1045 Hot Roll Plate

C1045 hot roll plate is a silicon killed medium carbon steel. In the as-rolled condition, higher carbon content imparts increased strength over low carbon steels, such as 1018. 1045 hot roll plate is often stress relieved, normalized, or annealed after burning shapes to size to allow for easier machining. 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. Parts made from 1045 hot roll plate can be hammer forged, heat treated for further durability, or used in the non-heat-treated condition. Machinability is good, but forming and welding qualities are limited.

ANALYSIS

1045 hot roll plate conforms to ASTM A830

MECHANICAL PROPERTIES

The above values are average and may be considered as representative of 1045 hot roll plate

APPLICATIONS

1045 hot roll plate has a wide variety of applications. It is used for machinery parts, excellent for die forging and hot upsetting, gears, bolster plates, base plates, wear plates, brake dies etc. 1045 hot roll plate can be flame cut to various shapes for a multitude of uses, both in the hardened or annealed condition. 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. In thicker sections, partial hardening increases strength substantially, and flame or induction hardening produces a high surface hardness

MACHINEABILITY AND WELDABILITY

Machinability is rated at 64% of B1112. Average cutting speed 95 ft/min. 1045 is not readily welded, due to its 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 700° F 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.
Normalizing: 1600° - 1700° F
Annealing: 1400° - 1500° F
Hardening: 1475° - 1550° F

TOLERANCES

SPEEDY METALS ITEMS