productsgrade
2021-09-22
products
class
grade
size（mm）
end
standard
length
pieces
weight
line pipe
psl1
2021-09-20
api5l gr.b pipes come from api spec 5l specification for line pipe with the application of gas, water and oil transportation. standard line pipe has grade designation a and b. api 5l grade b pipe can be two of api 5l product service level (psl), that’s is api 5l gr.b psl1 and
2021-09-18
grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. the molybdenum gives 316 better overall corrosion resistant properties than grade 304, particularly higher resistance to pitting and crevice corrosion in chloride enviro
2021-09-16
astm a213 tp304 stainless steel seamless tube is manufactured by seamless process used in high pressure environment, stainless steel tp304 grade is the most used material due to its high strength and excellent corrosion resistance.304 stainless steel is the most used g
2021-09-14
1. the stainless steel pipe standards in most countries, especially the european union-stainless steel pipe standards, stipulate that all stainless steel seamless steel pipes must be supplied in a solid solution or annealed state to eliminate performance damage caused by cold processing an
2021-09-12
spiral steel pipes require exterior treatment to add durability.1.using solvent and emulsion to clean the surface of the anti-corrosive spiral tube. this can remove the organic material on the surface of the spiral tube, but it cannot remove the surface rust, scale, so
2021-09-10
the type of flange to be used for a piping application depends, mainly, on the required strength for the flanged joint. flanges are used, alternatively to welded connections, to facilitate maintenance operations (a flanged joint can be dismantled quickly and conveniently).
2021-09-08
1. grinding wheel cutting: this is the more commonly used method at present, that is, cutting with a grinder, but there will be more burrs on the pipe port after cutting out. if a fully automatic stainless steel pipe end c burr removal machine can be used in conjunction with the cost cheap
2021-09-06
black steel is a form of non-galvanized steel. the name “black steel” comes due to the appearance of the steel; it has a dark color on the surface of the steel due to iron oxide coating. this steel is important in applications where galvanized steel is not required.bla
2021-09-04
astm a312 tp304 erw or seamless is a titanium stabilized austenitic stainless steel pipe. tp304/ tp304l seamless pipes shall be made by a cold-drawn or hot-rolled process that does not involve welding at any stage of production, while welded pipes shall be made using an automatic welding p
2021-09-02
hot simmering elbow is also called intermediate frequency elbow, and its production process belongs to the scope of thermal expansion.after the straight pipe is unloaded, an induction ring is placed on the portion of the steel pipe to be bent by a bending pipe pushing
2021-08-31
astm a312 / a312m, standard specification for seamless, welded, and heavily cold worked austenitic stainless steel pipes, covering austenitic stainless steels, and manufactured both welded and seamless type for option.asme sa312 is astm a312 equivalent specification.
2021-08-29
mss sp 75 is the standard specification for high-test, wrought, butt-welding fittings which covers factory-made seamless and electric fusion-welded carbon and low-alloy steel butt-welding pipe fittings for use in high-pressure oil and gas transmission and distribution systems, including pi
2021-08-27
standard specification for forged or rolled alloy and stainless steel pipe flanges, forged fittings, and valves and parts for high-temperature service.this standard is issued under the fixed designation a182/a182m, the number immediately following the designation indic
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