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Grade A871 0.375 in. x 96 in. x 240 in. steel plate front view.
Grade A871 0.375 in. x 96 in. x 240 in. steel plate right view.
Grade A871 0.375 in. x 96 in. x 240 in. steel plate top view.

ASTM A871 Structural Steel Plate

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

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Features

  • Available in two grades: 60 and 65.

  • Can be made to three types of chemical requirements: Type I, Type II and Type IV.

  • Has properties similar to COR-TEN® steel. Learn more.

  • May be provided as-rolled, normalized or quenched and tempered.

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Product Details

Grade Thickness Width Length
A871-60 3/16" – 1 1/4" 48" – 120" Up to 650"
A871-65 3/16" – 1 1/4" 48" – 120" Up to 650"

Thicknesses greater than 1 1/4" may be special ordered, but are not regularly stocked in our distribution centers.

Grade Yield Point (ksi) Tensile Strength (ksi) Min. 8” Elongation %
60 60 75 16
65 65 80 15
Carbon max 0.19%
Manganese 0.80-1.35%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.30-0.65%
Copper 0.25-0.40%
Vanadium 0.02-0.10%
Chromium 0.40-0.70%
Nickel max 0.40%
Carbon max 0.20%
Manganese 0.75-1.35%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.15-0.50%
Copper 0.20-0.40%
Vanadium 0.01-0.10%
Chromium 0.40-0.70%
Nickel max 0.50%
Carbon max 0.17%
Manganese 0.50-1.20%
Phosphorus max 0.030%
Sulfur max 0.030%
Silicon 0.25-0.50%
Copper 0.30-0.50%
Columbium 0.005-0.05%
Chromium 0.40-0.70%
Nickel max 0.40%
Molybdenum max 0.10%

Grade Comparison

Frequently Asked Questions

Learn more about A871 Steel Plate.
ASTM A871 and ASTM A588 are both corrosion-resistant structural steel plate grades with weathering properties. The main difference is common application: A871 is ideal for tubular structures and poles, while A588 is commonly used for bridges, buildings and other outdoor structural applications.
ASTM A871 is not the same thing as COR-TEN®, but the two are often compared because both have atmospheric corrosion-resistant properties. A871 is an ASTM structural steel plate specification, while COR-TEN is a trademarked steel product. Both are associated with weathering performance for outdoor applications.
ASTM A871 Grades 60 and 65 may be supplied as-rolled, normalized or quenched and tempered to meet required mechanical properties. These terms describe the plate’s delivery condition: as-rolled plate is supplied after rolling, normalized plate is heat-treated to support a more uniform grain structure and quenched and tempered plate is heat-treated through rapid cooling and tempering to achieve required strength and toughness properties.