Baojing Steel is a professional supplier of Slit Stainless Steel Coils and Stainless Steel Strips, providing precision slitting services for stainless steel master coils according to customer requirements for width, thickness, tolerance, coil weight, inner diameter, outer diameter and edge condition.
Our stainless steel slitting service converts wide master coils into narrow-width stainless steel coils and strips with controlled dimensional tolerances and consistent edge quality. Slit coils can be supplied in a wide range of austenitic, ferritic, martensitic, duplex and precipitation hardening stainless steel grades.
With flexible processing capabilities and strict quality control, we provide custom-width stainless steel slit coils for applications requiring precise dimensions, stable coil performance and reliable downstream processing.
We supply slit stainless steel coils in a wide range of grades, including:
201 / 202 / 301 / 304 / 304L / 316 / 316L / 321 / 309S / 310S
409 / 430 / 439 / 441 / 444
410 / 410S / 420 / 420J1 / 420J2 / 431
2304 / 2205 / 2507 / S32760
17-4 PH / 15-5 PH / 13-8 Mo / 17-7 PH
Specific grades are available according to ASTM, ASME, JIS, EN, GB/T and customer specifications.
| Item | Specification |
|---|---|
| Product | Slit Stainless Steel Coil / Stainless Steel Slit Strip |
| Processing Method | Precision Coil Slitting |
| Material | Stainless Steel |
| Production Type | Cold Rolled / Hot Rolled |
| Main Grades | 201 / 304 / 304L / 316 / 316L / 321 / 430 / 410 / 420 / 2205 / 2507 |
| Thickness | Customized according to grade and specification |
| Master Coil Width | Customized |
| Finished Slit Width | Customized |
| Number of Slits | Customized |
| Width Tolerance | According to material grade, thickness and customer requirements |
| Thickness Tolerance | According to applicable ASTM / JIS / EN / GB/T standard |
| Coil ID | 508 mm / 610 mm / Customized |
| Coil OD | Customized according to coil weight and processing requirements |
| Coil Weight | Customized |
| Single Coil Weight | Customized according to customer requirements |
| Edge Type | Slit Edge / Mill Edge / Customized |
| Surface | 2B / BA / No.1 / No.4 / HL / 8K / Customized |
| Flatness | Controlled according to applicable standard |
| Burr Control | Controlled according to slitting requirements |
| Standards | ASTM / ASME / JIS / EN / GB/T |
| Inspection | Dimensional / Surface / Mechanical / Chemical / MTC |
| Certificate | EN 10204 3.1 |
| Packing | Export Seaworthy Packing |
| Application | Stamping / Tube Making / Welding / Automotive / Machinery / Fabrication |
Master Coil → Coil Loading → Uncoiling → Leveling → Slitting → Edge Control → Tension Control → Recoiling → Dimensional Inspection → Surface Inspection → Weighing → Packing
The master coil is selected according to the customer's required:
Stainless steel grade
Thickness
Width
Surface finish
Mechanical properties
Applicable standard
Final slit width
Required coil weight
Before slitting, the master coil is checked for surface condition, dimensions, material identification and MTC information.
The stainless steel master coil is loaded onto the slitting line and carefully uncoiled under controlled tension.
Proper tension control helps maintain stable strip movement and minimizes deformation during processing.
The material passes through a leveling section to correct minor coil set and improve flatness and strip stability before precision slitting.
This is particularly important for narrow-width stainless steel strips used in subsequent stamping, forming and tube manufacturing.
The wide master coil is longitudinally divided into multiple narrow strips using precision rotary slitting knives.
The slitting setup is adjusted according to:
Finished strip width
Number of strips
Material thickness
Material grade
Required tolerance
Edge quality
Coil weight
During slitting, the cutting edge is carefully controlled to achieve a clean and consistent slit edge.
Depending on the material and application, edge requirements can include:
Sharpness · Burr Height · Edge Smoothness · Edge Consistency · Edge Straightness
For precision applications, special edge requirements can be discussed before production.
Controlled strip tension is maintained during the slitting and recoiling process to ensure:
Uniform winding
Stable coil shape
Consistent strip alignment
Reduced telescoping
Improved coil stability
After slitting, individual narrow strips are accurately recoiled into finished slit stainless steel coils.
The recoiling parameters can be adjusted according to the customer's requirements for:
Coil ID · Coil OD · Coil Weight · Strip Width · Winding Tension
Finished slit coils are inspected for:
Strip width
Thickness
Width tolerance
Coil ID
Coil OD
Coil weight
Flatness
Edge condition
Dimensional inspection ensures that the finished slit coils meet the agreed technical requirements.
