Commercial Pure Iron (CPI)

Commercial Pure Iron (CPI)

Commercial Pure Iron (UNS K02501/K02700) Precision-Engineered Ferrous Material for Demanding Electromagnetic & Structural Applications Material Science Excellence Crystalline Structure Optimization Grain Size Control ASTM 6-8 through patented thermal cycling process Caption: Controlled...
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Description

Product Positioning

Reliable Base Metal for Everyday Industrial Use

Our Commercial Pure Iron (CPI) delivers essential iron properties at 40% lower cost than premium grades. With controlled residuals and proven consistency, it's engineered for structural components, fabrication projects, and non-critical parts where ultra-purity isn't required.

Key Value Matrix

Parameter

CPI Grade

Benefit

Cost Efficiency

$680-720/ton

40% savings vs. 99.95% Fe

Machinability

85% (vs. free-cutting steel)

Reduced tool wear

Weldability

CEW=0.28

No preheat required

Lead Time

72h for stock sizes

Minimize production delays

Controlled Composition

Element

Range

Functional Purpose

Fe

99.80% min

Structural integrity

C

0.03-0.08%

Optimized for weldability

Mn

0.25-0.40%

Enhances strength & forgeability

P

≤0.025%

Improves machinability

S

≤0.020%

Prevents hot cracking

Si

0.10-0.25%

Deoxidation & fluidity

Trace elements (Cu+Cr+Ni) <0.15% total

Standard Product Forms

Form

Dimensions

Key Applications

Round Bars

Ø10-100mm x 3000mm

Shafts, rollers

Flat Plates

6-50mm x 1500x3000mm

Machine frames, bases

Sheets

0.8-3.0mm x 1000x2000mm

Guards, covers

Blocks

100x100x100mm to 300x300x500mm

Fixtures, jigs

Q: Can I achieve Ra 3.2μm surface finish?

A: Yes. With proper feeds/speeds: - Turning: 120m/min, feed 0.15mm/rev - Milling: Carbide tool, 0.05mm DOC

Q: How does CPI perform in cold heading?

A: Optimal for M6-M12 fasteners. Annealed hardness 55 HRB max ensures ≤3% scrap rate.

Q: What's your solution for welding porosity?

A: Use ER70S-6 wire with 20-25 L/min CO₂ flow. Pre-clean oil with acetone (no grinding needed).

Q: Do you supply ready-to-paint material?

A: Stock items come with light oil coating. Specify "pickled & oiled" for painting prep .

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