Aluminum Wrought Alloys

Stainless Steel Alloys

The initial strength of the non-heat treatable group of alloys depends upon the hardening effects of elements such as manganese, magnesium, silicon, and iron, used singly or in combination. These alloys can be further strengthened only by cold working. Typical uses and characteristics of these alloys are summarized in the following table:

AlloyCharacteristicsUses
1100Excellent corrosion resistance, high thermal and electrical conductivity, excellent workability, readily welded and brazedChemical equipment, spun hollow ware, decorative parts and trim, sheet metal work, cooking utensils, heat exchanger fins
1350Developed especially for electrical conductor useElectrical conductors, coil windings, power transmission systems
3003General purpose, moderate strength, good workability and weldability, high resistance to corrosionCooking utensils, refrigerator panels, chemical equipment, general sheet metal work, eyelet stock, gasoline tanks, heat exchangers, storage tanks
5005Moderate to high strength, good welding properties, good corrosion resistance, forms easily, excellent for anodizing since it exhibits less tendency to structural streakingAppliances, insulation jacketing, cooking utensils, chemical equipment, small boats
5052Excellent resistance to salt water corrosion, good weldability and workability, higher strength than 1100 or 3003 alloys, good finishing characteristicsHome appliances, chemical drums, truck and bus bodies, small boats, sheet metal parts, kitchen cabinets, fencing, fan blades, tank cars and trailers
5086Good forming properties, excellent corrosion resistance in marine environments, excellent weldability, stronger than 5052Shipyard plate, tanks, unfired welded pressure vessels, auto aircraft cryogenics, drilling rigs
AlloyCharacteristicsUses
1100Excellent corrosion resistance, high thermal and electrical conductivity, excellent workability, readily welded and brazedChemical equipment, spun hollow ware, decorative parts and trim, sheet metal work, cooking utensils, heat exchanger fins
1350Developed especially for electrical conductor useElectrical conductors, coil windings, power transmission systems
3003General purpose, moderate strength, good workability and weldability, high resistance to corrosionCooking utensils, refrigerator panels, chemical equipment, general sheet metal work, eyelet stock, gasoline tanks, heat exchangers, storage tanks
5005Moderate to high strength, good welding properties, good corrosion resistance, forms easily, excellent for anodizing since it exhibits less tendency to structural streakingAppliances, insulation jacketing, cooking utensils, chemical equipment, small boats
5052Excellent resistance to salt water corrosion, good weldability and workability, higher strength than 1100 or 3003 alloys, good finishing characteristicsHome appliances, chemical drums, truck and bus bodies, small boats, sheet metal parts, kitchen cabinets, fencing, fan blades, tank cars and trailers
5086Good forming properties, excellent corrosion resistance in marine environments, excellent weldability, stronger than 5052Shipyard plate, tanks, unfired welded pressure vessels, auto aircraft cryogenics, drilling rigs

Temper Designation for Non-Heat Treatable Alloys

Temper designations for non-heat treatable alloys are indicated by suffixes to the alloy number as follows:

  • F As fabricated
  • O Annealed
  • H Strain hardened

The letter “H” is always followed by 2 or 3 digits. The first digit indicates the particular method used to obtain the temper, as follows:

  • H1 Strain hardened only
  • H2 Strain hardened, then partially annealed
  • H2 Strain hardened, then stabilized

The temper is indicated by the second digit. For instance:

  • HX2 1/4 hard
  • HX4 1/2 hard
  • HX6 3/4 hard
  • HX8 full hard
  • HX9 extra hard

The third digit, if given, indicates a special control in one phase of the fabricating process. For instance:

  • H112 Applies to products which acquire some temper from shaping process not having special control over the amount of strain-hardening or thermal treatment, but for which there are mechanical property limits
  • H321 Strain-hardened less than required for controlled H32 temper
  • H323 and H343 Specially fabricated for acceptable resistance to stress-corrosion cracking

The initial strength of the heat treatable group of alloys is heightened by the addition of elements such as copper, zinc, silicon, and magnesium, used singly or in combination. These alloys may be further strengthened by a suitable thermal treatment. Typical uses and characteristics of these alloys are summarized in the following table:

