Cast Iron (Unbreakable)

• Environmental Compliance
• Hazardous Material Handling
• Asbestos Protocols

• Carbon verification (combustion analysis preferred)
• Silicon, iron, phosphorus, sulfur
• Heavy casting grade designation

• Laboratory with combustion/ICP-AES capability

Certified asbestos removal/handling (if sewer pipe >5% of load)

£1–3 million general liability

C <2.5% OR C >4.0%

• Carbon Defines Cast Iron Type
• Outside Range Violates Foundry Spec

Si <1.0% OR Si >3.0%

Silicon affects graphite structure and casting properties

Fe <85.0%

Indicates wrong material type (not cast iron)

P >0.15% OR S >0.15%

Excessive phosphorus/sulfur increases brittleness in heavy castings

>0.8% copper detected

Copper >0.8% affects heavy casting properties

>2% visible copper, brass, aluminum, or stainless

Non-ferrous contamination degrades heavy casting properties

Any visible stainless detected

Stainless steel mixing indicates sorting failure

>3% asbestos residue

• Asbestos Is Environmental Hazard
• Must Be Certified Removal

Any detectable

Any visible

>1% lead-containing paint coating

• Lead-Based Paint Hazard
• Environmental Concern

>2% by weight

Excess oil/hydraulic fluid contaminates foundry furnace