Black stainless steel rod is a surface-treated stainless steel product. Using vacuum plating (PVD) or electrophoretic coating technology, the stainless steel surface is finished in deep black while retaining stainless steel’s corrosion resistance.
| 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, tensile strength 550MPa, lifespan twice that of carbon steel rods.
High-rise steel structures use 80mm 430 black rods, 30% lower cost than 304, meets dry-environment structural requirements.
Chemical equipment supports use 30mm 316L black rods, resistant to acids and alkalis, no rust in 5 years.
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.
