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MWalloys manufactures a complete range of stainless steel bars—round, square, hexagonal and flat—in grades 304, 304L, 316, 316L, 321, 410 and 17‑4PH (plus duplex 2205 on request). Our precision SS bars deliver excellent corrosion resistance, formability and strength for applications in food processing, pharmaceuticals, chemical plants, construction and marine industries.
Full Specifications & Parameters
| Grade | Chem. Composition (%)* | Tensile (MPa) | Yield (MPa) | Elongation (%) | Shape | Size Range | Weight (kg/m)** | Typical Uses |
|---|---|---|---|---|---|---|---|---|
| 304 | C ≤0.08, Cr 18–20, Ni 8–10.5, Mn ≤2, Si ≤1 | 515–720 | ≥205 | ≥40 | Round, square, hex, flat | Ø3 mm–Ø200 mm; 5 × 5 mm–100 × 100 mm |
0.01–157 | Food equipment, kitchenware, architecture |
| 304L | C ≤0.03, Cr 18–20, Ni 8–12, Mn ≤2, Si ≤1 | 485–690 | ≥170 | ≥40 | Round, square, hex, flat | Ø3 mm–Ø200 mm; 5 × 5 mm–100 × 100 mm |
0.01–157 | Welding applications, pressure vessels |
| 316 | C ≤0.08, Cr 16–18, Ni 10–14, Mo 2–3, Mn ≤2 | 515–690 | ≥205 | ≥40 | Round, square, hex, flat | Ø3 mm–Ø200 mm; 5 × 5 mm–100 × 100 mm |
0.01–157 | Marine, chemical, medical devices |
| 316L | C ≤0.03, Cr 16–18, Ni 10–14, Mo 2–3, Mn ≤2 | 485–660 | ≥170 | ≥40 | Round, square, hex, flat | Ø3 mm–Ø200 mm; 5 × 5 mm–100 × 100 mm |
0.01–157 | Corrosive environments, welding joints |
| 321 | C ≤0.08, Cr 17–19, Ni 9–12, Ti 5×C–0.7 | 515–720 | ≥205 | ≥35 | Round, square, hex, flat | Ø3 mm–Ø150 mm; 5 × 5 mm–80 × 80 mm |
0.01–120 | Exhaust systems, high‑temp service |
| 410 | C 0.15–0.40, Cr 11.5–13.5, Mn ≤1.0 | 480–620 | ≥205 | ≥20 | Round, square, hex | Ø3 mm–Ø100 mm; 5 × 5 mm–63 × 63 mm |
0.01–80 | Cutlery, valves, bearings |
| 17‑4PH | C ≤0.07, Cr 15–17.5, Ni 3–5, Cu 3–5, Nb 0.15–0.45 | 930–1170 | ≥760 | ≥10 | Round, hex | Ø3 mm–Ø80 mm | 0.01–50 | Aerospace fasteners, structural parts |
* Typical composition ranges; see mill test report for exact values.
** Weight per meter of round bar; flat and square bars calculated accordingly.
Why Choose MWalloys
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Wide Grade Coverage: From general‑purpose 304/316 to high‑strength 17‑4PH and 321 for elevated temperatures.
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Certified Quality: ISO 9001, ASTM A276 & EN 10088 compliance; 100% traceable MTRs.
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Precision Finishes: Mill, centerless ground, polished, black oxide—tight tolerances to h9/h10.
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Custom Solutions: Cut‑to‑length, chamfering, drilling, threading per drawing.
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Global Reach: Export to 50+ countries; reliable lead times & competitive pricing.
Logistics & Ordering
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Lead Time: 2–5 weeks from order confirmation
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Packaging: Bundled or crated with protective wrapping; pallets for large orders
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Shipping Terms: FOB, CIF, EXW, DDP available
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Order Process:
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Email grade, shape, size & quantity to sales@MWalloys.com
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Receive detailed quotation & proforma invoice
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Confirm order & arrange deposit
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Production → Inspection → Dispatch → Tracking updates
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FAQs
| Q | A |
|---|---|
| What surface finishes are available? | Mill, centerless ground, polished, black oxide. |
| Can you supply specialty grades (e.g., duplex)? | Yes—duplex 2205 and other super duplex on request. |
| Are material certificates included? | All bars come with MTR; 3.1/3.2 inspection reports available. |
| What tolerances can you meet? | Standard h9/h10; tighter on request. |
| Do you offer secondary machining? | Yes—drilling, threading, chamfering per drawing. |
| What industries use your SS bars? | Food, pharma, marine, chemical, architecture. |
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