Stainless Steel Strip (Precision Slit Coil) — Manufacturer & Supplier
Precision stainless strip for springs, clamps, gaskets, shims, hose clamps, shielding and general fabrication. Slit widths 3–650 mm and thickness 0.05–3.0 mm. Finishes 2B/BA/No.4/HL/8K, round/safety edges, oscillate wound or pancake coils, EN 10204 3.1.
24-hour quote • Bulk Discounts • Custom Slitting • EN 10204 3.1
Why Choose GengFei Stainless Strip?
Precision Slitting
Tight width control, burr height & orientation targets, low camber for stable downstream drawing and stamping.
Finish Consistency
Matched lots in 2B/BA/No.4/HL/8K. Optional PE/PVC film for laser/cutting & cosmetic protection.
Edge Engineering
Mill, slit, deburred, square, round/safety edges for safe handling and crack-free forming.
Logistics & Docs
Oscillate or pancake packing, clear labels, seaworthy crates; EN 10204 3.1 MTR, RoHS/REACH on request.
Grades & Finishes
Common Grades
• Austenitic: 201/202 (cost-efficient), 301/301HQ (spring), 304/304L (general), 316/316L (corrosion), 321
• Ferritic: 409L, 430/439/441 — trim, appliance, heat shields
• Martensitic: 410/420 — blades, wear; check hardness route
• Duplex: 2205 — high strength/corrosion
• PH: 17-7PH — spring strip (on request)
Surface Finishes (Guide)
• 2B — smooth, universal fabrication finish (Ra ~0.2–0.5 μm)
• BA — bright annealed mirror-like (Ra ~0.03–0.1 μm)
• 2D — dull cold-rolled/annealed/pickled base
• No.3 / No.4 / HL — brushed decorative; use film
• 8K — high-gloss mirror; laser film available
Supply Range
All dimensions customizable. “On the plain” = base sheet thickness excluding lug height.
| Parameter | Capability | Notes |
|---|---|---|
| Thickness | 0.05–3.0 mm | Thinner/thicker by inquiry |
| Width | 3–650 mm | Custom slit programs |
| Coil ID / OD | 200/300/400/508/610 mm / up to ~1200 mm | Per grade & line |
| Coil Form | Oscillate wound • Pancake | Long lengths with fewer changeovers |
| Finishes | 2B, BA, 2D, No.3, No.4/HL, 8K | Dry/oil; PE/PVC films |
| Edge | Mill, slit, deburred, round/safety, square | Burr height targets per PO |
| Docs | EN 10204 3.1, MTR, CoC | RoHS/REACH available |
Dimensional Tolerances (Typical)
Per ASTM A480 / EN ISO 9445 (cold-rolled strip). Tighter thickness, width, flatness, camber and burr limits can be agreed on the PO.
| Metric | Typical Control | Comment |
|---|---|---|
| Thickness | per gauge class | e.g., ±0.02–0.05 mm (thin) |
| Width | ±0.05–0.15 mm | depends on width & gauge |
| Camber | ≤3 mm in 3 m (typ.) | tight on spring strip |
| Burr Height | ≤10% t (typ.) | or per buyer target |
Hardness / Tempers
Annealed, 1/8, 1/4, 1/2, 3/4, Full Hard (and Extra Full for 301). Austenitic per ASTM A666; spring-temper per buyer spec.
Applications
Springs & Clips
301/17-7PH spring strip for resilient parts, hinges, clamps.
Clamps & Hose Clamps
304/316 and ferritic 430/439 for automotive and appliance.
Gaskets & Shims
Precision strip/shim stock for spacing, sealing, leveling.
Shielding & Enclosures
EMI/RFI shielding, formed covers & brackets.
Appliance & Architecture
BA/HL strip for trims, facias and decorative profiles.
General Fabrication
Laser, stamping, bending with protective films.
Processing & Value-Add
• Precision slitting with burr & camber control
• Edge: deburred, round/safety, square; edge conditioning
• Brushing, polishing (No.4/HL/8K)
• Film lamination (PE/PVC; laser-friendly options)
• Blanking & cut-to-length strips
Coil Weight & Length
Oscillate wound for long continuous length (fewer press changeovers); pancake for general fabrication and service centers.
Mass formula: kg/m = thickness(mm) × width(mm) × 0.00793.
Example: 0.50 mm × 100 mm → 0.50 × 100 × 0.00793 ≈ 0.396 kg/m.
Standards & Compliance
Material & Product
- ASTM A240 — Plate, sheet & strip (grades)
- ASTM A480 — General requirements (tolerances, finish)
- ASTM A666 — Annealed & cold-worked austenitic sheet & strip
- EN 10088-2 — Stainless flat products (strip/sheet)
- EN ISO 9445-1/2 — Tolerances for cold-rolled narrow/wide strip
- JIS G4305 — Cold-rolled stainless sheet & strip
Documentation & Environment
- EN 10204 3.1 — Mill test certificates
- RoHS / REACH — Declarations upon request
- Traceability — Heat/lot labels; packing list & CoC
FAQs
1) What thickness and width ranges can you slit?
0.05–3.0 mm thickness and 3–650 mm widths (typical). Wider formats available as sheets or wide coils.
2) What finishes are available?
2B, BA, 2D, No.3, No.4/HL, and 8K mirror; dry or oil; PE/PVC protective films including laser-friendly films.
3) Can you supply round/safety edges?
Yes—mill, slit, deburred, square and round/safety edges with burr height targets and orientation control.
4) What coil IDs and forms do you offer?
Coil IDs 200/300/400/508/610 mm; pancake or oscillate wound for long continuous length.
5) Which grades are suitable for spring applications?
301/301HQ and 17-7PH. 304/304L can be used for moderate springiness; consult for temper and work-hardening route.
6) Do you offer EPQ-quality strip?
Yes—electropolishing quality with controlled surface and inclusion; BA or fine 2B base is recommended.
7) What tolerances can you achieve?
Thickness/width/flatness per ASTM A480 or EN ISO 9445; camber and burr set per PO. Tighter controls for spring strip and laser cutting.
8) Can you supply shim stock?
Yes—thin-gauge precision strip in 301/304/316/430 and others, cut to width and length with film if required.
9) How do you pack for export?
Moisture-barrier paper, side protectors, steel banding, desiccants and fumigated pallets/crates with full labels.
10) What are typical lead times and MOQs?
Stock items ship quickly; special grades/finishes add time. Typical MOQ 1–3 tons per spec, with trial coils available.
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