Stainless Steel Roll Forming Material Guide: Grades, Coil Sizes & Applications

Stainless Steel Roll Forming Material

1. Overview of Stainless Steel in Roll Forming

Stainless steel is a high-performance metal used in roll forming where corrosion resistance, strength, and durability are critical. It contains chromium (typically ≥10.5%), which forms a passive oxide layer that protects against rust and corrosion.

In roll forming, stainless steel is widely used in food processing, medical, construction, transportation, and industrial applications where hygiene, strength, and long-term durability are required.

Compared to aluminum and coated steels, stainless steel offers superior strength and corrosion resistance but comes with higher cost and more demanding forming requirements.

2. Material Composition & Structure

Stainless steel consists of:

Iron base metal
Chromium (≥10.5%)
Nickel (in austenitic grades)
Molybdenum (in higher corrosion-resistant grades)

Main Stainless Steel Types:

Austenitic (Most Common)

304, 316
High corrosion resistance
Excellent formability

Ferritic

430
Lower cost
Moderate corrosion resistance

Martensitic

410
High strength
Lower corrosion resistance

Duplex

High strength + corrosion resistance

3. Available Coil Specifications

Thickness Range

0.3mm – 6.0mm

Coil Width

600mm – 1500mm

Coil Weight

2 tons – 10 tons

Coil ID / OD

ID: 508mm / 610mm
OD: up to 1600mm

Tolerance

Tight thickness tolerance
High dimensional accuracy

4. Mechanical Properties

Typical values (vary by grade):

Yield Strength: 200 – 600 MPa
Tensile Strength: 500 – 900 MPa
Elongation: 20% – 50%
Hardness: 150 – 300 HB

5. Surface Finishes

Stainless steel is available in:

2B finish (most common, smooth)
BA (Bright Annealed)
No.4 brushed finish
Mirror finish
Embossed finishes

6. Common Roll Forming Applications

Stainless steel is used in:

Food processing equipment
Medical equipment
Architectural cladding
Roofing systems
Industrial machinery
Exhaust systems
Structural profiles
Cable trays

7. Advantages of Stainless Steel

Excellent corrosion resistance
High strength
Long lifespan
Hygienic surface (easy to clean)
Heat resistance
No coating required

8. Disadvantages / Limitations

High cost
Harder to form than steel or aluminum
Higher tooling wear
Requires more powerful machines
Springback more significant

9. Roll Forming Machine Considerations

Roll Tooling

Hardened rollers required (D2 / carbide)
High surface finish critical

Speed

5–30 m/min

Lubrication

Essential

Cutting

Flying shear or saw cutting
High-strength blades required

Common Issues

Springback
Tool wear
Surface scratching
Work hardening

10. Common Problems in Production

Work hardening during forming
Springback affecting dimensions
Surface scratching
Tool wear
Edge cracking in tight bends

11. Pricing Guide

Typical global pricing:

Low: $2500–$3500 per ton
Medium: $3500–$5000 per ton
High: $5000–$8000+ per ton

Factors affecting price:

Grade (304, 316, etc.)
Thickness
Finish type
Nickel and alloy content

12. Comparison with Other Materials

Stainless Steel vs Aluminum

Stainless = stronger
Aluminum = lighter

Stainless Steel vs Galvanized Steel

Stainless = no coating needed
GI = cheaper

Stainless Steel vs Carbon Steel

Stainless = corrosion resistant
Carbon steel = lower cost

13. Best Industries Using Stainless Steel

Food and beverage
Medical and pharmaceutical
Construction
Automotive
Industrial manufacturing

14. How to Choose Stainless Steel

Choose Stainless Steel When:

Corrosion resistance is critical
Hygiene requirements exist
Long lifespan needed
High strength required

Avoid When:

Budget is limited
Lightweight material required
Simple applications

15. FAQ Section

What is stainless steel?

Steel alloy with chromium for corrosion resistance.

What grade is best for roll forming?

304 is most common, 316 for harsh environments.

Is stainless steel hard to form?

Yes, more difficult than aluminum or mild steel.

Does stainless steel rust?

Highly resistant but not completely immune.

Is stainless steel expensive?

Yes, compared to standard steels.

16. Machine Matcher Section

We supply roll forming machines for all material types including stainless steel.

Custom-built machines to your profile
New machines built to specification
Global delivery available
UK and USA technical support

Contact:
Machine Matcher
Sales & Technical Team

Quick Specs

Thickness
0.3–6.0mm

Yield Strength
200–600 MPa

Coil Width
600–1500mm

Coil ID
508 / 610mm