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Cold Rolled 316L Stainless Steel Round Bar with Bright Surface and OD 6-630mm
Product Details
| Model NO. | 316L | Shape | Round |
|---|---|---|---|
| Technique | Cold Rolled | Surface Treatment | Bright |
| Specification | OD 6-630mm | Production Capacity | 50000kgs |
| Grade | 316L / 1.4404 / AISI316L | Standard | ASTM A276/276M |
| Diameter | 8 - 300mm | Length | 6m/pcs |
| Tensile Strength | 485 MPa Min | Yield Strength | 170 MPa Min |
| Elongation | 40% Min | Hardness | 95 HRB Max |
| Brinell Hardness | 217 HB Max | ||
| Highlight | Cold Rolled Stainless Steel Bar,Bright Surface 316L Stainless Steel Bar,OD 6-630mm Stainless Steel Round Bar |
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Product Description
1.4404 / 316L Stainless Steel Bar
Product Specifications
| Products | Stainless Steel Round Bar |
| Grade | 316L / 1.4404 / AISI316L |
| Standard | ASTM A276/276M |
| Diameter | 8 - 300mm |
| Length | 6m/pcs or cutting any length as requested |
| Surface | Black, bright |
| Other Grades | 304, 310S, 316L, 317L, 321, 410, 420, 431, 440A/B/C, 2205, 2507, 630, 631, 904L, etc. |
| Service | Cutting, polishing, heat treatment |
Stainless Steel Bar Product Range
| Products Name | Size Range | Mainly Grade |
|---|---|---|
| Stainless Steel Round Bar (hot rolled black surface) | 8 - 300mm | 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc. |
| Stainless Steel Round Bar (bright polished) | 3 - 50mm | 201, 304, 316L, 310S, 2205, 630, etc. |
| Stainless Steel Square Bar | 4×4 - 50×50mm | 201, 304, 316L, 310S, 410, 420, etc. |
| Stainless Steel Hexagon Bar | S4-S70 | 201, 304, 316L, 310S, 410, 420, etc. |
| Stainless Steel Flat Bar | 10×3 - 100×40 | 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc. |
| Stainless Steel Angle Bar | 30×30 - 200×200 | 201, 304, 316L, 310S, 2205, etc. |
| Stainless Steel Channel Bar | 50×25 - 200×100 | 201, 304, 316L, 310S, 2205, etc. |
About 316L Stainless Steel
Grade 316 is the standard molybdenum-bearing austenitic stainless steel, second in importance to 304. The molybdenum content provides 316 with superior corrosion resistance compared to Grade 304, particularly higher resistance to pitting and crevice corrosion in chloride environments.
Grade 316L is the low carbon version of 316, immune from sensitization (grain boundary carbide precipitation). This makes it extensively used in heavy gauge welded components (over about 6mm). There is typically no appreciable price difference between 316 and 316L stainless steel.
The austenitic structure provides excellent toughness, even at cryogenic temperatures.
Composition of 316L Stainless Steel
Table 1. Composition ranges for 316L stainless steel
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 316L | Min: - Max: 0.03 |
Min: - Max: 2.0 |
Min: - Max: 0.75 |
Min: - Max: 0.045 |
Min: - Max: 0.03 |
Min: 16.0 Max: 18.0 |
Min: 2.00 Max: 3.00 |
Min: 10.0 Max: 14.0 |
Min: - Max: 0.10 |
Mechanical Properties of 316L Stainless Steel
Table 2. Mechanical properties of 316L stainless steel
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Rockwell B (HR B) max | Brinell (HB) max |
|---|---|---|---|---|---|
| 316L | 485 | 170 | 40 | 95 | 217 |
Grade Specification Comparison
Table 4. Grade specifications for 316L stainless steel
| Grade | UNS No | Old British BS | Old British En | Euronorm No | Euronorm Name | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|---|---|
| 316L | S31603 | 316S11 | - | 1.4404 | X2CrNiMo17-12-2 | 2348 | SUS 316L |
Corrosion Resistance
Excellent corrosion resistance in atmospheric environments and many corrosive media - generally more resistant than 304. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 60°C.
Considered resistant to potable water with up to about 1000 mg/L chlorides at ambient temperatures, reducing to about 500 mg/L at 60°C.
316 is typically regarded as the standard "marine grade stainless steel", but it is not resistant to warm seawater. In many marine environments, 316 may exhibit surface corrosion, usually visible as brown staining, particularly associated with crevices and rough surface finish.
Heat Resistance
Good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C. Continuous use of 316 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important.
Grade 316L is more resistant to carbide precipitation and can be used in the above temperature range. Grade 316H has higher strength at elevated temperatures and is sometimes used for structural and pressure-containing applications above about 500°C.
Heat Treatment
Solution Treatment (Annealing) - Heat to 1010-1120°C and cool rapidly. These grades cannot be hardened by thermal treatment.
Welding
Excellent weldability by all standard fusion and resistance methods, both with and without filler metals. Heavy welded sections in Grade 316 require post-weld annealing for maximum corrosion resistance. This is not required for 316L.
316L stainless steel is not generally weldable using oxyacetylene welding methods.
Machining
316L stainless steel tends to work harden if machined too quickly. Low speeds and constant feed rates are recommended for optimal results.
316L stainless steel is easier to machine compared to 316 stainless steel due to its lower carbon content.
Hot and Cold Working
316L stainless steel can be hot worked using common techniques. Optimal hot working temperatures should be in the range 1150-1260°C, and should not be less than 930°C. Post-work annealing should be carried out to induce maximum corrosion resistance.
Most common cold working operations such as shearing, drawing, and stamping can be performed. Post-work annealing should be carried out to remove internal stresses.
Hardening and Work Hardening
316L stainless steel does not harden in response to heat treatments. It can be hardened by cold working, which can also result in increased strength.
Applications
- Food preparation equipment particularly in chloride environments
- Pharmaceuticals
- Marine applications
- Architectural applications
- Medical implants, including pins, screws and orthopedic implants like total hip and knee replacements
- Fasteners
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