News
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Black annealed
Black annealed strictly speaking not an ordinary annealing, but the process and annealing almost. Steel black pipe skin is black oxide! Annealing: annealing the metal alloy is heated to an appropriate temperature and to maintain a certain time, and then slow cooling heat treatment process. Anneal...Read more -
Carbon steel internal defects
Carbon steel pipe internal defects is generated in the carbon steel smelting defect smelting and casting process, such as segregation, non-metallic inclusions, porosity, shrinkage and cracks. Segregation Segregation is the uneven distribution of chemical composition in the steel, in particular ha...Read more -
Quotation sheet for stainless steel welded pipe Nov.2019
Quotation sheet for stainless steel welded pipe （Material：316L、304/304L Standard：ASTM A312，Delivery state ：weld、pickling ） Nominal OD OD SCH 5S SCH 10S SCH 40S Thickness 304 316L Thickness 304 316L Thickness 304 316L N.B IN MM mm $/kg $/kg mm $/kg $/kg mm $/kg ...Read more -
Carbon seamless pipe for fluid transportation
Carbon Seamless Tube for Fluid Transportation Service Application For Tubes in carbon steel pipe For Fluid Transportation Service such like water ,low pressure oil.. Tube Production Standards,Steel Grade,Steel Heat Number: GB/T8163,API 5L PSL1 ,API 5L PSL2 ,ASTM A106 ,ASME,JIS ,EN10204,EN10205 ,B...Read more -
ASTM A517-B specification
1. Product analysis in accordance with specification ASME-Sec II-SA 517 / SA 517M 2. Tension Test in accordance with specification ASME-Sec II-SA 20 / SA 20M 3. Charpy-V-Notch Impact Test in accordance with specification ASME-Sec II-SA 20 / SA 20M 4. Bend Test in accordance with specification ASM...Read more -
API 5CT Seamless steel tubing
API 5CT is a standard on the oil casing by American Petroleum Institute, mainly for the oil pipe, tubing and casing. API 5CT oil casing used in oil well drilling, which is mainly used for drilling and completion of the right wall of the support, to ensure that the conduct and completion of the dr...Read more