Precision Grinding, Inc. Steel Service Center 1020 Steel Plate products  

According to the four digit alloy numbering system, 1020 Steel is a Hot Roll Chemistry Plate whereby "10" designates a basic plain carbon steel and "20" designates the approximate carbon content. HR 1020 steel is a general purpose, mild, low-carbon steel with good overall, structural steel properties. Automotive, Military and/or Nuclear specifications may call for an additional "ASTM A827" or "ASTM A830" specification listed on the 1020 MTR's, as AISI no longer offers support for the AISI 1020 steel specification.

The ASTM A830 - 2006 specification covers approximately 48 Chemistry plates, ranging from G10060 - G15520, non-inclusively. Among other mills, Arcelor Mittal and Nucor manufacture plates to the ASTM A830 specification. According to the metallurgy department at Arcelor Mittal, Pennsylvania mill, the ASTM A830 specification stands as the most accurate specification regulating the 1020 chemistry.

Alternatively, The ASTM A827 specification covers carbon steel plates, intended for forging, quenching-and-tempering, and similar applications where uniformity of composition and minimal imperfections are important. An additional "F" may designate forged, and an additional "Q" or "QQ" may designate quenched and tempered. ASTM A827 - 2007 is the most recently revised specification written by ASTM International, covering approximately six grades of steel, including the 1020 and 1045 grades. A mill may provide the additional ASTM A827 specification to C1020 on mill-runs whenever a customer demands a certain surface and edge finish. Precision Grinding does not inventory this specialty grade.

1020 plate is a Chemistry plate, meeting the chemistry make-up listed below. 1020 steel demonstrates high machineability capacity and offers excellent welding characteristics.

Precision Grinding offers SAE 1020 steel parts.  Call if you require the ASTM A827 or A830 specification to check our inventory!    888-934-7463 toll free

C1020 - Average Tensile Strength - 58,000.  Minimum Yield Strength - 36,000.

AISI - SAE Number UNS Number CC Mn P (max) S (max) Hardness Equivalents
1020 G10200 0.18 - .23 0.30 - 0.60 0.040 0.050 77 RB , 20RC , 143 Bhn

Under 3/4" thick 1020 has no Manganese requirements.


Plate Cutting
Stress Relief Furnace On-Site
Large Grinding
Large Machining, G&L Mills, Planer Mills
Steel Fabrication

Precision Grinding, Inc., located in Birmingham, Alabama USA, manufactures structural steel parts cut from high grades of plate, including AISI C1020. We offer Flame Cutting & Plasma Beveling, Blanchard Grinding & Surface Grinding, Machining, Steel Fabricating, and full inspections. Save production time while increasing your internal cash flow by ordering structural steel plate products from a One Source supplier. Precision Grinding has been offering large grinding and large machining services and supplying steel plate products since 1971.

With a standard inventory including ASTM A36 from 1/4" - 8" thick, ASTM A572 Grade 50 to 4" thick, ASTM A514 T1 to 4" thick, AISI 1045 to 2 3/4" thick, and SAE 4140 plate from 1/2" - 4" thick, we supply large and small quantities of made to order steel plate shapes. Whatever shape, size or thickness you need cut, ground, or machined, you can count on us to deliver your precision steel parts, on time. We special order additional, non-stock Hot Rolled plate, any size, any grade to match your request. From Carbon Steel to Alloys to Tool Steel to Wear Steel to High-Strength steel plates, we have the capacity to cut, grind, and machine the magnetic grades, from small parts to very large steel parts.

1020 Chemistry Plate

When you need large and thick 1020 steel plate, cut to shape,
Precision Grinding has the capacity to fill your order:

Flame Cutting, Plasma Beveling, Laser Cutting

Blanchard Grinding & Large Surface Grinding

Steel Fabrication Services: Burning, Saw Cutting, Welding, Assembly
Building Machines & Weldments

Multi-Point Inspections Department    Quality Assurance Program

Plate Cutting steel plates to size

Same Day Quotes

Our Sales Department has some of the most knowledgeable and experienced plate processing staff in the industry. Most quote requests are answered on the same day, often times during the same telephone call. When offering quotes for manufacturing complicated parts that require multiple internal departments to consult with each other over production time, some quotes may take a few days to put together. We assure you that you will receive a high priority on your request, and we will delivery you a quality response within a very short time.

At times, when we do not hold your size C1020 plate in our inventory, Precision Grinding sales representatives may ask you if there is an alternative grade, suitable to substitute for your C1020 request. Domestic production of C1020 steel has dwindled during the past five years, and as such, there may not be a reliable domestic source for small quantity orders of non-stock 1020 plate.

Precision Grinding looks forward to establishing a long-term business relationship with you. Please, view pictures of our services.

Please, call 1-888-WE-GRIND (934-7463) or email us at with your next Custom Steel Parts request.