electro-resistance welding carbon steel pipe for ship building

Specification:

Production: Steel pipe / steel tube

Standard: API 5L, ASME, ASTM B36, JIS, DIN, GB8162, GB8163, GB5310, etc.

Out Diameter: DN10~DN1200, 1/8"~100", 6mm~2400mm

Wall Thickness: SCH5~SCH160, STD, XS, XXS, 1mm~120mm

Material: ASTM A106 GRB/ A53 GRB/ API 5L X42, X52, X60, X65, X70GRB/ API 5 CT/ Q345/ ST42/ST37/ ST52. Q195/Q215/Q235/A179etc.

Length: 12m, 11.8m, 6m, 5.8m, or as customers required

Surface treatment: Black painting, black varnish, transparent oil, hot galvanized, 3PE, epoxy coating, BE, PE. Etc.

Technique: Seamless & welded

Usage
1. Low and middle pressure fluid transportation pipeline
2. Casing Tube
3. Boiler Pipe
4. Petroleunm and natural gas industry
5. Chemistry industry
6. Electric industry

Package
1. Bundle packing.
2. Bevelled end or plain end or warnished as per buyer's required.
3. Marking: As per customer's requests.
4. Painting varnish coating on the pipe.
5. Plastic caps at ends.

Test:

1. The test specimens and the tests required by this specification shall conform to those described in the latest issue of Test Methods and Definitions A 370.
2. The longitudinal tension test specimen shall be taken from the end of the pipe or, for continuous-welded pipe, it shall be permissible to be taken from the skelp, ata point approximately 90° from the weld, and shall not be flattened between gage marks. The sides of each specimen shall be parallel between gage marks. If desired, the tension tests are permitted to be made on the full section of pipe. When impracticable to pull a test specimen in full section,
the standard 2-in. [50-mm] gage length tension test speci-men shown in Fig. A2.3 of Test Methods and Definitions
A 370 is acceptable.
3. Transverse weld test specimens from electric-resistance-welded pipe shall be taken with the weld at the center of the specimen. All transverse test specimens shall be approximately 1 1⁄2in. [40 mm] wide in the gage length and shall represent the full wall thickness of the pipe from which the specimen was cut.
4. Test specimens for the bend and flattening tests shall be taken from pipe. Test specimens for the flattening test shall be smooth on the ends and free from burrs.
5. All specimens shall be tested at room temperature.