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How Is Steel Pipe Graded?
Sources: this site Click: Date: 2015-9-29 1:3:43
Steel Pipe Is Graded Based On The ASTM (American Society For Testing Materials) Standards And ASME Standards. ASTM International Is The Company That Issues The Standards For Most Of The Steel Pipe Manufactured And ASME Generally Issues Standards For Pressure Bearing Pipes.
Steel Pipe Is Manufactured In Many Different Ways Including Seamless Pipe, Welded Pipe, Casing Pipe. In Addition, There Are Subcategories For Each Type Of Pipe. For Instance There Is Single Welded Pipe, Or Diagonally (Continuously Welded Pipes) Made By Welding The Edges Pf A Single Strip Of Metal Wound Like A Curly-Q Into A Cylinder Shape. So, Each Standard Is Based In Part On The Type Of Manufacturing Process That Creates It.
Pipe Is Graded Is Strength In Terms Of Pressure. Each Type Of Pipe Is Designated With A Code Like API5L PSL2. There Are Then Many Grades For Each Standard ASTM Code Which Determine A Minimum Yield Strength And Minimum Tensile Strength. The Grades Include Grade 1, Grade 2, Grade 3, Then Grade A, Grade B, Grade C And Continue On To Grade X And There Is Minimum And Maximum Pressure Rating Each Grade. For Instance With API5L PSL2 Grade 1 ASTM 252 Pipe The Minimum Yield Strength Is 30,000 PSI And Minimum Tensile Strength Is 50,000 PSI.
Carbon Steel Pipes Like Regular Steel Pipes Are Graded Using The Same Methods. The Ratings Include Temperature And Pressure Levels For A106 Grade B Carbon Steel Pipes, For Instance. These Pipes Are Generally Classified Under The ANSI/ASME Standards Codes.
Steel Pipe Is Manufactured In Many Different Ways Including Seamless Pipe, Welded Pipe, Casing Pipe. In Addition, There Are Subcategories For Each Type Of Pipe. For Instance There Is Single Welded Pipe, Or Diagonally (Continuously Welded Pipes) Made By Welding The Edges Pf A Single Strip Of Metal Wound Like A Curly-Q Into A Cylinder Shape. So, Each Standard Is Based In Part On The Type Of Manufacturing Process That Creates It.
Pipe Is Graded Is Strength In Terms Of Pressure. Each Type Of Pipe Is Designated With A Code Like API5L PSL2. There Are Then Many Grades For Each Standard ASTM Code Which Determine A Minimum Yield Strength And Minimum Tensile Strength. The Grades Include Grade 1, Grade 2, Grade 3, Then Grade A, Grade B, Grade C And Continue On To Grade X And There Is Minimum And Maximum Pressure Rating Each Grade. For Instance With API5L PSL2 Grade 1 ASTM 252 Pipe The Minimum Yield Strength Is 30,000 PSI And Minimum Tensile Strength Is 50,000 PSI.
Carbon Steel Pipes Like Regular Steel Pipes Are Graded Using The Same Methods. The Ratings Include Temperature And Pressure Levels For A106 Grade B Carbon Steel Pipes, For Instance. These Pipes Are Generally Classified Under The ANSI/ASME Standards Codes.
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