What is ASTM A871 steel and its grades?

ASTM A871 is a low alloy structural steel with high strength. The specification provides improved atmospheric corrosion resistance. ASTM A871 HSLA structural steel plate is suitable for outdoor structural applications where corrosion resistance is essential.
A871 high-strength low-alloy structural steel plate material is available in two grades. Type I has a min yield strength of 415 MPa, whereas it is 480 MPa for Type II grade.

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We are a reputable and affordable supplier of ASTM A871 HSLA structural steel plate in India.

ASTM A871 plate

ASTM A871 grade 60 vs grade 65

The difference between ASTM A871 Grade 60 and 65 is their minimum yield strength. Grade 60 has a min yield strength of 415 MPa and it is 450 MPa for Grade 65.

Mumbai-based stockist of affordable custom-sized ASTM A871 steel plate ideal for usage in poles and tubular structures.

ASTM A871 structural steel plate

ASTM A871 structural steel plate

A871 HSLA plate

A871 HSLA plate

Corten steel ASTM A871 plate

Corten steel ASTM A871 plate

Is ASTM A871 structural steel plate expensive? how much does it cost ?

The cost of ASTM A871 structural steel plates depends on the current market conditions and the size & thickness of the plates. The price also varies with the quantity being purchased and the overall pricing structure of the supplier. Value added services like transportation costs, and any specific requirements for testing or certifications can also influence the overall cost.

To get an accurate cost estimate of the ASTM A871 plate, you can request a quote from Ridhi Siddhi Steel Corporation. They can provide pricing based on your specific requirements and the quantity needed.

We stock and offer corten steel ASTM A871 plate with thicknesses ranging from 0.138 to 2.00 inches and widths ranging from 48 to 120 inches.

ASTM A871 plate specification

ASTM A871 plate specification

 

Thickness Width Length
0.138 – 2 inch 48- 120 inch 72-1020 inch
Grades Application Condition
Gr 60 and 65 tubular structures and poles As rolled, Normalized, Quenched & Tempered
We are the only authorised exporter for A871 high-strength low-alloy structural steel plate with MTC in Dubai, Learn more about the varieties available.
List of ASTM A871 structural steel plate

A871 high-strength low-alloy structural steel plate

A871 high-strength low-alloy structural steel plate

  • Width :48″ to 120″
  • Thickness: 3/16″ to 1 1/4″
  • Length: up to 650″

ASTM A871 steel plate

ASTM A871 steel plate

  • Normalized
  • As-rolled
  • Quenched and tempered

A871 HSLA structural steel plate

A871 HSLA structural steel plate

  • Lighting Poles
  • Sign Posts
  • Transmission Poles
As soon as possible, we commit to supplying ASTM A871 structural steel plate with the required paperwork, view its properties also
Size chart of A871 high-strength low-alloy structural steel plate
WIDTH THICKNESS LENGTH
GRADE 65 48″ – 120″ 3/16″ – 1 1/4″ UP TO 650″
GRADE 60 48″ – 120″ 3/16″ – 1 1/4″ UP TO 650″
ASTM A871 steel plate impact properties
GRADE MINIMUM LONGITUDINAL AVERAGE ABSORBED ENERGY 1)
(ft-lbs)
THICKNESS
(in)
TEST TEMPERATURE
(°F)
60 15 0.138 – 0.500 0
60 15 0.501 – 2.00 -20
65 15 0.138 – 5.000 0
65 15 0.501 – 2.000 -20
Corten steel ASTM A871 plate chemical properties
TYPE I
VANADIUM 0.02-0.10%
MANGANESE 0.80-1.35%
CARBON 0.19% MAX
PHOSPHORUS 0.030% MAX
SILICON 0.30-0.65%
SULFUR 0.030% MAX
CHROMIUM 0.40-0.70%
NICKEL 0.40% MAX
COPPER 0.25-0.40%

 

TYPE II
MANGANESE 0.75-1.35%
CARBON 0.20% MAX
PHOSPHORUS 0.030% MAX
SILICON 0.15-0.50%
SULFUR 0.030% MAX
NICKEL 0.50% MAX
COPPER 0.20-0.40%
CHROMIUM 0.40-0.70%
VANADIUM 0.01-0.10%

 

TYPE IV
COLUMBIUM 0.005-0.05%
MANGANESE 0.50-1.20%
CARBON 0.17% MAX
SULFUR 0.030% MAX
PHOSPHORUS 0.030% MAX
NICKEL 0.40% MAX
SILICON 0.25-0.50%
MOLYBDENUM 0.10% MAX
CHROMIUM 0.40-0.70%
COPPER 0.30-0.50%
ASTM A871 HSLA plate mechanical properties
GRADE TENSILE STRENGTH (KSI) YIELD POINT (KSI) MIN. 8” ELONGATION %
65 80 65 15
60 75 60 16

Which shipping and storage protection strategy is used for ASTM A871 steel plate ?

  • ASTM A871 steel plates are packaged carefully using suitable materials. This will help to prevent surface damage and scratching during transportation.
  • VCI paper or film can be used to wrap the plates. It releases a protective vapor that forms a corrosion inhibiting layer on the steel surface.
  • Measures are taken to control humidity levels during storage to minimize the risk of corrosion.
  • Plates must be handled with care to avoid deformation or damage.
  • If possible, plates are stored indoors to protect them from exposure to moisture and harsh environmental conditions

Which point should be consider during fabrication of ASTM A871 hsla plate?

  • Proper welding techniques and compatible filler materials should be used. This will help avoid issues like welding cracks and brittleness.
  • Depending on ASTM A871 HSLA plate thickness and welding conditions, pre and post weld heat treatment may be necessary. This is to prevent excessive stress and distortion.
  • Cutting and forming operations must be done carefully to minimize surface damage and maintain the integrity of the plates.
  • Plates should be handled with care to prevent deformation and stored in a dry, protected environment.
  • Ensure that the fabrication processes align with the design requirements and specifications for the given application.

Which surface treatments were used on corten steel ASTM A871 plate ?

Corten steel ASTM A871 plate develops a naturally weathered patina on its surface when exposed to atmospheric conditions. This patina acts as a protective barrier against further corrosion. These properties eliminate the need for additional surface treatments like painting or coatings.

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