Premium Stainless Steel Bar Supplier | Round, Square, Hexagon Bars | 304, 316, 17-4PH
Thickness：0.3mm~250mm
Width：20-3000mm
Length：0.5-12m
Surface：Mild steel plain finish, hot dip galvanized, color coated, etc.
Standard：ASTM，AISI，JIS,GB， DIN,EN
Products can be customized
Email: [email protected]
WhatsApp/WeChat/Mobile：+86-18753135285
Stainless steel bar performance parameters
| Product Name | Stainless steel Round rod |
|---|---|
| Material | 304, 304L, 321, 316, 316L, 310S, 630, 1Cr13, 2Cr13, 3Cr13, 1Cr17Ni2 |
| Model | outer diameter 10-400mm, length 1m-12m or according to customer special requirements |
| Standard | GB: GB/T14975-2002, GB/T14976-2002, GB/T13296-91, GB/T1220-2007 ASTM A484/A484M, ASTM A213/213A, ASTM A269/269M |
| Place of Origin | Shandong, China |
| Delivery time | 7-15 days |
| Surface finishing | 2B, 2D, No. 1, No. 4, BA, HL, 6K, 8K, polishing, annealing, pickling, bright, etc. |
| Certificate | ISO9001,SGS,CE |
| Supply capacity | 20,000 tons/year |
| MOQ | 1 ton |
| Trade Terms | FOB, CIF, CFR, EXW, FCA, FAS, etc. |
| Payment | 30%TT+70%TT/LC |
| Tests | squash test, extension test, hydrostatic test, crystal decay test, heat resistance |
| Application | Mainly used for aircraft engine blades, casings, fasteners, combustion chambers, discs, shafts, combustion chamber walls, liquid oxygen kerosene engines, bomb bodies, cylinders, propulsion devices, etc. Widely used in aerospace, aviation, atomic energy, nuclear energy, petroleum, chemical industry, and food, environmental protection, marine development, boiler heat exchangers and other fields. |
Advantages of Our Stainless steel bar
Extreme Dimensional Precision and Surface Consistency
By utilizing advanced centerless grinding and cold-drawing processes, our stainless steel bars achieve extremely tight tolerance ranges (such as h8 or h9). This high-precision dimensional control, combined with consistent surface smoothness, ensures seamless operation in automatic bar feeders and CNC machining centers, significantly reducing setup costs and material scrap rates for our clients.
Optimized Microstructure and Enhanced Machinability
Our bars undergo rigorous solution annealing to ensure a uniform and stable microstructure. For applications requiring heavy machining, our free-cutting grades (e.g., 303, 416) offer excellent chip-breaking performance and minimal tool wear. This not only boosts processing speeds but also ensures that precision parts maintain superior geometric tolerances even after complex machining operations.
Superior Corrosion Resistance and High-Load Reliability
Selected from high-purity raw materials with strictly controlled impurities (P, S), our stainless steel round and hexagon bars perform exceptionally in harsh environments. The products offer strong resistance to pitting and stress corrosion cracking while maintaining high tensile strength, making them ideal for pump shafts, valve stems, and high-strength fasteners operating in marine, chemical, or high-pressure conditions.
Packaging style of Stainless steel bar
FAQs
What heat treatment states do you offer for the bars? Can the hardness be customized to my machining needs?
We offer various states including Annealed, Cold Drawn, and Solution Treated. We can precisely control the hardness range according to your requirements, ensuring the material is both easy to machine and meets the mechanical strength standards for your finished parts.
Do your round bars meet the straightness and tolerance requirements for high-speed automatic Swiss-type machining?
Specifically for precision machining clients, we offer high-precision ground bars with h8 or h9 tolerances, with straightness strictly controlled within 0.5mm/m. This effectively prevents vibration during high-speed rotation, ensuring machining accuracy and protecting your machine’s spindle.
How can I be sure the bars I receive are authentic 316L or 303 grade?
Every batch is accompanied by a complete EN 10204 3.1 Mill Test Certificate (MTC), covering chemical composition and physical properties. All products are heat-traceable, and we support on-site Positive Material Identification (PMI) testing by clients.
For large-diameter forged bars, how do you ensure there are no internal cracks or shrinkage cavities?
For large-scale and critical-use bars, we perform strict Ultrasonic Testing (UT Test). This non-destructive testing ensures a dense internal structure free of defects, making them ideal for high-pressure valve stems or heavy-duty mechanical shafts.
Can you provide fixed-length cutting? Are the ends of the bars chamfered?
We offer precision fixed-length sawing according to your needs, with tolerances controlled within +5mm/-0mm. By default, our bars feature faced or chamfered ends to facilitate automatic bar feeder gripping and reduce safety risks during handling.
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