AISI 1025
General Characteristics of AISI 1025
Similar to AISI 1020, AISI 1025 is a low- to medium-carbon alloy appropriate for general engineering and construction applications. Offering good machinability, AISI 1025 can be normalized, hot- and cold-worked, or water quenched and tempered.
Chemical Composition of AISI 1025
- Carbon 0.22-0.28
- Manganese 0.30-0.60
- Phosphorus 0.04 max
- Sulfur 0.050 max
- Silicon 0.15 to 0.30, or:
- 0.10 max
- 0.10-0.20
- 0.20-0.40
- 0.30-0.60
- Iron balance
Heat Treatment of AISI 1025
- Normalize at 1625° to 1700°F (885° to 927°C) before air cooling
- Full anneal at 1575° to 1700°F (857° to 927°C)
- Process anneal after cold working at 1100° to 1225°F (593° to 663°C)
- Harden at 1550° to 1625°F (843° to 885°C) before water quenching
- Can be case hardened
Applications of AISI 1025
- Machinery parts
- Construction components
- Trusses
- Building sections
- Tool and die applications
- Cold-extruded and case-hardened parts
Machinability of AISI 1025
- Readily machined
- Annealed
- Normalized
- Cold-drawn
- Quenched, tempered
- Good surface finish may be compromised from tearing when annealed and normalized
Workability of AISI 1025
- 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
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