ASTM A106 Standard Specification

ASTM A106 Standard Specification

ASTM A106 pipe is a widely recognized standard for seamless Carbon Steel pipes used in high-temperature environments. This specification covers pipes intended for transporting gases or liquids in refinery and boiler systems where extreme temperatures and pressures are common. Pipes manufactured according to ASTM A106 are expected to perform well under demanding conditions such as bending, flanging, welding, and other forming operations.

Chemical Composition of ASTM A106:

Steel Grade C, max. (%) Mn (%) P, max S, max Si, min Cr, max Cu, max Mo, max Ni, max V, max

Grade A

 0.25 0.27 - 0.93 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08

Grade B

 0.30 0.29 - 1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08

Grade C

 0.35 0.29 - 1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40

0.08

ASTM A106 Mechanical Properties:

Grade Tensile Test MPa or N/mm² Remarks (Similar to JIS)
Minimum Yield Point Tensile Strength
Gr A 205 330 Min (STPG370)
Gr B 240 415 Min (STPG410)
Gr C 275 485 Min (STPG480)

Dimensional Tolerances for ASTM A106 Pipes:

Pipe Type Pipe Sizes Tolerances
Cold Drawn OD ≤48.3mm ±0.40mm
≥60.3mm ±1% mm
WT ±12.5%

Number of Tests Required:

NPS From Each Lot of
Tensile 5 and smaller 400 or less
6 and larger 200 or less
Bending 2 and smaller 400 or less
Flattening 2 through 5 400 or less
6 and over 200 or less
As an industry standard, ASTM A106 pipes are crucial for ensuring reliability in high-pressure, high-temperature applications. The chemical compositions and mechanical properties outlined above provide a comprehensive guide for manufacturers and users alike. Additionally, the dimensional tolerances and testing requirements ensure that these pipes meet stringent quality standards, making them ideal for critical industrial applications. Whether it's for power plants, oil refineries, or other demanding environments, ASTM A106 pipes continue to play a vital role in maintaining operational safety and efficiency.

Galvanized Steel

Galvanized steel refers to the ordinary carbon construction steel after galvanized processing can effectively prevent steel corrosion and rust so as to prolong the service life of steel, including galvanized galvanized and hot dip galvanized. Generally used for building exterior walls, such as glass curtain wall, marble curtain wall, aluminum curtain wall to do columns and stress materials, or used for outdoor telecommunications tower, highway and other open-air construction steel known as galvanized steel, which galvanized galvanized and hot dip galvanized.

Galvanized steel Coil , Galvanized Steel Plate , Galvanised Steel Sheet

Shandong Longhao Steel Group Co., Ltd. , https://www.longhaosteels.com

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