Raw Materials
Stainless Steel Bars
Direct from mill to your facility. 304, 316, 17-4PH in round, square, hex, and flat profiles. Familiar with material certification and strength testing.
- ISO 9001 Certified
- Custom OEM Solutions
- Fast Global Shipping
- Technical Support
304/316L
Primary Grades
Certification
ISO 9001 · RoHS · NTS
Global Supply
30+ Countries Served
15-20
Working days lead time on samples
Product Range
Types of Stainless Steel Bar Range
By Shape
By Material Grade
By Surface Finish
Material Specification
Choosing the Right Grade
304 Stainless
Standard grade for indoor machinery, automation, and dry or mildly humid environments. Good resistance to cleaning chemicals. Cost-effective for high-volume orders. Not suitable for continuous salt spray or chloride-heavy process environments.
Food · Automation · Indoor
316 / 316L
Marine and food-grade standard. 2–3% molybdenum addition raises chloride pitting resistance significantly above 304. Required for outdoor, marine, offshore, and food equipment with CIP chemical cleaning. Especially 316 stainless steel has excellent resistance to corrosive saltwater effects.
Marine · Chemical · Pumps
17-4PH
Precipitation-hardened martensitic grade. ≥ 1,310 MPa tensile strength in H900 condition — significantly stronger than 316 at equivalent cross-section. Specified for ball joints in motorsport, aerospace, and high-cycle fatigue applications where load ratings are the primary constraint.
Aerospace · Motorsport · Hi-load
Applications
Diverse Applications of Stainless Steel Bars
01
Food & Beverage Equipment
Sanitary 304 bars for mixer shafts, valves, conveyor rollers
02
Marine Engineering
316L bars for propeller shafts, mooring chains, deck hardware
03
Chemical Processing
Duplex and super-austenitic grades
04
Aerospace & Defence
17-4PH bars for structural parts, fasteners
05
Oil & Gas
316L bars for pump shafts, valve stems, fasteners
06
Medical Device Manufacturing
316L bars for implants and surgical tools
Why Profab
Your Reliable Stainless Steel Bar Supplier
Manufacturer-Direct Pricing
We are the original manufacturer. Buying direct eliminates all distributor markups, giving you the most competitive price per meter while maintaining consistent quality across every batch. Maximum margins for your business.
Strong Customization
We specialize in small-batch orders, high-precision ground bars, and special-shaped profiles, helping you reduce secondary machining time while meeting the most demanding engineering specifications.
Quality Guarantee
Our expert team provides metallurgical consultation and corrosion analysis, delivering high-performance materials backed by full traceability and professional guidance for complex industrial environment substitutions.
Technical Reference
Technical Specifications
| Category | Technical Details & Specifications |
|---|---|
| Best Selling Range | 6mm ~ 80mm |
| Tolerances (Common) | h9 (±0.05 – 0.15 mm) |
| Tolerances (High Precision) | h7, h8 (±0.01 – 0.03 mm) |
| Straightness | ≤0.5mm/m (Cold Drawn) / ≤1.0mm/m (Hot Rolled) |
| Production Standards | ASTM A276, A479, A582 / EN 10088-3 / JIS G4303 |
| Quality Certifications | ISO 9001:2015, SGS |
| Documentation | Full Mill Test Certificate (MTC) Available |
| Testing Procedures | PMI, UT, Tensile Test, Hardness Verification, Yield Test |
FAQ
Common Questions
Not seeing your question? Email us at [email protected] and we typically reply same day.
Do you support custom molds or special-shaped parts?
Yes, custom molds and special-shaped parts are supported. Minimum order quantity needs to be discussed in advance.
What surface condition is best for my application?
Purchasers must match finish to use case: ground bars for shafts, polished bars for hygienic equipment, pickled bars for structural use.
How do I verify material authenticity before purchasing?
We can provide PMI (Positive Material Identification) testing, third-party inspection reports, or sample verification
What is the packaging method (moisture-proof wooden case / anti-rust paper + bundling)?
Standard packaging: individually sealed bag + bubble wrap for shock protection + reinforced outer carton. Packaging can be customized according to customer requirements, including custom packaging solutions.
What payment methods do you accept?
PayPal, Bank Transfer (T/T), and Alibaba platform.
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