Cheapest Roll Forming Materials: Low Cost Steel & Coil Guide

Cheapest Roll Forming Materials

1. Overview: Finding the Cheapest Roll Forming Material

Choosing the cheapest material for roll forming is critical for:

Reducing production costs
Increasing profit margins
Competing in price-sensitive markets

However, the cheapest material is not always the best — you must balance:

Cost
Performance
Durability
Application requirements

2. What Makes a Material “Cheap”?

Material cost depends on:

Base metal price (steel vs aluminum)
Coating type
Thickness
Grade (strength level)
Global market conditions

👉 Steel is generally cheaper than aluminum because it is more abundant and widely produced, while aluminum requires more energy to manufacture

3. Cheapest Materials Used in Roll Forming

1. Black Steel (Uncoated Steel) — Cheapest Option

Lowest cost material available
No coating
Requires painting or galvanizing later

👉 Best for: internal use, structural parts

2. Mild Steel

Slightly higher cost than black steel
Easy to form
Widely available

👉 Best for: general roll forming applications

3. Galvanized Steel (GI)

Zinc-coated for corrosion protection
Still relatively low cost
Most common industry material

👉 Best for: roofing, cladding, fencing

4. Pre-Painted Steel (PPGI)

Coated and ready to use
Eliminates post-painting costs
Mid-range pricing

👉 Best for: roofing panels and visible products

5. Recoiled / Secondary Steel

Lower-grade or surplus coil
Discounted pricing
May have quality variations

👉 Best for: low-budget production

4. Most Expensive Materials (For Comparison)

Understanding expensive materials helps define what is “cheap”:

Aluminum (2–3x steel cost)
Stainless steel
Copper
Zinc

👉 Aluminum costs significantly more than steel due to production complexity and energy requirements

5. Quick Comparison of Cheapest Materials

Black Steel

Strength: Medium
Corrosion Resistance: Low
Cost: Very Low
Formability: High

Mild Steel

Strength: Medium
Corrosion Resistance: Low
Cost: Low
Formability: High

Galvanized Steel (GI)

Strength: Medium
Corrosion Resistance: High
Cost: Low–Medium
Formability: High

Pre-Painted Steel (PPGI)

Strength: Medium
Corrosion Resistance: High
Cost: Medium
Formability: Medium

Recoiled / Secondary Steel

Strength: Variable
Corrosion Resistance: Low–Medium
Cost: Very Low
Formability: Variable

6. Cheapest Materials by Application

Roofing Panels

GI (best balance of cost and durability)
PPGI (if color is required)

Wall Cladding

PPGI
GI

Flashing & Trim

PPGI
Thin GI

👉 These are exactly the materials most factories use for low-cost production

7. Thickness vs Cost Impact

Material thickness has a major impact on price:

0.3–0.5mm → cheapest range
0.5–0.8mm → standard range
1.0mm+ → higher cost

👉 Thinner material = lower cost but reduced strength

8. Coating Impact on Cost

Lowest Cost:

No coating (black steel)

Medium Cost:

GI (zinc coating)

Higher Cost:

PPGI / PPGL (paint + coating)

Highest Cost:

PVDF coated materials

9. Machine Considerations for Cheap Materials

Advantages:

Easier forming
Less tooling wear
Faster production speeds

Risks:

Inconsistent material quality
Surface defects
Higher reject rates

10. Common Mistakes When Choosing Cheap Materials

Using black steel outdoors (causes rust)
Choosing low thickness for structural use
Ignoring coating quality
Buying poor-quality secondary coil
Not matching material to application

11. Real Cost vs Cheap Cost (Important Insight)

The cheapest material upfront may not be cheapest long-term:

Cheap material → more defects
More rejects → higher production cost
Poor durability → customer complaints

👉 Best strategy = lowest cost that still meets performance requirements

12. Pricing Guide (Typical Global Ranges)

Black Steel: $500–$800/ton
Mild Steel: $600–$900/ton
GI Steel: $700–$1100/ton
PPGI: $900–$1400/ton

👉 Steel prices are significantly lower than aluminum, which can exceed $2000+/ton in many markets

13. How to Choose the Cheapest Material (Step-by-Step)

Define the application
Identify minimum strength required
Select lowest acceptable coating
Choose minimum thickness
Verify machine capability
Test before full production

14. FAQ Section

What is the cheapest roll forming material?

Black steel is the cheapest.

What is the cheapest coated material?

Galvanized steel (GI).

Is GI cheaper than aluminum?

Yes, significantly cheaper.

Can I use cheap materials for roofing?

Yes, GI and PPGI are commonly used.

Is thinner material always cheaper?

Yes, but it reduces strength.

15. Machine Matcher Section

We help you select the lowest-cost material that still meets your production needs.

Material and machine matching
Cost optimization support
Custom-built roll forming machines
Global supply and delivery
UK and USA engineering support

Contact:
Machine Matcher
Sales & Technical Team

Quick Specs

Thickness
0.3–1.2mm

Yield Strength
150–350 MPa

Coil Width
600–1250mm

Coil ID
508 / 610mm