1045 Hot Roll Rounds

C1045 hot roll is a silicon killed medium carbon steel. Higher carbon content imparts increased strength over low carbon steels, such as 1018. Response to heat treatment is excellent and the resultant mechanical properties which can be obtained permit wide usage in the production of machinery parts and shafts. 1045 can be hammer forged, machinability is good, but forming and welding qualities are limited.

ANALYSIS

1045 hot roll bars conforms to ASTM A576

APPLICATIONS

1045 hot roll rounds has a wide variety of applications. It is used for machinery parts, die forging, hot upsetting, gears, crankshafts, shafts, axles, bolts, studs, pinions, etc. Can be hammer forged. 1045 can be used where greater strength is required than can be obtained from the lower carbon steels. It responds to heat treatment, and a wide range of properties can be obtained. When higher dimensional accuracy and straightness in the productions of shafts are required, 1045 Turned, Ground and Polished Precision Shafting is recommended

MACHINEABILITY AND WELDABILITY

Machinability is rated at 64% of B1112. Average cutting speed 95-120 ft/min.
1045 is not readily welded, due to it's higher carbon content. On thin sections, arc or gas welding can be used without preheating, but in welds and joints on thicker sections, preheating is necessary. Stress relieving after welding is also recommended.

HEAT TREATING

1045 is a water or oil quenched metal. The recommended quenching temperatures are 1550°F for water and 1575°F for oil. A wide range of mechanical properties can be obtained by tempering at different temperatured between 700F. and 1300°F. Tempering below 700°F should be avoided. 1045 can be flame or induction hardened, but not recommended for carburizing or cyaniding treatments.

TOLERANCES

SPEEDY METALS ITEMS