Pennsylvania Steel
4320 Alloy Steel Bar Alternative

Superior Steel Alternative to

4150 Alloy Steel

Pennsylvania Steel Corporation offers an alternative to SAE 4150 alloy steel.

We produce FLEXOR® steel to provide similar, if not superior, chemical and machincal properties to 4150 alloy steel. As a result, FLEXOR® can be used as an alternative material for many of the same applications as 4150 steel. These include applications that require a high wear resistance, high resistance to impact and toughness, such as Aircraft and Aerospace Components, Automotive Components, Structural Tubing, Brakes, Clutch and Flywheel Components. Being a proprietary grade, Pennsylvania Steel insures that all FLEXOR® heats meet a high quality vacuum degas electric arc furnace melt process in order to insure cleanliness, grain refinement and maximum reduction ratios.

FLEXOR®'s dependable quality and adaptability in heat treatment allows for a wide range of physical properties that are more appealing than those of typical ASTM, AISI or SAE 4150 alloy steel. FLEXOR® has a higher core hardness, resulting in a more uniform hardness through any cross section. The more uniform hardness and a fine grain microstructure produce a steel that is low weight with high fatigue and tensile strength and is an excellent material for applications that require a lighter weight component with the strength of steel.

FLEXOR® steel is available in a variety of sizes and conditions. These include, but are not limited to, decarb free alloys, hot rolled rounds, peeled steel bars, ground and polished rounds, hot rolled flats, hot rolled plates, turned forged round and billet.

Contact Pennsylvania Steel Corporation today to learn more about FLEXOR® and its advantages over 4150 alloy steel.

The limitations and inferiority of 4150 alloy steel can be frustrating and jeopardize the success of your project or application.

Contact Pennsylvania Steel Corporation today to learn more about FLEXOR® and its advantages over 4150 steel.

TYPICAL FLEXOR® MECHANICALS (Based upon 1.00" dia.)

Mechanical Properties 30 HRC 40 HRC 45 HRC
UTS(ksi) Per ASTM E8-04 147 183 225
YS 0.2% offset Per ASTM E8-04 134 171 205
V-Notch Charpy Impact Per ASTM E23-06 80 45 21
RA% Per ASTM E8-04 64 60 50
Elongation Per ASTME E8-04 21 18 12
Poisson's Ratio per ASTM E111-04 .282
Young's Modulus per ASTM E111 30900 (ksi)

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or call us today at 1-866-935-3967

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