Seamless Pipe A106 B Normal Use

Seamless Pipe A106 B Normal Use

ASTM/ASME A106/SA106 seamless carbon steel pipe is used in industrial applications involving high heat, including process piping, boiling plants, compression stations and refineries and other fields. The additional silicon boosts this product’s performance in high-temperature environments, such...

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ASTM/ASME A106/SA106 seamless carbon steel pipe is used in industrial applications involving high heat, including process piping, boiling plants, compression stations and refineries and other fields.

The additional silicon boosts this product’s performance in high-temperature environments, such as steam lines and processing applications.

 

Galaxy steel pipe company offers the widest variety of sizes available in the industry. All of our products are domestically sourced, developed, and produced, which means our customers have immediate access to exactly the products they need for their particular application.
 
A106 Comparative Specifications
 
ASTM106 covers seamless carbon steel nominal wall pipe for high-temperature service, suitable for bending, flanging and similar forming operations. NPS 1-1/2 and under may be either hot finished or cold drawn. NPS 2 and larger shall be hot finished unless otherwise specified. Surface finish standards are outlined in the specification.

Purchaser may specify NDE in lieu of hydrostatic test or neither. Unless otherwise specified, pipe is furnished with plain ends.

Mechanical Properties – Tensile Requirements

 Grade AGrade BGrade C
Tensile Strength, min, psi48,00060,00070,000
Yield Strength, min, psi30,00035,00040,000

Chemical Requirements

ElementGrade AGrade BGrade C
Carbon max. %0.250.300.35
Manganese %0.27 – 0.93 0.29 – 1.06 0.29 – 1.06 
Phosphorus max %  0.0350.0350.035
Sulfur max %0.0350.0350.035
Silicon, min %0.100.100.10
  • Testing Requirements for seamless A106 carbon steel pipe

    • Tensile Test: Either transverse or longitudinal are acceptable for NPS 8 and larger

    • Tensile tests smaller than NPS 8: Longitudinal testing only

    • Flattening Test: NPS 2 and larger

    • Bending Test (cold): NPS 2 and under

       

  • Permissible Variations in Dimension

    • Wall thickness: The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

    • Weights per foot: The weight of any individual length shall not vary more than 10% over and 3.5% under that specified. NOTE – NPS 4 and smaller are weighed in lots. Larger sizes are weighted by individual length.

    • Outside diameter: Shall not vary from standard specified below at any point.

NPSOverUnder
1 ½ and smaller +1/64”-1/64”
2-4+1/32”-1/32”
5-8+1/16”-1/32”
10-18+3/32”-1/32”
Over 18+1/8”-1/32”
  • Lengths of A106 seamless carbon steel pipe
    Lengths of A106 seamless carbon steel pipe must be specified on order. No “jointers” are permitted unless otherwise specified. If no definite lengths are required, the following practice applies:

    • Single random – 16’ – 22’ (5% may be 12’ – 16’)

    • Double random – Minimum length is 22’. Minimum average is 35’ (5% may be between 16’ – 22’)

  • Marking Requirements


    Rolled, die stamped, or paint stenciled (manufacturer’s option).

    • Manufacturer’s name, brand, or trademark

    • A106 A, A106 B, or A106 C

    • Hydrostatic test pressure and/or NDE, or NH if neither is specified

    • Size, length, weight per foot (NPS 4 and larger)

     

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