what is the forming technology of seamless square tube and its applications?
Wednesday, 29 November 2017
Wall thickness of seamless steel pipe is relatively thick, relatively small diameter thick. But the diameter is restricted, and its applications are limited, and production costs, especially for large diameter seamless steel pipe production costs are relatively high. There are mainly three kinds of forming technology of seamless square tube: hot-rolled, cold-drawn and welded. For
- Published in Pipes
Solid CRA, Clad and Lined Pipes
Wednesday, 29 November 2017
Corrosion resistant alloys (CRAs) are commonly used in the oil & gas industry to protect metal assets in the exploration and production, refineries, and processing plants from corrosion. A carbon steel pipe clad with CRA provides a highly economical alternative to the use of solid CRA pipe. The high-density infrared (HDIR) cladding process is a
- Published in Clad Pipe
DIN 1629 carbon seamless steel pipes
Tuesday, 28 November 2017
DIN 1629 is the standard specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements. DIN 1629 applications the overheated boilers, as minimum thickness ferrite and seamless steel pipes, and as heat exchangers via austenitic pipes. The main products of steel / steel grade: DIN1629 ST37.0 DIN1629 ST44.0 DIN1629 ST52.0 Standards: API
- Published in Pipes
ASME B16.9 Butt weld Equal Cross
Wednesday, 22 November 2017
The equal cross is one kind of the pipe cross, just like a equal tee, the equal cross means all the 4 ends of the cross are in same diameter. Materials Carbon steel: ASTM/ASME A234 WPB-WPC Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME
- Published in Butt Weld Tee
ANSI B16.9/B16.28 Butt weld fittings Butt weld returns
Wednesday, 15 November 2017
Butt weld fittings are the most common type of steel fittings used for pipelines above 2 inches of diameter. They are used to change the pathway of the pipeline (elbows), reduce / increase its flow size (reducers), branch (tees, cross) or close it (cap), and are connected to pipes by welding. Butt welding fittings are
- Published in Pipe Fittings
API SPEC 5LD CRA Clad or Lined Steel Pipe
Wednesday, 15 November 2017
This specification covers seamless and welded clad steel line pipe and lined steel line pipe with enhanced corrosion-resistant properties suitable for use in pipeline transportation systems in the petroleum and natural gas industries. The clad and lined steel line pipe specified herein is composed of a carbon steel backing or base material outside (in some
- Published in Clad Pipe
What is NACE MR0175/ISO 15156 Pipe and Fittings?
Friday, 10 November 2017
NACE was established since 1943, full name is The National Association of Corrosion Engineers. The founders were 11 engineers of anti-corrosion of pipeline industry. Till now, NACE has been the largest organization to broadcast knowledge of anti-corrosion and improve skills of corrosion prevention. In NACE standards, MR0175 is the standard of material requirements for H2S
- Published in NACE pipe
comparison between steel pipe and steel tube
Friday, 10 November 2017
One of the most frequent questions we get from customers is “What’s the difference between pipe and tube”? since they are looks like the same products, round shape, hollow in the middle, material in steel metals. Shape Pipes are always round in shape. Tubes can be square, rectangular or round, as shown in the image
- Published in Technology
Solid CRA lined pipe and CRA clad pipe
Friday, 10 November 2017
Solid CRA lined pipes or CRA clad (cladding) pipes are known to be corrosion-resistant that consists of an inner pipe which is also corrosion-resistant and a carbon steel outer pipe which can withstand external and internal pressure CRA clad or lined steel pipe can be equally allocated pressure to backing material & corrosion-resisting to layer.
- Published in Clad Pipe
JIS B2312 Butt weld reducer-weld pipe fittings
Tuesday, 07 November 2017
Specification: Buttweld reducer •Material: Carbon steel as PG 370 (JIS G 3454 STPG370) •Surface: Black paint I Galvanized •Type: Concentric / Eccentric sizes of JIS B2312 Butt weld reducer Size D1 Size D2 DN NPS OD (mm) 20 3/4″ 27.2 DN15 25 1″ 34.0 DN20,DN15 32 1-1/4″ 42.7 DN25,DN20,DN15 40 1-1/2″ 48.6 DN32,DN25,DN20,DN15 50 2″ 60.5 DN40,DN32,DN25,DN20
- Published in Pipe Fittings, Reducer