This is medium-carbon steel. The higher carbon content imparts higher strength properties than 1018. The hot rolled bars used in the manufacture of this product are of special quality. Most bars are cold drawn, although some larger sizes are turned and polished.

When higher degrees of dimensional accuracy and straightness are required, we recommend the use of PRECISION SHAFTING, which is produced by grinding and polishing.

Stock Lengths: 20' Approx.
Unit of Measure

Specifications

Estimated Weight per Foot

N/A 1.044 lb

Estimated Weight 20-Ft. Bar

N/A 20.88 lb

Analysis

N/A 1045
Carbon .43/.50
Manganese .60/.90
Phosphorus .04 Max.
Sulphur .05 Max.

Applications

N/A This material is 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. Applications include shafts, machinery parts, bolts, pinions, gears, etc.

Mechanical Properties

N/A The following values are average and may be considered as representative:
1" rd., cold drawn
Tensile Strength - 110,000 psi
Yield Strength - 85,000 psi
Elongation in 2" - 19%
Reduction of Area - 32%
Brinell Hardness - 223

5" rd., turned & polished
Tensile Strength - 90,000 psi
Yield Strength - 55,000 psi
Elongation in 2" - 26%
Reduction of Area - 50%
Brinell Hardness - 187

Machinability

N/A Machinability rating is approximately 64% based on 1212 as 100%. Average surface cutting speed is between 95 and 105 feet per minute.

Weldability

N/A Due to higher carbon content, this material is not readily welded. With thin sections and flexible design, gas or arc welding may be used without preheating, but in joints over 1/2" to 3/4" thick preheating is necessary. To develop equivalent strength in a weld, a low alloy filler is recommended. Stress relieving after welding is also recommended. The grade of welding rod to be used depends on thickness of section, design, service requirement, etc.

Hardening

N/A This steel is essentially water-hardening, but it may be quenched in oil. 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 temperatures between 700°F and 1300°F. Tempering in the range from 500°F to 700°F should be avoided.