1045 Steel Plate | Precision Grinding, Inc.

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1045 Steel Plate

1045 steel plate1045 Steel General Information

The 1045 steel plate product is often used to manufacture large sprockets and steel gears for the paper industry and other processing industries.  Coal, Iron, rock, stone, gravel, and even cement are processed and transported every day using parts made from 1045.  As a result, engineered systems such as moving systems, crushing systems, curing and drying systems handle enormous tonnages of raw materials while processing them into smaller, more refined, or mixed applications.

1045 plate is a Chemistry plate, meeting the chemistry make-up listed below.  The “10” designates a basic plain carbon steel and “45” designates the approximate carbon content.

Like the 1020 specification, the 1045 steel specification is included in the ASTM 830 family of specifications.  The ASTM A830 specification covers approximately 48 Chemistry plates, ranging from G10060 – G15520, non-inclusively.  Among other mills, ArcelorMittal and Nucor manufacture plates to the ASTM A830 specification.

High Strength Steel

Precision Grinding works with design engineers, job shops, parts and machine manufacturing companies, and even processing plants themselves to manufacture custom steel component parts used in the processing equipment that services these industries.  Besides offering higher-strength steels such as 1045, we also manufacture mining equipment parts and other wear plates for systems requiring wear resistance in addition to high strength properties.  We manufacture steel parts according to specifications as laid out by the mechanical engineers for fabrication job shops and for the plants themselves.

Looking for a quick estimate on 1045 steel?  Call us at (888) 934-7463 or submit a Request for Quote now!

Common Uses of 1045 Steel Plate

Common uses of 1045: gears, shafts, axles, bolts, studs, sprockets, crushing equipment, pulverizers, & precision conveyor system parts, and other machine parts.

1045 steel plate is also suitable for flame and induction hardening.

Precision Grinding Inc. capabilities:

Mill Certifications or Material Test Reports (MTR’s) are available upon your request.  Material Test Reports (MTR) and Heat Charts listing plate specifications, as listed by the manufacturers from the Mills and from specific Heat Cycles from our ovens, are stored in our files, indefinitely.





1045 steel physical properties table  
Steel Type medium carbon
ASTM Designation ASTM 1045
Common PGI Inventory 0.375″-3.50″ inquire for thicker plate
Minimum Yield Stress (ksi) 45
Average Tensile Strength (ksi) 81.9
Elongation at Breakage 16%
Brinell Hardness 163
Knoop Hardness 184
Approximate Hardness (Rb) 84
Vickers Hardness 170

1045 steel chemical composition table  
% Carbon (C) 0.420 – 0.500
% Iron (Fe) 98.51 – 98.98
% Manganese (Mn) 0.600 – 0.900
% Phosphorus (P) ≤ 0.040
%Sulfur ≤ 0.050


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