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

Stainless Steel 430 Roll Forming Material

1. Overview of 430 Stainless Steel in Roll Forming

430 stainless steel is a ferritic stainless steel known for its low cost, moderate corrosion resistance, and good formability. It contains chromium but little to no nickel, making it significantly more affordable than 304 and 316 grades.

In roll forming, 430 is commonly used for indoor applications, appliances, decorative panels, and light structural components where corrosion exposure is limited.

Compared to austenitic grades (201, 304, 316), 430 offers lower corrosion resistance but better price efficiency.

2. Material Composition & Structure

430 stainless steel consists of:

Iron base metal
Chromium (~16–18%)
Very low nickel content

Structure

Ferritic stainless steel
Magnetic
Lower work hardening than austenitic grades

3. Available Coil Specifications

Thickness Range

0.3mm – 4.0mm

Coil Width

600mm – 1250mm

Coil Weight

2 tons – 8 tons

Coil ID / OD

ID: 508mm / 610mm
OD: up to 1500mm

Tolerance

Good dimensional consistency

4. Mechanical Properties

Typical values:

Yield Strength: 200 – 450 MPa
Tensile Strength: 450 – 600 MPa
Elongation: 20% – 30%
Hardness: 150 – 220 HB

5. Surface Finishes

430 stainless steel is available in:

2B finish
BA (bright annealed)
Brushed finish (No.4)
Polished finish
Decorative finishes

6. Common Roll Forming Applications

Appliance panels (washers, ovens, refrigerators)
Interior wall panels
Decorative trims
Kitchen equipment
Automotive trim
Light structural profiles

7. Advantages of 430 Stainless Steel

Lower cost (no nickel)
Good formability
Magnetic (useful for some applications)
Good surface finish
Suitable for indoor environments

8. Disadvantages / Limitations

Lower corrosion resistance than 304/316
Not suitable for marine environments
Limited outdoor durability
Can discolor or rust in harsh conditions
Lower toughness than austenitic grades

9. Roll Forming Machine Considerations

Roll Tooling

Standard hardened rollers suitable
Smooth surface finish recommended

Speed

10–35 m/min

Lubrication

Recommended

Cutting

Hydraulic shear or flying shear
Standard high-quality blades

Common Issues

Surface scratching
Springback
Edge cracking in tighter bends

10. Common Problems in Production

Surface scratches (especially decorative finishes)
Springback affecting accuracy
Edge cracking in tight profiles
Inconsistent finish quality
Tool wear over time

11. Pricing Guide

Typical global pricing:

Low: $1200–$1800 per ton
Medium: $1800–$2500 per ton
High: $2500–$3200+ per ton

Factors affecting price:

Chromium content
Surface finish
Thickness
Global steel pricing

12. Comparison with Other Materials

430 vs 304 Stainless Steel

430 = cheaper
304 = better corrosion resistance

430 vs 201 Stainless Steel

430 = more stable (less work hardening)
201 = better corrosion resistance

430 vs Galvanized Steel

430 = better finish
GI = cheaper

13. Best Industries Using 430 Stainless Steel

Appliance manufacturing
Interior construction
Automotive trim
Commercial kitchens (low exposure areas)
Decorative metalwork

14. How to Choose 430 Stainless Steel

Choose 430 When:

Budget is important
Indoor applications
Decorative finishes required
Low corrosion exposure

Avoid When:

Outdoor or marine environments
Chemical exposure
High corrosion risk

15. FAQ Section

What is 430 stainless steel?

A ferritic stainless steel with good corrosion resistance and low cost.

Is 430 good for roll forming?

Yes, especially for indoor applications.

Does 430 stainless steel rust?

It can in harsh or outdoor environments.

Is 430 cheaper than 304?

Yes, significantly cheaper.

Is 430 magnetic?

Yes, it is magnetic.

16. Machine Matcher Section

We supply roll forming machines for all material types including 430 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
0.3–4.0mm

Yield Strength
200–450 MPa

Coil Width
600–1250mm

Coil ID
508 / 610mm