Polished Stainless Steel Bar - Precision-Finished 304/316 Grade Metal Rods

Technical Specifications of Polished Stainless Steel Bar

Polished Stainless Steel Bar - Precision-Finished 304/316 Grade Metal Rods

Polished stainless steel bar represents a premium-grade metal product featuring mirror-like surface finishes achieved through precision grinding and buffing processes. These meticulously finished rods serve critical roles in architectural decoration, food processing equipment, medical instruments, and high-visibility applications where both aesthetic appeal and corrosion resistance are paramount. Manufactured from austenitic grades including 304 and 316L, these bars deliver exceptional durability against corrosive environments while maintaining superior dimensional accuracy within ±0.05mm tolerances per ASTM A276 specifications.

What is Polished Stainless Steel Bar?

A polished stainless steel bar is a solid metal rod subjected to sequential abrasive polishing stages—typically progressing from 120-grit through 600-grit finishing—to achieve surface roughness values below Ra 0.4μm. This metallurgical product combines the inherent anti-corrosion properties of chromium-nickel alloys with reflective surface characteristics suitable for decorative and sanitary applications requiring frequent cleaning protocols.

Polished Stainless Steel Bar Technical Specifications

Standard dimensions range from 3mm to 300mm diameter with length options up to 6000mm per EN 10088-2:2014 requirements. Grade 304 bars contain 18-20% chromium and 8-10.5% nickel with carbon content limited to 0.08% maximum, while 316L variants incorporate 2-3% molybdenum for enhanced chloride resistance with carbon restricted to 0.03% per ASTM A240/A240M Section 6.2. Surface finishes comply with #4 (150-grit brushed), #6 (220-grit dull polish), or #8 (mirror polish) classifications according to ASTM A480 standards.

Why Choose Our Polished Stainless Steel Bar

Our manufacturing facility operates continuous bright annealing furnaces maintaining protective hydrogen atmospheres at 1050-1150°C, eliminating surface oxidation while preserving chromium oxide passivation layers. Each production lot undergoes optical emission spectrometry (OES) verification confirming elemental composition compliance, backed by mill test certificates per EN 10204 Type 3.1. We maintain ISO 9001:2015 certified quality systems ensuring consistent surface roughness measurements and straightness tolerances within 1mm per meter length.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ starts at 500 kilograms per specification, though we accommodate smaller quantities for specialized diameters or custom finishes with adjusted mill-direct pricing. Sample lengths of 300-500mm are readily accessible for material qualification testing prior to volume commitments.

Do you provide material test certificates?

Yes, comprehensive mill test certificates accompany every shipment, documenting chemical composition analysis, mechanical property test results including tensile strength of 515 MPa minimum, and surface finish verification measurements. Certificates conform to EN 10204 Type 3.1 standards with full traceability to heat numbers and production batches.

What is the typical delivery time?

Standard polished bars in 304 and 316L grades ship within 15-20 business days from order confirmation for stocked dimensions. Custom diameter specifications or specialized surface finishes require 25-35 days production lead time, depending on current mill scheduling and finishing queue capacity.

Can you cut to custom sizes?

Our precision cutting services utilize carbide-tipped saws maintaining perpendicularity within ±0.5° tolerance, accommodating length requirements from 100mm to 6000mm. Cut ends receive deburring treatment, and we offer additional machining operations including threading, chamfering, and center drilling per customer drawings with ±0.1mm dimensional accuracy.

Get a Competitive Quote for Polished Stainless Steel Bar

Contact our technical sales team with your specific diameter, length, finish grade, and quantity requirements to receive factory-competitive pricing within 24 hours. We provide comprehensive material selection guidance, comparing 304 versus 316L performance characteristics for your intended application environment, along with value-driven logistics solutions for both domestic and international deliveries.