ASTM A671 ERW Steel Pipes CA55 CB60 CB65 for Atmospheric and Lower Temperatures

Size range :OD ≥400mm,WT ≥6mm.

Production method:

OD tolerance:±5% of the specified outside diameter.

Out of Roundness: Difference between major and minor outside diameter 1%

Thickness: The minimum wall thickness at any point in the pipe shall not be more than 0.01inch 0.3mm under the specified nominal thickness.

Heat treatment:

1. Without heat treatment

2. Stress released

3. Normalizing

4. Normalizing+Tempering

5. Quenched and tempered

6. Quenched and precipitation heat treated

Testing:

1. Tension Test:

2. Transverse Guided Welded Bend Test

Material: CA55 CB60 CB65 CB70 CB60 CB65 CC70 CD70 CD80 CFA65 CFB70 CFD65 CG100

CH115 CJA115 CJB115 CJE115 CJF115 CJH115 CJP115 CK75 CP85

Referenced Documents

2.1 ASTM Standard:

A20/A20M Specification for General Requirements for Steel plates for Pressure Vessels.

A370 Test Methods and Definitions for Mechanical Testing of Steel Products

A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates.

A530/A530M Specification for General Requirements for Specialized Carbon and

Alloy Steel Pipes

A577/A577M Specification for Ultrasonic Angle-Bram Examination of Steel Plates

A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications

E110 Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable hardness Testers

E165/E165M Practice for Liquid Penetrant Examination for General Industry.

Plate Steel:

A203/A203M Specification for Pressure Vessel Plates,Alloy Steel,Nickel.

A285/A285M Specification for Pressure Vessel Plates,Carbon Steel,Low and Intermediate-Tensile Strength.

A299/A299M Specification for Pressure Vessel Plates, Carbon Sreel,Menaganese-Silicon.