430 stainless steel surface treatment BA/2B/NO.4

430 Stainless Steel Surface Treatment BA/2B/NO.4

Gangsteel, as an authorized Yongjin 430 agent and direct exporter of Yongjin Stainless Steel (Yongjin Mill) — one of China’s top stainless steel producers from Zhejiang/Guangdong — supplies premium 430 stainless steel with three most popular surface treatments: BA, 2B, and NO.4. We can produce material to any of the following specifications to meet your exact requirements:

• JIS G4305 SUS430(Japan)
• ASTM A240 Type 430(USA)
• EN 10088-2 1.4016 / X6Cr17(Europe)
• DIN EN 1.4016(Germany)
• GB/T 3280 10Cr17 / 1Cr17(China)
• BS 1449 430S17(United Kingdom)
• ISO 4954 X6Cr17(International)

When buyers search for 430 stainless steel, AISI 430 stainless steel, SUS 430 stainless steel, Grade 430 stainless steel, SS 430 stainless steel, 430 ferritic stainless steel, cold rolled 430 stainless steel, 430 stainless steel coil, 430 stainless steel sheet, 430 stainless steel plate, or a reliable 430 stainless steel supplier, 430 stainless steel exporter, and 430 stainless steel factory, they often specifically request different surface treatments from top Chinese mill 430 stainless steel like Yongjin. As a direct Yongjin 430 agent, Gangsteel offers genuine China Yongjin 430 BA/2B with the brand premium and consistent surface quality that customers trust.

Overview of 430 Stainless Steel Surface Treatments

430 stainless steel is a nickel-free ferritic grade prized for its cost-effectiveness, thermal conductivity, and magnetic properties. The final surface treatment dramatically affects appearance, cleanability, fingerprint resistance, and application suitability. The three most requested finishes — BA (Bright Annealed), 2B, and NO.4 — cover almost every need from high-end visible panels to industrial structural parts.

For the same high-quality material, please see our a240 Type_430 stainless steel sheet.

Detailed Comparison: BA vs 2B vs NO.4 on 430 Stainless Steel

All three finishes have identical corrosion resistance, mechanical properties, and formability because they share the same base alloy.

For European or DIN-standard projects, please see our EN10088 2 X6Cr17 stainless steel sheet and DIN 1.4016 stainless steel sheet.

Chemical Composition (Same for BA, 2B, NO.4)

Mechanical Properties (Annealed Condition – Same for All Finishes)

For Chinese-standard projects, the identical material is also available under GB/T 10Cr17 1Cr17 stainless steel sheet.

Manufacturing Process at Gangsteel & Yongjin Mill

As a direct partner of Yongjin Stainless Steel (Yongjin Mill), we start with high-purity AOD-refined material. After precision cold rolling:

• BA finish: Bright annealing in protective atmosphere → mirror surface directly from mill.
• 2B finish: Annealing + pickling + light skin-pass rolling → smooth matte.
• NO.4 finish: Annealing + pickling + multi-stage brushing with 150–320 grit → directional satin.

Every coil/sheet is inspected with gloss meters, roughness testers, and AI visual systems to guarantee uniform surface treatment.

For Japanese-standard requirements, please see our JIS G4305 SUS 430 stainless steel sheet.

Key Advantages of Each Surface Treatment on 430

BA– Premium mirror look, high reflectivity, ideal for visible appliance panels and reflectors. 2B – Most cost-effective, excellent cleanability, perfect for industrial and hidden parts. NO.4 – Best fingerprint/scratch hiding, modern satin appearance for architecture and hardware.

Available Specifications

Gangsteel offers 430 stainless steel in BA, 2B, and NO.4 finishes in the following range:

• Thickness: 0.25 mm – 3.0 mm (up to 6 mm on request)
• Width: 600 mm – 2000 mm (precision slitting available)
• Coil weight: 5–25 tons
• Protective film or paper interleaving standard for export

Wide Range of Applications

• BA: Refrigerator doors, microwave fronts, lighting reflectors
• 2B: Appliance liners, industrial guards, structural components
• NO.4: Elevator panels, door hardware, furniture fronts, architectural cladding

Why Choose Gangsteel for Your Surface Treatment Needs?

As a professional 430 stainless steel supplier and 430 stainless steel exporter, Gangsteel offers genuine Yongjin Stainless Steel (Yongjin Mill) material with full traceability, flexible MOQ (from 5 tons), and fast delivery (15–30 days). We provide complete export documentation and third-party inspection.

FAQ

Which finish is best for visible appliance panels?BA for mirror look or NO.4 for modern satin.

Does surface treatment affect corrosion resistance?No — all three finishes have identical corrosion resistance.

Can I change finish after purchase?2B can be polished to NO.4; BA is final.

Which finish is cheapest?2B is the most economical standard finish.

Is 430 with these finishes food grade?Yes — 2B and BA are widely used for food-contact surfaces in mild environments.

Contact our technical sales team today for current pricing, samples, or expert advice on choosing the right 430 stainless steel surface treatment BA/2B/NO.4. Let Gangsteel help you source genuine top Chinese mill material at factory prices.