1045 Product Guide

Applications | Specifications | Mechanical and Chemical Data | Tolerances

Overview

A commonly used lower carbon steel with a wide range of applications due to the typical benefits of steel. 1045 steel exhibits medium tensile strength, good weldability and machinability, and high strength. Typically used in machinery parts, die forging, hot upsetting, gears, crankshafts, shafts, axles, bolts, studs, pinions, casters, and support plates.

Common Trade Names

UNS G10450, AISI 1045, C1045

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

Products

1045 Sheet/Plate | 1045 Round Bar | 1045 Rectangle Bar | 1045 Square Bar

Applications

Machinery Parts
Die Forging
Gears
Shafts
Bolts

Specifications

ASTM
A108

	Cold Finish	TGP
Physical Properties 1045
Density	0.284 lb/in3	0.284 lb/in3
Ultimate Tensile Strength	90.6 ksi	97.9 ksi
Yield Tensile Strength	76.9 ksi	58.7 ksi
Shear Modulus	11,600 ksi	11,600 ksi
Shear Strength	59 ksi	59 ksi
Hardness Rockwell \| Brinell	B88 \| 179	B94 \| 212
Elongation at Break Percentage	12%	24%
Reduction of Area	35%	45%
Modulus of Elasticity	29,900 ksi	29,900 ksi
Poisson's Ratio	0.29	0.29
Machinability Percentage	64%	64%
Melting Point	2,590-2,660 °F	2,590-2,660 °F
Specific Heat	1.16 x 10^-1 BTU/lb-°F	1.16 x 10^-1 BTU/lb-°F
Thermal Conductivity	346 BTU-in/hr-ft^2-°F	346 BTU-in/hr-ft^2-°F
Electrical Conductivity	7% IACS	7% IACS

Chemistry Information
Element	Percentage
Fe	98.7
Mn	0.8
S	0.05
C	0.45
P	0.04

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