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常问问题

ASTM A53 B和ASTM A106 B钢管之间的区别

ASTM A53 B和ASTM A106 B的区别。ASTM A53 B涵盖ERW,无缝和镀锌钢管。 A106 B仅涵盖用于高温服务的无缝钢管。

LSAW管道和SSAW管道之间的区别

LSAW管道和SSAW管道之间的区别。纵向LSAW管焊接,螺旋SSAW管焊接,LSAW质量优于SSAW。

ERW和HFW钢管的区别

ERW pipe manufacturing process includes HFW. ERW have low, medium, high frequency welding processes, and HFW is specially for high-frequency electric resistance welding. The differences between ERW and HFW steel pipe, is EFW is a type of ERW process for ordinary and thin-wall thickness steel pipes. ERW pipe: Electric Resistance Welded Pipe HFW pipe: High […]

3PE和FBE环氧涂料管的区别

3PE和FBE之间的区别。 3PE涂层钢管具有三层FBE,腐蚀层和PE层,具有FBE和PE的综合优势。

钢管的API 5L PSL1和PSL2差异

API 5L line pipe (Seamless and welded pipe) of all grades have PSL1 and PSL2 two product specifications,?they are different on chemical composition, manufacturing processes, mechanical strength, heat treatment, test records, traceability etc. Line pipes in API 5L PSL2 is higher than PSL1 a. PSL is the short name of product standard level. The product […]

钢抽油杆和小马杆的区别

What is API 11B Steel Sucker Rod Steel sucker rod is a kind of long slender bar used in pumping well, common standard is API SPEC 11B (Specification for sucker rods, polished rods and liners, couplings, sinker bars, polished rod clamps, stuffing boxes, and pumping tees). It connects with polished bar above, and pumps at […]

您需要了解的有关热浸镀锌钢管的知识

What is galvanized steel pipe? Galvanized steel pipe is the carbon steel pipe that are coated with a protective layer of zinc. The zinc layer served as a sacrificial layer, it will get rust before the carbon steel under neath it. Galvanized steel pipe include Two types: hot dipped galvanized steel pipe and cold galvanized […]

消防管道和连接配件

The fire protection pipe and connection fittings are mainly used to connect firefighting equipment, conveying fire fighting water and so on. It is also called fire sprinkler pipe and fittings. Due to the special requirements, the thickness and material of the fire protection pipe and fittings have special requirements. According to the regulations, the fire […]

API 5CT N80-1和N80Q之间的区别

API 5CT N80-1,N80Q用于套管和油管的冲击强度,热处理和无损检测的差异。 N80Q高于N80-1。

钢管行业的热处理方法

碳钢和合金钢管的热处理方法包括正火,退火,回火和淬火。它将改善材料性能。

无缝钢管和焊接钢管的区别

无缝钢管和焊接钢管之间的区别在于性能,制造工艺,应用,尺寸。

EN 10204 3.1和3.2 MTC之间的区别

BS EN 10204:2004 is British Standard that related to different types of inspection documents for steel metal products. There are 4 types for EN 102024, 2.1, 2.2, 3.1 and 3.2, the later two types are the mostly used in steel pipe and plates products, so here we will mainly introduce the major differences between two […]

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