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Cast Iron

Farmer’s Copper Ltd. maintains an extensive inventory of cast iron, class 40, in solid and rectangle bar. Cast iron possesses the highest strength, hardness, resistance to wear and heat treat response for an unalloyed gray iron. It is widely used for bearing and bushing applications in the hydraulics industry. Tensile strength runs from 27,000-40,000 psi depending on section size.

Cast Iron Class 40

Farmer’s Copper Ltd. continually inventories cast iron…

Farmer’s Copper Ltd. has served the metal industry for over 90 years by satisfying the wants and needs provided by our customers. Contact one of our knowledgeable sales associates today to inquire as to your cast iron needs.

Cast Iron Shapes

Cast Iron Applications

  • Hydraulic cylinders
  • Manifolds
  • Bushings
  • Bearings

Fabrication Properties

Tensile Strength40,000 psi
Compressive Strength150,000 psi
Transverse Strength:Average
Lbs. Load on 1.2" Dia. Bar on 18" Span4,000 psi
Deflection - Inches0.25 - 0.34
Brinell Hardness Range183/285
Microstructure, As CastEssentially Pearlitic
Heat TreatmentCan be Oil-Quench
Hardened from 1575 Degrees F to Attain Rockwell C-50 Min. Surface Hardness
MachinabilityVery Good

ASTM Standard Designation for Cast Iron (Class 40): ASTM A 48

ElementTypical %
Carbon2.9 - 3.65
Silicon1.8 - 2.9
Manganese0.5 – 0.7
Sulphur.1 Max
Phosphorous0.15 Max

Markets Served

Farmer’s Copper Ltd. extends its services throughout many industries. We provide the raw copper alloy materials in various standard shapes as well as custom cut copper alloys.

Our Commitment to Service

As a leading copper, brass, & bronze alloys supplier, Farmers Copper Ltd. attributes our success to serving our customers, through our service-minded employees and material readily available for prompt, accurate deliveries of copper, brass, bronze, stainless steel and other metal alloys.

About Farmers Copper

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