Premium 304 Stainless Steel Perforated Sheet for Durable Solutions
jul . 27, 2025
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Explore the latest technological advancements and market trends in 304 stainless steel perforated sheet and custom 304 stainless steel expanded metal. This guide details advanced production processes, in-depth technical comparison, real-world case studies, and expert answers to frequent industry questions—all to support optimal project decisions.
Market Overview & Industry Trends: 304 Stainless Steel Perforated Sheet
The 304 stainless steel perforated sheet market has experienced steady growth, driven by global infrastructure modernization, increased demand for architectural aesthetics, and its proven performance in corrosion-resistance and durability. According to the Grand View Research 2023 Stainless Steel Market Report, the stainless steel sheet segment—especially 304 alloys—accounted for over 30% of the industrial stainless market, expected to grow at a CAGR of 5.3% through 2029.
In recent years, custom 304 stainless steel expanded metal solutions have gained popularity in curtain wall systems and energy-efficient building envelopes, especially with CNC-based manufacturing offering tighter tolerances and design flexibility. Compliance with international standards like ISO 9001, ANSI B36.19M, and ASTM A240 has further cemented trust within the petrochemical, water treatment, and metallurgical sectors.
Typical Application: 304 Stainless Steel Perforated Sheet for Architectural Façade Systems
Technical Parameters: 304 Stainless Steel Perforated Sheet Data Table
Parameter
Specification
Standard
Unit
Remarks
Material
Stainless Steel 304 (UNS S30400)
ASTM A240
-
Cr: 18–20%, Ni: 8–10.5%
Thickness
0.5 – 5.0
ANSI/ASME B1.20.1
mm
Customizable
Hole Diameter
1.0 – 20.0
Custom
mm
Round, square, slot available
Open Area (%)
20 – 65
ISO 7800
%
Depends on hole pattern
Yield Strength
215
EN 10088-2
MPa
Min
Tensile Strength
505
EN 10088-2
MPa
Min
Elongation
45
ISO 6892-1
%
Min (in 50mm)
Corrosion Resistance
Excellent
ASTM A262
-
SUS 304 rated
Surface Finish
2B, BA, No.4, HL, Custom
JIS G4305
-
Varies with application
Process Flow: Manufacturing of 304 Stainless Steel Perforated Sheet
The manufacture of a high-quality 304 stainless steel perforated sheet involves multiple precision steps to ensure mechanical performance and aesthetics. The following flowchart illustrates the standard production process for both standard and custom expanded metal solutions:
Key Steps: Raw Material: Sourcing certified 304 stainless steel per ASTM A240. Laser/Shearing: Coil/plate is precision-cut to sheet size. Perforation: Fully automated CNC/stamping create uniform openings (ISO 7800 compliance). Forming/Expanding: Sheet is worked to achieve required profile or expanded mesh pattern. Surface Finish: Brushed, polished, passivated, or custom coating; final product undergoes quality testing (ISO 9001).
Superior Corrosion Resistance: The high chromium and nickel content in 304 alloy ensures excellent resistance to oxidation and common corrosive environments (tested—ASTM A262 Sensitization Test, passed ≥ 96 hrs salt spray).
Load Capacity & Strength: Typical yield strength ≥ 215 MPa, tensile up to 505 MPa, supporting structural and safety-critical uses.
Design Versatility: Supports round, square, slot, hexagonal perforations and expanded mesh formats. Customization to architectural and engineering requirements.
“Impressive quality, zero deformation after installation even on curved curtain wall surfaces.” – Senior Architect, NL Architects
“Supplied on time with all international certificates; passed ISO 9001 and ANSI B36.19M audits.” – Construction Manager, Orascom Engineering
“Effective anti-corrosion performance in marine air. Engineering support was responsive and knowledgeable.” – Plant Maintenance Supervisor, SK Petrochemicals
Certifications & Partnerships: Products certified under ISO 9001:2015, ASTM A240/480, cooperation with SGS, TüV Rheinland, and global engineering firms since 2004.
FAQ: Professional FAQ on 304 Stainless Steel Perforated Sheet & Custom Expanded Metal
What grades are used for stainless steel perforated sheets?
The most common is 304 stainless steel (UNS S30400), known for balanced corrosion resistance, formability, and cost. For more aggressive environments, 316 is also used but at higher cost.
What testing standards apply to 304 stainless steel perforated sheet?
Key standards include ASTM A240 for plate/sheet composition and dimensional tolerance, ASTM E112 for grain size, ISO 9001 for manufacturing QA, and ANSI B36.19M for thickness.
What is the minimum thickness and typical hole size?
Standard production ranges from 0.5 mm to 5.0 mm in thickness. Common hole diameters start at 1.0 mm, but can be tailored per order.
How is the product installed or mounted?
Installation uses either pre-punched mounting holes, frame slots, or custom fasteners as per engineering drawings. Typical standards: EN 1090 for structural integrity.
Does 304 stainless steel expanded metal require maintenance?
Minimal – occasional cleaning for aesthetics; no need for anti-rust treatments in most outdoor environments due to innate corrosion resistance.
What is the standard lead time for custom orders?
Standard sheets: 7-10 working days. Custom expanded/perforated mesh: 2-4 weeks, including fabrication and QA—with advance shipping for urgent projects.
What warranty and after-sales service is provided?
All 304 stainless steel perforated sheet products carry a minimum 10-year anti-corrosion and workmanship guarantee. 24/7 technical support, on-site engineering consultation, and free samples available.
Delivery, Warranty & Trust Commitment
Lead Time: Fast shipment for standard SKUs (≤10 days). Custom jobs: 2–4 weeks, tracked with status updates.
Comprehensive Warranty: 10–15 years corrosion & defect guarantee. EU REACH and RoHS compliance.
Customer Support: Multilingual technical team, 24/7 chat or phone support, full documentation and after-sale engineering guidance.
Certifications Provided: Full batch traceability, 3.1 material test certificate (MTC), ISO/ASTM/ANSI compliance reports.
