All Products
-
Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
Precision Cold-Rolled 304 Stainless Steel Strip Ideal for Automotive and Electronics Manufacturing
| Place of Origin | China |
|---|---|
| Brand Name | TISCO BAOSTEEL POSCO |
| Certification | ISO |
| Model Number | 201 304 309S 310S 316L 317L 321 347 410 420 430.etc |
| Minimum Order Quantity | 2 Ton |
| Price | 1800-2000 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 20Ton per week |
Product Details
| Products | Stainless Steel Coil | Material | Stainless Steel |
|---|---|---|---|
| Thickness | 0.1 - 3.0mm | Width | 1000mm 1219mm 1500mm |
| Surface | 2B NO.1 NO.4 8K | Grade | 201 304 309S 310S 316L 317L 321 347 410 420 430 436 439 441 444.etc |
| Standard | ASTM EN GB JIS | Service | Cutting |
| Highlight | 304 stainless steel strip for automotive,cold-rolled stainless steel strip,precision stainless steel strip electronics |
||
Product Description
Products Specification
|
Products Name:
|
Stainless steel Coil
|
|||
|
Thickness:
|
0.1 mm - 10.0 mm
|
|||
|
Inner Diameter
|
508mm
|
|||
|
Width:
|
1000mm, 1219mm, customized max width 1500mm
|
|||
|
SS Grade:
|
201 202 301 304 304L 309S 310S 316L 316Ti 317L 409L 410 420 436L 439 441 444
2205 2507 904L C276 600 625 825 926.etc
|
|||
|
Coil surfaces:
|
2B, No.1, BA, Mirror, Hairline, No.4, PVD
|
|||
|
Available finishes:
|
No.4, Hairline, Mirror, Etching, PVD Color, Embossed, Vibration, Sandblast, Combination, lamination etc.
|
|||
|
Standard:
|
JIS, AISI,ASTM,GB,DIN
|
|||
|
Packing way:
|
PVC+ waterproof paper + strong sea-worthy wooden package
|
|||
Product Overview
Engineered for high-performance applications, our precision cold-rolled 304 stainless steel strip delivers the perfect balance of corrosion resistance, mechanical strength, dimensional accuracy, and surface integrity required by today’s advanced automotive and electronics industries. Made from premium AISI 304 (UNS S30400 / SUS304 / EN 1.4301), this strip is cold-rolled to tight tolerances in thicknesses ranging from 0.1 mm to 3.0 mm, with a smooth 2B surface finish and burr-free slit edges—ensuring seamless integration into automated assembly lines, stamping operations, and miniaturized components.
Whether you’re producing EV battery interconnects, sensor housings, fuel injectors, or EMI shielding, our 304 stainless steel strip provides the reliability and consistency that global OEMs demand.
Why 304 Stainless Steel for Automotive & Electronics?
Grade 304 stainless steel is the go-to material for critical components due to its:
- Excellent corrosion resistance against road salts, coolants, cleaning agents, and atmospheric exposure
- Non-magnetic properties (in annealed condition)—essential for sensors, relays, and electronic shielding
- High formability and ductility, enabling complex stamping, bending, and deep-drawing without cracking
- Good electrical conductivity relative to other stainless grades, suitable for current-carrying parts
- Compliance with RoHS, REACH, and automotive material standards (e.g., VDA, AIAG)
Its balanced composition of 18% chromium and 8% nickel ensures long-term durability in both under-hood automotive environments and sensitive electronic enclosures.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Material Grade | AISI 304 / SUS304 / EN 1.4301 |
| Processing Method | Cold Rolled, Annealed, Pickled |
| Surface Finish | 2B (standard); BA or brushed available on request |
| Thickness Range | 0.1 mm – 3.0 mm |
| Width Range | 5 mm – 650 mm (precision slit-to-width) |
| Edge Quality | Burr-free, laser-inspected, Ra ≤ 0.8 µm |
| Thickness Tolerance | ±0.005 mm (0.1–0.5 mm), ±0.02 mm (0.5–3.0 mm) |
| Flatness | ≤ 1.0 I-Unit (for ultra-thin gauges <0.3 mm) |
| Standards | ASTM A666, JIS G4305, EN 10088-2 |
| Certifications | ISO 9001, IATF 16949 (automotive quality system), RoHS, REACH |
| Packaging | VCI paper + PE film + steel pallet; moisture-controlled for export |
Chemical Composition (Per ASTM A240)
| Element | Max/Min Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.75 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 |
| Iron (Fe) | Balance |
This composition ensures a stable austenitic structure, minimizing sensitization during welding and maximizing resistance to pitting in chloride-containing environments.
Mechanical Properties (Annealed Condition)
| Property | Typical Value |
|---|---|
| Tensile Strength | 515–690 MPa |
| Yield Strength (0.2% offset) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | 70–85 HRB / 150–200 HV |
| Density | 7.93 g/cm³ |
| Electrical Resistivity | ~720 nΩ·m |
| Thermal Conductivity | 16.2 W/m·K at 100°C |
These properties support high-speed stamping, fine blanking, and laser cutting—critical for mass-producing micro-components in electronics and precision automotive parts.
