Engineered for heavy-duty mechanical shafts, structural components, and corrosion-resistant industrial parts. Features a uniform, deep-black surface finish achieved via advanced thermal/chemical treatment without compromising core tensile strength (304 grade ≥520MPa). Full MTC traceability and custom cutting supported.
| Element | C | Cr | Ni | Mn | Si | P | S | N |
|---|---|---|---|---|---|---|---|---|
| Content % | ≤0.08 | 18.0–20.0 | 8.0–11.0 | ≤2.0 | ≤1.0 | ≤0.045 | ≤0.03 | ≤0.10 |
| Property | Value | Test Standard |
|---|---|---|
| Density | 7.93 g/cm³ | GB/T 7999 |
| Tensile Strength | ≥520 MPa | GB/T 228.1 |
| Elongation | ≥35% | GB/T 228.1 |
| Brinell Hardness (HB) | 147–200 | GB/T 231.1 |
| Salt Spray Test (NSS) | 720h no red rust | ASTM B117 |
Diameter: 8–200mm (±0.1mm, hot-rolled precision)
Length: 3000/6000mm (custom up to 12000mm)
Common Grades: 304, 316L, 430
Surface: Hot-rolled black (NO.1)
Stainless Steel Bar Inventory Racking System
Spectrometer for Alloy Composition Analysis
Finished Stainless Steel Bars on Storage Racks
Palletized Stainless Steel Bars on Workshop Floor
Secured Stainless Steel Bar Bundles for Shipment
Forklift Loading Bundled Stainless Steel Bars into Freight Truck
Heavy machinery uses 50mm 304 black rods for shafts in machinery manufacturing workshops, delivering a tensile strength of 550MPa and a lifespan twice that of carbon steel rods.
High-rise steel structures use 80mm 430 black rods installed in architectural facades, support at a 30% lower cost than bright 304 while meeting dry-environment structural requirements.
Chemical equipment supports use 30mm 316L black rods in chemical production workshops, highly resistant to acids and alkalis with zero structural degradation after long-term exposure.
Walmay will help match the right stainless product form and specification for your application, confirm quantities and packing needs, and provide requested documents based on order requirements.
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