SS 430 NO.4 stainless steel plate

SS 430 NO.4 Stainless Steel Plate

Gangsteel produces SS 430 NO.4 stainless steel plate in full compliance with the leading international standards. We can manufacture to any of the following major specifications to meet your exact project 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)

Whether you need JIS, ASTM, EN, GB, or any combination of these standards, Gangsteel delivers consistent quality, full traceability, and competitive pricing from our advanced Chinese production facilities.

What Is SS 430 NO.4 Stainless Steel Plate?

SS 430 NO.4 stainless steel plate features a refined satin brushed surface created by mechanically polishing the annealed and pickled base material with 150–320 grit abrasives. This process produces a fine, directional brushed texture that effectively conceals fingerprints, light scratches, and daily wear while delivering a sophisticated, low-reflectivity matte appearance (Ra 0.2–0.8 μm). The NO.4 finish strikes the perfect balance between aesthetics and practicality, offering excellent cleanability and long-lasting visual appeal.

As a nickel-free ferritic grade, SS 430 NO.4 plate provides outstanding value with stable pricing, full recyclability, and reliable performance in everyday environments. Its high thermal conductivity and low thermal expansion further enhance its suitability for architectural, kitchen, and industrial applications where both form and function matter.

Chemical Composition

Our SS 430 NO.4 plates strictly conform to the chemical limits of all listed standards:

This precise chemistry ensures a stable chromium-oxide passive layer and prevents excessive carbide formation.

Mechanical Properties

Typical mechanical properties in the annealed condition (standard for NO.4 finish plates):

These values deliver excellent formability for bending, stamping, and fabrication while maintaining sufficient strength for structural and decorative uses.

Available Specifications and Finishes

Gangsteel offers SS 430 NO.4 stainless steel plate in the following standard range (custom sizes available upon request):

• Thickness: 0.3 mm – 3.0 mm (up to 6 mm on request)
• Width: 600 mm – 2000 mm (slit or mill edge)
• Length: Up to 6000 mm
• Tolerance: Thickness ±0.03 mm, width ±0.5 mm, flatness ≤8 mm/m

The NO.4 finish is ideal for fingerprint-resistant and high-touch surfaces. All plates are protected with PVC or PE film to prevent scratching during transit.

Manufacturing Process at Gangsteel

Our production begins with high-purity AOD-refined material to achieve exact chemistry. Hot rolling is followed by cold rolling on precision mills for superior thickness uniformity. Annealing and pickling remove scale, after which the plates undergo multi-stage mechanical brushing with 150–320 grit abrasives to create the uniform directional NO.4 satin surface. Every batch undergoes rigorous inspection including eddy-current testing and AI visual systems. Third-party certification (SGS, TUV, BV) is available for all standards.

For customers requiring the same high-quality material in coil form or other finishes, we recommend our a240 Type_430 stainless steel sheet, EN10088 2 X6Cr17 stainless steel sheet, DIN 1.4016 stainless steel sheet, GB/T 10Cr17 1Cr17 stainless steel sheet, or JIS G4305 SUS 430 stainless steel sheet.

Key Advantages of Gangsteel SS 430 NO.4 Plate

• Fingerprint and scratch resistant — perfect for high-touch areas
• Economical yet durable — nickel-free composition keeps pricing stable
• Excellent formability — high ductility for complex fabrication
• Superior thermal properties — higher conductivity and lower expansion than austenitics
• Magnetic — easy handling in automated lines
• Consistent surface quality — uniform directional brushed finish with excellent cleanability

Wide Range of Applications

SS 430 NO.4 stainless steel plate is the material of choice for:

• Architectural cladding and elevator interiors
• Kitchen equipment (countertops, sinks, commercial hoods)
• Food processing surfaces requiring cleanability
• Automotive interior and exterior trim
• Wall panels, signage, and decorative accents
• Industrial equipment panels and guards

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

Why Choose Gangsteel?

With decades of experience and state-of-the-art Japanese and European polishing lines, Gangsteel guarantees uniform NO.4 surface quality, tight thickness tolerances, and zero-defect flatness. We maintain large inventory for fast delivery (15–30 days) and offer flexible MOQ starting from 5 tons. Every plate is accompanied by full mill test certificates and third-party inspection reports.

Whether your project requires JIS G4305 SUS430 NO.4, ASTM A240 430 NO.4, EN 1.4016 NO.4, or GB/T 3280 10Cr17 NO.4, Gangsteel delivers the same superior quality at competitive prices.

Contact our technical sales team today for current pricing, samples, or customized specifications. Let Gangsteel be your reliable partner for SS 430 NO.4 stainless steel plate.