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"

Minimum order weight in the USA is 20 tons. For orders weighing less than 20 tons, additional freight surcharges may be applied. Minimum order weight for orders outside of North America is 500 MT.

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%