Carbon Steel Sheets and Plates

 

 

 

Chemistry (General)

Mechanical Properties

 

Common Name

ASTM Spec.

C max

Mn max

P max

S max

Si max

Tensile Strength

ksi

Yield Strength

ksi

Elong.  In 2”

Brinell

*

Typical Applications

Mild Steel, CQ - Commercial Quality

A569

.15

.60

.030

.035

N/A

52 *

30 to 50

25% min.

108

This material is intended for parts where bending, moderate forming or drawing, and welding may be involved. Used for tanks, barrels, farm implements, etc.

A36, Structural Quality

A36

.25*

.80 – 1.20*

.040

.050

.40

58 to 80

36 min.

23% min.

119 to 159

Used in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes.

Grade 50,

HSLA, High Strength - Low Alloy

A572

A607

A715

A936

.23

.23

.15

.15

1.35

1.35

1.65

1.65

.040

.040

.020

.025

.050

.040

.025

.035

.400

N/A

N/A

N/A

65 min

65 min

60 min

60 min

50 min

50 min

50 min

50 min

21%

22%

24%

22%

135 min.

Used when higher strength, savings in weight, improved formability and weldability are important.  Often used in heavy equipment, truck frames and components.

Grade 80,

HSLA, High Strength - Low Alloy

A656

A715

A936

.18

.15

.15

1.65

1.65

1.65

.025

.020

.025

.035

.025

.035

.600

N/A

N/A

90 min

90 min

90 min

80 min

80 min

80 min

15%

18%

12%

190 min.

Used for the same reasons as grade 50 material, with an even better strength to weight ratio.  Often used in truck frames, crane booms, and rail cars.

Cor-ten, HSLA corrosion resistant

 

A588 B

A606

.20

.22

1.35

1.25

.04

N/A

.05

.04

.50

N/A

70 min

70 min

50 min

50 min

21%

22%

147 min.

Same basic properties as other HSLA steels with added resistance to corrosion.  Often used in bridges or structures where maintenance cost considerations are important.

T-1, Construction Alloys

A514 B

.12 - .21

.70 – 1.00

.035

.035

.20 - .35

110 to 130

100 min

18%

228 min.

Nearly 3 times as strong as A36.  Used as liners for construction equipment, mining machinery, chutes, wear plates, etc.

AR200, ARTN

Abrasion Resistant

N/A

.32 to .36

.90 to 1.30

.35

.05

.04

90 min

 

15%

185 to 235

Primarily used for liners of refuse trucks, cement mixers, mining equipment etc.

 

Grade 50 Comparisons

 

 

 

 

Chemistry (General)

Mechanical Properties

 

ASTM Spec.

ASTM Spec.

C max

Mn max

P max

S max

Si max

Tensile Strength

ksi

Yield Strength

ksi

Elong.  In 2”

Brinell

*

Min. Bend Radius

A570

Structural Steel, Sheet and Strip, Carbon, Hot Rolled

.25

1.35

.035

.040

N/A

65 min

50 min.

17%

 

2 ½ T

A572

High Strength Low-Alloy Columbium-Vanadium Structural Steel

.23

1.35

.040

.050

.400

65 min

50 min

21%

135 min.

2 t

A607

Class 1

Steel Sheet and Strip, High Strength, Low-Alloy Columbium or Vanadium, or Both, Hot-Rolled and Cold-Rolled

.23

1.35

.040

.040

N/A

65 min

50 min

20%

 

2 t

A935

Type 1

Steel Sheet and Strip, Heavy Thickness Coils, High Strength, Low-Ally, Columbium or Vanadium, or Both, Hot Rolled

.23

1.50

.040

.040

N/A

65 min

50 min

20

 

2 t

 

 

Improved Formability Below

 

 

 

 

 

 

 

 

 

 

A656

Type 3

Hot-Rolled Structural Steel, High Strength Low-Alloy Plate with Improved Formability

.18

 

1.65

 

.025

 

.035

 

.600

 

60 min

50 min

23%

 

1 t

A715

Steel, Sheet and Strip, High Strength, Low-Alloy, Hot Rolled, Cold Rolled with Improved Formability

.15

1.65

.020

.025

N/A

60 min.

50 min.

24%

 

1 t

A936

Steel, Sheet and Strip, Heavy Thickness Coils, High Strength, Low-Alloy, Hot Rolled, with Improved Formability

.15

1.65

.025

.035

N/A

60 min

50 min.

22%

 

1 t

                                                                                                                            60

 

 

 

 

AR-400

This steel is heat treated to produce a high strength, high hardness product with a Brinell Hardness range of 360 to 440.

 

 

 

Recommended Fabricating Practices for Cold Forming

(Bend axis transverse (perpendicular) to rolling direction “across the grain”)*

Suggested inside Radii for 90 degree bends for various thicknesses expressed in terms of “t” where t = material thickness

 
Steel
A36 – 36,000 psi Minimum Yield Strength

Thru .250”                    1t

.250 to .500”                 1 ½t

.500 to 1.00”                 2t

 

Grade 50 – 50,000 psi Minimum Yield Strength

(ASTM - A570, A572, A607, and A935)

Thru .187”                    1 ½t

.187 thru .229”              2t

.187 thru .500”              2 ½t

 

Grade 50 - Improved Formability– 50,000 psi Minimum Yield Strength (ASTM - A656 T3, A715, and A936)

Thru .500”                    1t

 

Grade 80 – 80,000 psi Minimum Yield Strength (ASTM A656)

Thru .250”                    2 ½t