ASTM A871 Structural Steel Plate

Ideal for tubular structures and poles, ASTM A871 is a structural steel with corrosion resistant properties.

Overview:

  • Ideal structural steel for tubular structures and poles.
  • Available in two grades: 60 and 65.
  • Can be made to three types of chemical requirements: Type I, Type II and Type IV.
  • May be provided as-rolled, normalized or quenched and tempered.
  • Has atmospheric corrosion resistance and can be used in bare or unpainted conditions.
  • Thicknesses greater than 1 1/4" may be special ordered, but are not regularly stocked in our distribution centers.

 

Available Sizes

Leeco® Steel stocks the following standard sizes, but other sizes may be available for special orders.

  THICKNESS WIDTH LENGTH
Grade 60 3/16" – 1 1/4" 48" – 120" Up to 650"
Grade 65 3/16" – 1 1/4" 48" – 120" Up to 650"

Material Properties

The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.

Grade Yield Point (ksi) Tensile Strength (ksi) Min. 8” Elongation %
60 60 75 16
65 65 80 15
 

Chemical Composition

The following composition properties are ASTM specifications for the A871 specification. Grades 60 and 65 can be produced with three types of chemical compositions.

 Type I  
Carbon 0.19% max
Manganese 0.80-1.35%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.30-0.65%
Nickel 0.40% max
Chromium 0.40-0.70%
Copper 0.25-0.40%
Vanadium 0.02-0.10%

 

Type II  
Carbon 0.20% max
Manganese 0.75-1.35%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.15-0.50%
Nickel 0.50% max
Chromium 0.40-0.70%
Copper 0.20-0.40%
Vanadium 0.01-0.10%

 

Type IV  
Carbon 0.17% max
Manganese 0.50-1.20%
Phosphorus 0.030% max
Sulfur 0.030% max
Silicon 0.25-0.50%
Nickel 0.40% max
Chromium 0.40-0.70%
Molybdenum 0.10% max
Copper 0.30-0.50%
Columbium 0.005-0.05%