2 | 485–690 | ≥170 | ≥40 | 10–1200 | 1–40 | 3–12 | 0.08–145 | Welded vessels, chemical piping |
| 316 | C ≤0.08, Cr 16–18, Ni 10–14, Mo 2–3 | 515–690 | ≥205 | ≥40 | 10–1200 | 1–40 | 3–12 | 0.08–145 | Marine, pharma, chemical |
| 316L | C ≤0.03, Cr 16–18, Ni 10–14, Mo 2–3 | 485–660 | ≥170 | ≥40 | 10–1200 | 1–40 | 3–12 | 0.08–145 | Corrosive service, welding |
| 321 | C ≤0.08, Cr 17–19, Ni 9–12, Ti 5×C–0.7 | 515–720 | ≥205 | ≥35 | 10–600 | 1–25 | 3–12 | 0.08–70 | Exhaust, high‑temp process |
| 310 | C ≤0.25, Cr 24–26, Ni 19–22 | 515–700 | ≥205 | ≥35 | 10–600 | 1–25 | 3–12 | 0.10–70 | Furnace, heat‑treatment equipment |
| 904L | C ≤0.02, Cr 19–23, Ni 23–28, Mo 4–5 | 515–700 | ≥205 | ≥35 | 10–400 | 1–20 | 3–12 | 0.08–45 | Acid, chloride‑rich environments |
| Duplex 2205 | C ≤0.03, Cr 22–23, Ni 4.5–6.5, Mo 2.5–3.5, N 0.14–0.20 | 620–860 | ≥450 | ≥25 | 10–610 | 1.5–25 | 3–12 | 0.08–125 | Oil & gas, pulp & paper |
* Typical ranges; refer to MTR for exact values.
** Weight per meter varies by OD & WT.
Why Choose MWalloys
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Extensive Grade Offering: From general‑purpose 304 to high‑alloy 904L and duplex 2205 for aggressive environments.
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Certified Excellence: ISO 9001, ASTM A312, EN 10216‑5 compliance; 100% MTR traceability.
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Seamless & Welded: Both seamless, ERW and precision welded options with full NDT (UT, RT) & hydrostatic testing.
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Tailored Solutions: Custom OD/WT, cut‑to‑length, surface finishes, end preparations.
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Technical Expertise & Support: Metallurgical guidance, design review and after‑sales service.
Logistics & Ordering
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MOQ: 100 kg (negotiable for stocked sizes)
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Lead Time: 2–6 weeks after PO confirmation
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Packaging: Seaworthy wooden crates, plastic end‑caps and film wrap
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Shipping Terms: FOB, CIF, EXW, DDP available
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Order Process:
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Email grade, OD, WT & quantity to sales@MWalloys.com
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Receive quotation & proforma invoice
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Confirm order & payment terms
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Production → Inspection → Dispatch → Tracking updates
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FAQs
| Q | A |
|---|---|
| What standards do your SS pipes meet? | ASTM A312, A358, EN 10216‑5, ASME B36.19M, JIS G3459 |
| Can you supply sanitary tubes? | Yes—ISO 1127/EN 10312 standard ferrule & tri‑clamp tubes. |
| Do you offer polished finishes? | Yes—#1, #2B, BA, 2D, 2R, mirror polish available. |
| How do you ensure corrosion resistance? | Full chemical analysis, pickling & passivation per ASTM A380. |
| Can you provide material test certificates? | Yes—MTRs, NDT & 3.1/3.2 inspection reports available. |
| Are custom OD/WT available? | Yes—custom dimensions and tolerances per drawing. |
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