The surface and edges are visually inspected to identify potential:
Scratches
Dents
Roll marks
Oxidation
Surface contamination
Edge cracks
Excessive burrs
Edge deformation
After inspection, the finished slit coils are securely packed for international transportation.
Typical export packing includes:
Waterproof Paper → Protective Film / Waterproof Material → Steel Strapping → Steel / Wooden Support → Export Seaworthy Packing
Customized packing requirements are available for different transportation methods and customer requirements.
Our stainless steel coil slitting service can be customized according to the following parameters:
| Parameter | Customization |
|---|---|
| Stainless Steel Grade | Available |
| Thickness | Available |
| Master Coil Width | Available |
| Finished Strip Width | Available |
| Number of Strips | Available |
| Width Tolerance | Available |
| Coil ID | Available |
| Coil OD | Available |
| Coil Weight | Available |
| Edge Type | Available |
| Burr Requirement | Available |
| Surface Finish | Available |
| Winding Tension | Available |
| Packaging | Available |
| Edge Type | Description |
|---|---|
| Slit Edge | Longitudinal edge produced by rotary slitting |
| Mill Edge | Original edge retained from the master coil |
| Deburred Edge | Edge processed to reduce burrs for specific applications |
| Customized Edge | Special edge requirements according to customer specifications |
For precision applications, edge quality can be controlled according to customer requirements, including:
Burr Height · Edge Smoothness · Edge Straightness · Edge Consistency · Edge Deformation
| Surface | Description | Typical Applications |
|---|---|---|
| 2B | Smooth cold rolled surface | General industrial applications |
| BA | Bright annealed surface | Precision and decorative applications |
| No.1 | Hot rolled, annealed and pickled | Heavy industrial applications |
| No.4 | Brushed / satin surface | Kitchen and architectural applications |
| HL | Hairline finish | Architectural decoration |
| 8K | Mirror polished surface | Decorative applications |
| Customized | Special surface requirements | Specialized applications |
Quality control is carried out throughout the slitting process, from master coil selection to final packing.
Heat Number
Grade
Chemical Composition
MTC Verification
Applicable Standard
Thickness
Width
Width Tolerance
Coil ID
Coil OD
Coil Weight
Flatness
Surface Finish
Scratches
Dents
Roll Marks
Oxidation
Surface Contamination
Edge Straightness
Burr Height
Edge Smoothness
Edge Deformation
EN 10204 3.1 MTC and third-party inspection can be provided according to customer requirements.
Slit stainless steel coils are widely used in industries requiring precise widths, controlled tolerances and consistent strip quality.
Automotive Trim · Exhaust Components · Brackets · Precision Components · Structural Parts
Welded Tubes · Stainless Steel Pipes · Precision Tubes · Heat Exchanger Tubes
Stamped Parts · Deep Drawing · Pressed Components · Metal Components
Electrical Components · Precision Parts · Connectors · Electronic Components
Kitchen Equipment · Food Processing Equipment · Utensils · Commercial Equipment
Architectural Components · Decorative Parts · Elevator Components · Metal Profiles
Machine Components · Precision Parts · Industrial Equipment · Mechanical Components
Finished strip widths can be customized according to your drawings, production line and application requirements.
Controlled slitting parameters provide consistent strip width, edge quality and coil dimensions.
Coil weight can be customized to match your downstream processing equipment and handling requirements.
Available in austenitic, ferritic, martensitic, duplex and precipitation hardening stainless steel grades.
Custom-width slit coils can be supplied ready for stamping, forming, welding, tube manufacturing and other downstream processes.
Precision slitting allows a master coil to be divided into multiple finished widths, helping customers optimize material utilization.
Professional export packing and documentation are available for containerized and international shipments.
| Standard | Reference |
|---|---|
| ASTM | ASTM A240 / A480 and applicable grade standards |
| ASME | ASME SA240 / SA480 |
| JIS | JIS G4305 / applicable standards |
| EN | EN 10088 / applicable standards |
| GB/T | Applicable Chinese stainless steel standards |
| Inspection | EN 10204 3.1 / Third-Party Inspection |
Professional Material Supply
Wide range of stainless steel grades from standard stainless steel to duplex and specialty alloys.
Customized Slitting
Slitting according to required width, tolerance, coil weight and edge condition.
Reliable Quality Control
Strict inspection throughout material selection, processing and final shipment.
Complete Documentation
MTC, commercial invoice, packing list, certificate of origin and other export documents available according to order requirements.
Global Export Experience
Experienced in supplying stainless steel products to customers across Asia, Europe, North America, the Middle East, Oceania, Africa and South America.
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