Alloy Information Report for AISI 1029

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General Characteristics of AISI 1029

A low- to medium-carbon alloy with good machinability, weldability, and hot or cold workability, AISI 1029 is ideal for a wide range of construction and engineering applications. With more manganese, AISI 1029 offers higher hardenabilty than the similar AISI 1025.

Chemical Composition of AISI 1029

• Carbon: 0.25-0.31
• Manganese 0.60-0.90
• Phosphorus 0.040 max
• Sulfur 0.50 max
• Silicon (refer to limits from specific producer)
• Iron balance

Heat Treatment of AISI 1029

• Normalize by heating to 1625° to 1700°F (885° to 927°C) before air cooling
• Process anneal after cold working at 1100° to 1225°F (593° to 663°C)
• Full anneal at 1575° to 1650°F (857° to 899°C) before furnace cooling
• Harden
  • Not carburized
  • Heat to 1550° to 1625°F (843° to 885°C)
  • Water quench
  • Temper to appropriate hardness
• Carburized
  • Gradually cool or oil quench from carburizing temperature
  • Reheat to 1450° to 1575°F (788° to 857°C)
  • Oil quench

Applications of AISI 1029

• Cast parts
• Die-formed cams
• Pins
• Bolts
• Trusses
• Rods
• Machinery, case-hardened and cold-extruded parts
• Fire box components
• Boilers
• Pressure vessels
• Press brake, spinning, and explosive forming tools
• Sprocket and chain assemblies

Machinability of AISI 1029

• Readily machinable in several conditions:
• Hot-rolled
• Normalized
• Annealed
• Cold-drawn
• Quenched-and-tempered
• Approximate 63% of B1112 machinability rating
• Good surface finish when quenched and tempered may be compromised from tearing when hot rolled or normalized

Workability of AISI 1029

• Hot roll or forge from 1800° to 2300°F (982° to 1260°C)
• Intermediate annealing required for substantial cold work
• Fully anneal when further cold work will follow extensive cold work

To Send a Request for Quote for AISI 1029, please Click Here, or call 1.973.276.5000 or fax 1.973.276.5050.