ASTM 1045 Hot Rolled Steel Bar , Carbon Steel Round Bar / Rod 10 - 350mm

-Dimension: Diameter 4-1600 mm, any length below 16 meters

-Delivery Conditions:

Cold drawn: 4-100 mm

Peeled: 30-160 mm

Grinded: 4- 600 mm

Turned: 130-1200 mm

Hot rolled: 12-320 mm

Hot forged: 130-1600 mm

- EAF+(ESR) or EAF+LF+VD+(ESR)

- HOT rolled; Cold rolled; Forged; Cold Drawn

- Heat Treatment: Untreated, Annealing, N+T, Q+T

- Smelting: EAF+LF+VD (+ESR)

- Surface Finish: Black, Rough Machined, Peeled, Turned or upon request

- UT 100% passed

- Cutting service provided

- Third Party inspection is acceptable (SGS, BV etc.)

Equivalent Grades of 1045 Steel

Chemical Requirements, Composition, %

Mechanical properties

Fabrication and Heat Treatment

Machining

AISI 1045 steel has good machinability in normalized as well as the hot rolled condition. Based on the recommendations given by the machine manufacturers, operations like tapping, milling, broaching, drilling, turning and sawing etc. can be carried out on AISI 1045 steel using suitable feeds, tool type and speeds.

Welding
Certain facts about welding of AISI 1045 steel are:

- AISI 1045 steel is readily welded when correct procedure is followed.
- Welding AISI 1045 steel in through-hardened, tempered and flame or induction hardened condition is not recommended.
- Low hydrogen electrodes are preferred for welding AISI 1045 steel.
- The workpiece is

• Pre-heated at 200°C–300°C (392°F - 572°F)
• Maintained at the same temperature during welding
• Cooled slowly using sand, ashes etc and
• Stress relieved at 550°C - 660°C (1022°F - 1220°F).

Heat Treatment

AISI 1045 is subjected to the following processes:

Forging

• Heat to 850°C - 1250°C (1562°F - 2282°F)
• Hold until the temperature is uniform
• Cool in furnace
   

Annealing

• Heat to 800°C - 850°C (1472°F - 1562°F)
• Hold until the temperature is uniform
• Cool in furnace.
   

Normalizing

• Heat to 870°C - 920°C (1598°F-1688°F)
• Hold until the temperature is uniform
• Soak for 10 - 15 minutes
• Cool in still air

Stress Relieving

• Heat to 550°C - 660°C (1022°F - 1220°F)
• Hold until the temperature is uniform
• Soak for 1 hour per 25mm of section
• Cool in still air

Hardening

• Heat to 820°C - 850°C (1508°F - 1562°F)
• Hold until the temperature is uniform
• Soak for 10 - 15 minutes per 25mm of section
• Quench in water or brine

Tempering

• Re-heat to 400°C - 650°C (752°F - 1202°F ) as required
• Hold until the temperature is uniform
• Soak for 1 hour per 25mm of section
• Cool in still air