Precision Slitting: Zero Burrs for Automated Assembly
In modern manufacturing, edge quality is as critical as material composition. Our advanced slitting technology features:
- Tungsten-carbide tooling with micron-level alignment
- Real-time optical edge monitoring
- Post-slit deburring via non-contact methods (e.g., brushless magnetic finishing)
Result: No micro-burrs, no edge roll, no contamination—ensuring smooth feeding in progressive dies, robotic handling, and cleanroom-compatible production.
Applications in Automotive Manufacturing
| Component | Function | Why 304 Strip? |
|---|---|---|
| EV Battery Tabs & Interconnects | Conduct current between cells | Corrosion-resistant, weldable, low contact resistance |
| Fuel Injector Components | Meter fuel delivery | Resists ethanol blends and high-pressure fuels |
| Sensor Brackets & Housings | Protect electronic sensors | Non-magnetic, stable at -40°C to 150°C |
| Exhaust Heat Shields | Reduce thermal radiation | Oxidation-resistant up to 870°C intermittent |
| Gaskets & Seals | Ensure fluid-tight joints | Formable, maintains seal integrity under vibration |
Our strips meet IATF 16949 requirements, with full PPAP (Production Part Approval Process) support available.
Applications in Electronics Manufacturing
| Component | Function | Why 304 Strip? |
|---|---|---|
| EMI/RFI Shielding Cans | Block electromagnetic interference | Non-magnetic, solderable, thin-gauge formability |
| Battery Current Collectors | Transfer charge in Li-ion packs | High purity, consistent surface for coating adhesion |
| Connector Springs & Terminals | Provide electrical contact force | Excellent springback, fatigue resistance |
| Flexible Circuit Supports | Reinforce FPCs in wearables | Ultra-thin (0.1–0.2 mm), flatness-critical |
| Housings for Medical Sensors | Enclose diagnostic electronics | Biocompatible, sterilizable, aesthetically clean |
For electronics, we offer cleanroom-packaged coils with particle-count certification upon request.
Quality Assurance Tailored to Industry Needs
- Automotive: Full traceability, PPAP documentation, SPC (Statistical Process Control) data
- Electronics: Surface cleanliness testing (per IPC-CH-65), ionic contamination reports
- All Orders: EN 10204 3.1 Material Test Reports, spectrometry certificates, dimensional inspection logs
Every coil is tested for thickness uniformity, width consistency, and surface defects using automated vision systems before dispatch.
Ordering & Customization Options
- MOQ: As low as 50 kg for prototyping; volume discounts for production runs
- Custom Services:
- Cut-to-length sheets (100 mm to 6000 mm)
- Edge rounding or chamfering
- One- or two-side protective film (30–100 µm PE)
- Kitted multi-thickness sets for R&D
- Lead Time: 7–12 days for standard sizes; 15–25 days for custom specs
- Global Shipping: FOB, CIF, or DDP—via air, sea, or land freight
We support VMI (Vendor-Managed Inventory) and JIT delivery for Tier 1 automotive suppliers.
Frequently Asked Questions (FAQ)
Q: Can 304 stainless steel be used in high-temperature automotive exhaust systems?
A: For continuous exposure above 600°C, 321 or 409 stainless is preferred. However, 304 is excellent for heat shields and brackets near exhaust manifolds.
A: For continuous exposure above 600°C, 321 or 409 stainless is preferred. However, 304 is excellent for heat shields and brackets near exhaust manifolds.
Q: Is your 304 strip suitable for laser welding in battery modules?
A: Yes—our low-inclusion, homogeneous microstructure ensures consistent weld penetration and minimal spatter.
A: Yes—our low-inclusion, homogeneous microstructure ensures consistent weld penetration and minimal spatter.
Q: Do you supply material compliant with automotive IMDS or CDX reporting?
A: Yes—we provide full IMDS (International Material Data System) submissions and CDX-compliant documentation.
A: Yes—we provide full IMDS (International Material Data System) submissions and CDX-compliant documentation.
Q: What’s the thinnest burr-free strip you can produce?
A: We routinely supply 0.1 mm (100 µm) strips with certified burr-free edges for medical and electronics applications.
A: We routinely supply 0.1 mm (100 µm) strips with certified burr-free edges for medical and electronics applications.
Conclusion
In the fast-evolving worlds of electric vehicles and miniaturized electronics, material performance directly impacts product reliability, safety, and efficiency. Our precision cold-rolled 304 stainless steel strip is purpose-built to meet these challenges—offering corrosion resistance, dimensional precision, and edge perfection in one high-integrity solution.
Backed by automotive-grade quality systems and deep application expertise, we partner with engineers to turn material specifications into manufacturing success.
precision 304 stainless steel strip, cold rolled stainless for automotive, 304 stainless strip electronics, burr-free stainless coil, EV battery interconnect material, EMI shielding stainless steel, SUS304 strip 0.1mm, IATF 16949 stainless supplier, thin gauge 304 stainless, non-magnetic stainless strip, automotive sensor bracket material, high-precision stainless steel coil.
Recommended Products