Carbon Plate
TESTING
Churchill Steel Plate offers one of the nation’s largest selections of steel plate, in stock and ready for cutting/shipping.
With thicknesses of up to 24 inches, you’ll find the stock you need. That means savings on shipping costs, grinding and milling and machine time.
![IMG_1769-Edit-[Finished-3906x2604] carbon plate steel at Twinsburg, OH](https://www.churchillsteelplate.com/wp-content/uploads/2019/09/IMG_1769-Edit-Finished-3906x2604.jpg)
ASTM 36
General Description
One of the most widely used carbon steel plate specifications for constructional purposes.
Mechanical Properties
Yield point min. 36 ksi Tensile Strength. 58 ksi/80 ksi Plates >8″ – yield point 32 ksi min
Chemical Requirements
THICKNESS
< 3/4″
>3/4″ – 1 1/2″
>1 1/2″ – 2 1/2″
>2 1/2″ – 4″
>4″
Carbon, max %
Manganese, %
Silicon, max %
0.25
–
0.40
0.25
0.80/1.20
0.40
0.26
0.80/1.20
0.15/0.40
0.27
0.80/1.20
0.15/0.40
0.29
0.85/1.20
0.15/0.40
ASTM A572 (A709)
Grade 50

General Description
General-purpose high-strength low-alloy steel designed to offer optimum combinations of strength, weldability, and notch toughness at economical costs.
Mechanical Properties
- Yield point: min: 50.0 ksi
- Tensile Strength: min: 65.0 ksi
Chemical Requirements
THICKNESS
3/8 – 1 1/2″
>1 1/2″ – 4″
Carbon, max %
Manganese, %
Silicon, max %
0.23
1.35
0.4
0.23
1.35
0.15/0.40
ASTM A830 / C1045

General Description
Medium carbon steel produced to chemistry range only. Good machinability but not readily weldable or formable.
Chemical Requirements
THICKNESS
3/8 – 1 1/2″
>1 1/2″ – 4″
Carbon, max %
Manganese, %
Silicon, max %
0.43/0.50
0.60/0.90
0.15/0.40
0.43/0.50
0.60/0.90
0.15/0.40
Clean-Cut® – 20 LCFM

General Description
Low carbon, free machining steel which ease of machining is prime.
Chemical Requirements
THICKNESS
Thru 3.25”
Carbon, max %
Manganese, %
Silicon, max %
0.14/0.22
1.20/1.50
0.10/0.40
A516-70

General Description
Carbon steel plate with a 70/90 Tensile range. Service in welded Pressure Vessels where improved notch toughness is important.
Mechanical Properties
- Yield point Min 38 ksi
- Tensile strength 70/90 ksi
Chemical Requirements
THICKNESS
1/2″ – 2″
>2″ – 4″
>4″
Carbon, max %
Manganese, %
Silicon, max %
0.28
.85/1.20
0.15/0.40
0.30
.85/1.20
0.15/0.40
0.31
.85/1.20
0.15/0.40