ASTM A106 Grade B Pipe Suppliers

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ASTM A106 Grade B Pipe Suppliers

EN 10025-2 is European standard, EN 10025-2 Carbon Steel is a steel alloy where carbon is the main alloying element.

Carbon steel can be grouped into 3 categories: Low Carbon Steel (also known as Mild Steel), Medium Carbon Steel and High Carbon Steel.

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ASTM A106 Grade B Pipe starts out as a long, coiled ribbon of steel called a skelp. The skelp is cut to the desired length, resulting in a flat rectangular sheet. In the ERW process, high-frequency electrical current is passed between the edges causing them to melt and fuse together.

Generally, seamless pipe grade A106 , ASTM A106 Grade Bwelded pipe, ASTM A106 Gr.B Seamless Pipe was considered inherently weaker because it included a weld seam.

Seamless pipe lacked this perceived structural flaw and was considered safer. While the apparent advantage is clear, a critique of seamless piping is that the rolling and stretching process produces an inconsistent wall thickness compared to the more precise thickness of steel sheets destined for welding. While it’s true that A106 Grade B or P265GH welded pipe does include a seam that makes it theoretically weaker, techniques of manufacturing and maintaining quality regimens.

WHAT IS ASTM A106 GRADE B PIPE?
ASTM A106 Grades A and ASTM A106 B are obtainable in most sizes and schedule numbers, SA106 Grade B permits higher carbon and manganese contents than Grade A. ASTM A106 Grades A and ASTM A106 B are obtainable in most sizes and schedule numbers. These A106 Seamless Pipe are available in three grades A, B, and C of different different strength. ASTM/ASME A-106/SA-106 grade seamless pipe is one of our most widely used grade of carbon steel and is readily available ex-stock for all standard thicknesses up to SCH160.

ASTM a106 grade b Chemical Requirements:

 

GRADE A

GRADE B

GRADE C

Phosporous, max. %

0.025

0.025

0.025

Sulfur, max. %

0.025

0.025

0.025

Carbon max. %

0.25

0.30

0.35

Manganese %

0.27 to 0.93

0.29 to 1.06

0.29 to 1.06

Silicon, min. %

0.10

0.10

0.10

ASTM A106 grade b pipe Number of Tests Required:

 

NPS

On One Length From Each Lot of

Tensile

5 and smaller
6 and larger 200 or less

400 or less
6 and larger 200 or less

Bonding

2 and smaller

400 or less

Flattening

2 through 5
6 and over

400 or less
200 or less

 

Degree of Bend

Diameter of Mandrel

For Close Coiling

180

8 x nom. dia. of pipe

For Normal A106 uses

90

12 x nom. dia. of pipe

ASTM A106 grade b material Permissible Variations in Outside Diameter

ASTM A106 Seamless Pressure Pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and petrochemical plants,gas refineries, power plants, boilers, and ships where the piping must transport fluids and gasses that exhibit higher temperatures and pressure levels Surface finish standards are outlined in the specification.

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