跳至主要内容

Low pressure boiler pipe

 Low pressure boiler pipe is made ​​from ingots or solid tube which have been perforated capillary, and then dial made ​​by the hot-rolled, cold rolled or cold.


Seamless steel pipe has a very important position in China's steel industry, the low-pressure boiler tubes and high pressure boiler tubes also plays a important role in the seamless steel pipe. Their application environments are relatively poor and have requirements on temperature and pressure , so the production process of low-pressure boiler steel pipe and high pressure boiler tube is very strict.

Boiler tube means a steel products that open at both ends and has a hollow cross section, its length with the surrounding. According to production methods,it can be divided into seamless and welded steel pipe.

Implementation of standards GB/T3087-2008; representative of the material: 10 #, 20 #;

The main purpose of the low-pressure boiler tubes is used to manufacture a variety of low pressure boilers, superheated steam tube, boiling water tube, water wall tube and locomotive boilers superheated steam pipe, opium pipe, small pipe and brick arch pipe.

General GB3087 low-pressure boiler tubes can bear 130-140 kg of pressure; hydrostatic testing, crimping, flaring, flattening are done apart from ensuring chemical composition and mechanical properties. Hot-rolled delivery with hot rolled condition, cold-rolled (allocated) delivery heat treatment.

标签：

评论

发表评论

此博客中的热门博文

Multi-rifled seamless steel tube

  Multi-rifled seamless steel tube is used as a water wall tube loaded with a highly heated flux and is also expected to find broadened other uses in the viewpoint of iits energy saving effect and higher safety against the overheating damage. This has groove on its inside surface which functions to raise thermal efficiency by distrubing the fluid within the tube, featuring and extremely high thermal conduction property. Available grades and size range: Multi-rifled seamless steel tube are produced to meet specific end use requirements, specifications, tolerances and chemistries. Standard Grade Specification O.D.(mm) W.T.(mm) Number of rib GB/T 20409-2006 20G 15CrMoG SA-210A1 SA-210C SA-213 T2 SA-213 T12 22-83 4.5-13    4-14     Grade and Chemical Composition (%) Steel Grade C Si Mn S P Cr Mo 20G 0.17-0.23 0.17-0.37 0.35-0.65 0.015 0.025 　 　 15CrMoG 0.12-0.18 0.17-0.37 0.40-0.70 0.015 0.025 0.80-1.10 0.40-0.55 A 210A1 SA-210A1 ≤0.27 ≥0.10 ≤0.93 0.020 0.025 　...
发表评论
阅读全文

SA 209 T1

 Seamless carbon molybdenum alloy steel boiler and superheater tubes. ASTM A209 Grade T1a Alloy Steel Seamless Tubes are Carbon Steel Tubes with subsequent addition of chromium, molybdenum and sometimes vanadium are known as chrome Moly Tubes. ASTM Specification alloy steel Tubes are used for high temperature service applications. Seamless Alloy Steel Tubes according to ASTM A209 Grade T1a are reheated and furnished in full annlealed,isothermal annealed or normalised quenched and tempered condition. ASTM A209 Grade T1a Alloy Steel Seamless Tubes have a typical chemistry with additions of 0.44-0.65 Molybdenum. Bearing minimum tensile strength of 365 Mpa ASTM A209 Grade T1a Tubes have a minimum yield strength of 195 Mpa. ASTM A209 ASTM A209 cover several grades of minimum wall thickness seamless carbon molybdenum alloy steel, boiler and superheater tubes. This specification covers tubes 1/2 to 5 in. [12.7 to 127 mm] inclusive, in outside diameter and 0.035 to 0.500 in. [0.9 to 12.7 m...
发表评论
阅读全文

Alloy steel pipes for high pressure service

 The range of Alloy steel pipes for high pressure service pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice. Related informations : European Standards for steel ASTM Standards for steel pipes JIS Seamless Pipe Tubes for Mechanical and Automobile ASTM A335 Pipe Specifications ASTM A333 Pipe Specifications ASTM A213M-09 Standard Specication ASTM A519-89/ASME SA519 Standard specification How to packing the seamless pipe Tubes in small calibers for boilers and petro chemical industry High Temperature service tube Low temperature service tubes Note: This inventory is part of the inventory, demand and other models in stock or order materials, please contact us.
发表评论
阅读全文