MONMET supplies forged and cast components in a vast array of shapes and sizes – from 1 lb. to over 110 tons – using the following alloys:
STEEL:
Carbon Steel: easily forged, harder than stainless steel, and essentially worked as it was by blacksmiths in previous centuries.
Stainless Steel: low-maintenance, low-carbon alloy with minimum 10% chromium, it "stains less" (rusts, corrodes less) than ordinary steel. Crucial for components in corrosive environments.
Duplex Steel: higher in chromium content, more resistant to chloride stress corrosion cracking.
Fact: the pinnacle of New York’s Chrysler Building is one of the most famous examples of stainless steel cladding.
IRON:
Grey Iron: formerly called cast iron, now made from iron-carbon alloys. Easily worked and inexpensive, strong and durable, the most widely used metal in engineering aside from wrought steel. Likely the oldest worked metal.
Ductile Iron: a synthetic metal, with added magnesium and cerium offering higher tensile strength and flexibility than grey iron, greater corrosion resistance than carbon steel.
Ni-hard Iron: hard white cast iron containing 4% nickel and 2% chromium, renowned for its strength.
Ni-resist Iron: 20% nickel content makes it especially resistant to heat and corrosion.
High Chrome White Iron: high chromium content imparts durability and unparalleled resistance to abrasion.
Fact: New York’s SoHo Cast Iron Historic District is so designated for having the world’s highest concentration of cast iron buildings.
BRONZE:
Harder than wrought iron, alloy of copper and a small tin percentage. Lower casting temperature than steel and iron, resists metal fatigue and corrosion better than steel.
Leaded bronze: Leaded bronze: minimal added lead offers excellent anti-friction and machining properties, undiminished bearing capacity and enhanced ability to "wear in."
High-leaded bronze: 10% to 29% lead content enhances lubricity for heavy-duty bushings, bearings and rings in lower-load environments.
Manganese bronze: actually a brass containing manganese, used in heavy-duty mechanical components, including bearings that withstand high speed and heavy loads.
Aluminum bronze: along with manganese bronze, the strongest and most corrosion-resistant bronze, used in bearing bushes.
Nickel bronze: hardness, strength, ductility and wear-resistance, used in gears and machinery bearings.
Fact: A copper frog from Mesopotamia, dating from 3200 B.C., is the oldest known casting.
SPECIALTY ALLOYS:
Titanium: extraordinary tensile strength, lightweight, high corrosion resistance, withstands extreme temperatures.
Aluminum: lightweight, one-third as dense as steel or copper, malleable, ductile, and easily machined and cast.
Magnesium: lightweight, only two-thirds as dense as aluminum, attractive design properties.
Zinc: noted for high impact strength.
Monel®: nickel-based superalloy (along with those listed below) with great mechanical strength, resists high temperatures and creep deformation. Used in components facing highly corrosive conditions.
Inconel®: very resistant to oxidation, corrosion and stress rupture.
Incoloy®: resists corrosion, useful for components subjected to high temperatures.
Waspaloy®: one of the most widely-used wrought superalloys, desirable for gas turbine engine components.
Hastelloy®: resists corrosion by phosphoric acid, sulfuric acid, and oxidizing acid mixtures.
Tungsten: highest melting point of all metals.
Cobalt: eextraordinary creep resistance.
Fact: Monel is used to make valve pistons in the Bach Stradivarius trumpet.