Alloy CharacteristicsUses
2011Good machinability, good mechanical properties, excellent freecutting propertiesScrew machine products, tube fittings, pipe stems, atomizer and hose parts
2017Stronger than 2011, fair workability and corrosion resistance, good machinabilityScrew machine products, rivets, fasteners, aircraft components
2024High strength, formability and workability is fair, may be spot
welded
Aircraft parts, truck wheels, scientific instruments, veterinary and orthopedic braces and equipment
2024 ALCLADCladding provides superior corrosion resistance, good appearanceAircraft frames and skins, washers, truck bodies, railroad car roofs and sides
6013This alloy features B-rated machinability along with improved tensile and fatigue propertiesApplications that require improved machinability over 6061 alloys
6020A lead free alloy with A-rated machinability. High mechanical properties, excellent anodizing response, excellent corrosion resistance, good brazability and weldabilityScrew machine parts
6061One of the most versatile of heat-treatable alloys, good formability and high resistance to corrosion, medium strength relative to 2000 or 7000 alloysTruck and bus bodies, sailboats, canoes, transmission towers, chemical equipment, paper and textile rolls
6063High corrosion resistance, medium strength, good natural finishIrrigation pipe, store fronts, architectural trim, pipe railing, furniture
6101Excellent electrical and thermal conductivity, used for electrical
conductors
High strength bus conductors
6262Excellent machinability, good resistance to corrosion, readily
welded, good finishing characteristics
Screw machine products, camera parts, fittings, nuts, couplings
7050This alloy retains its strength in thicker sections while maintaining good corrosion resistance and toughnessAircraft applications including fuselage frames and bulkheads
7075One of the strongest and hardest alloys available, good machinability, fair corrosion resistance, excellent finishing characteristicsAircraft, ordnance, keys, small gears
7075 ALCLADProvides strength of 7075 with superior corrosion resistance from claddingAerospace applications requiring maximum
corrosion resistance, skis
Alloy CharacteristicsUses
2011Good machinability, good mechanical properties, excellent freecutting propertiesScrew machine products, tube fittings, pipe stems, atomizer and hose parts
2017Stronger than 2011, fair workability and corrosion resistance, good machinabilityScrew machine products, rivets, fasteners, aircraft components
2024High strength, formability and workability is fair, may be spot
welded
Aircraft parts, truck wheels, scientific instruments, veterinary and orthopedic braces and equipment
2024 ALCLADCladding provides superior corrosion resistance, good appearanceAircraft frames and skins, washers, truck bodies, railroad car roofs and sides
6013This alloy features B-rated machinability along with improved tensile and fatigue propertiesApplications that require improved machinability over 6061 alloys
6020A lead free alloy with A-rated machinability. High mechanical properties, excellent anodizing response, excellent corrosion resistance, good brazability and weldabilityScrew machine parts
6061One of the most versatile of heat-treatable alloys, good formability and high resistance to corrosion, medium strength relative to 2000 or 7000 alloysTruck and bus bodies, sailboats, canoes, transmission towers, chemical equipment, paper and textile rolls
6063High corrosion resistance, medium strength, good natural finishIrrigation pipe, store fronts, architectural trim, pipe railing, furniture
6101Excellent electrical and thermal conductivity, used for electrical
conductors
High strength bus conductors
6262Excellent machinability, good resistance to corrosion, readily
welded, good finishing characteristics
Screw machine products, camera parts, fittings, nuts, couplings
7050This alloy retains its strength in thicker sections while maintaining good corrosion resistance and toughnessAircraft applications including fuselage frames and bulkheads
7075One of the strongest and hardest alloys available, good machinability, fair corrosion resistance, excellent finishing characteristicsAircraft, ordnance, keys, small gears
7075 ALCLADProvides strength of 7075 with superior corrosion resistance from claddingAerospace applications requiring maximum
corrosion resistance, skis

Temper Designations for the Heat Treatable Alloys

These alloys can be heat treated to produce stable tempers other than F, O, or H and are designated as follows:

  • T3 Solution heat treated, then cold worked
  • T351 Solution heat treated, naturally aged, stretcher stress relieved
  • T4 Solution heat treated and naturally aged to a substantially stable condition
  • T6 Solution heat treated, then artificially aged
  • T42 Solution heat treated from the O or F temper to demonstrate response to heat treatment, and naturally aged to a substantially stable condition
  • T62 Solution heat treated from the O or F temper to demonstrate response to heat treatment, and artificially aged
  • T651 and T751 Stress relieved by stretching
  • T9 Solution heat treated, artificially aged, and then cold worked

Non-Heat Treatable Alloys

Heat Treatable Alloys