The State Administration of Taxation of the Ministry of Finance, PRC has issued a new policy on export tax rebate rates for some steel products. Starting from May 1, 2021, export tax rebates for some steel products will be abolished.The specific execution time shall be subject to the export date...

The production process of welded steel pipe can be divided to LSAW- Longitudinal Submerged Arc Welded, SSAW Spiral Submerged Arc Welded and Straight seam Electric-Resistance Arc Welding. The process of welded steel pipe. Raw material testing, milling, pre-bending, forming, pre-welding, inte...

The production process of seamless steel pipe can be generally divided to hot rolling, and cold rolling. The production process of hot rolling pipe: billet preparation and checking - pipe billet heating - punch - pipe rolling - diameter steel pipe heating again - set or reduce diameter - heat tr...

First we shoud know what is dom steel pipes. To produce specialty tubing, this procedure uses a drawbench to pull tubing through a die and over a mandrel, allowing excellent control of the inside diameter and wall thickness. dom steel pipes is work hardening that occurs. During cold drawing, t...

Tubing is a pipeline that transports crude oil and natural gas from the oil and gas layer to the surface after drilling is completed. It is used to withstand the pressure generated during the production process. Oil pipe specifications: 8-1240 × 1-200mm The outer diameter of the tubing is gen...

This product has been laser welded using a high-energy and high-density beam for a precise, narrow, and deep penetrating weld for excellent corrosion resistance. Our small diameter stainless tubing is well suited for both fuel and brake line applications. Features a mill finished inner diameter (...

Engineers or designers who need to transport hot fluids through pipes over long distances need to take into account the natural heat losses that will occur along the way. These thermodynamic calculations can be quite complicated, unless certain assumptions are made, a stable condition and the lac...

Cold drawn seamless pipe is a seamless steel pipe with high dimensional accuracy and good surface finish for precision mechanical structures, hydraulic equipment or reinforced sleeves. Difference between cold drawn seamless steel pipe and hot rolled seamless steel pipe The production process ...

Hot finished seamless tube also be caled hot rolled seamless steel pipe,Hot-rolled seamless steel tubes are rolled at a temperature above the recrystallization temperature. Hot rolling is rolling performed above the recrystallization temperature. Hot finished seamless tube delivery status G...

The brief introduction of key points of pipe fitting processing 8.Cutting processCutting is the process of finishing the welding end, structure size and shape tolerance of pipe fittings. The cutting of some pipe fittings also includes the processing of inner and outer diameters. Cutting is mainly...

Non-standard forging flange processing requirements 1.The steel, steel plate material, size and thickness used in the processing of non-standard flanges must be selected in strict accordance with the requirements of the drawings. The overall weight of each non-standard forged flange needs to be ...

Key points of pipe fitting processing (II) The brief introduction of key points of pipe fitting processing 4.The welding method: The welding methods of pipe fittings are commonly used by manual arc welding, gas shielded welding and automatic welding. The manufacturer shall prepare the welding...