博文

Relationship between supply and demand for Chinese steel market.

    Chinese steel market changes a lot in 2017.     1. Since Nov, rebar keeps going and is tend to reach history record. According to market data, supply and demand relationship for rebar is changing a lot. One reason is that infrastructural construction is increasing. The other is that rebar stock is decreasing. So demand is more and supply is less, so price will keep increasing.     2. According to global marketing data, overall global mineral exploration marketing is bottoming out. The recession of global mineral exploration has created a positive environment for our mining industry.     3. In Chinese market, all kinds of staple products are increasing, steel products, coal, non-ferrous metals, glasses, concrete, etc, has been hit a record recently.     4. Steel product production capacity in middle east and south east Asia is going up. According data from OECD, in middle east and south east Asia, more and more factories are e...

Testing device for steel pipe

    An automatic hydrostatic testing device suitable for piping and casing is introduced to Sara recently by one of my friends who have worked in steel pipes industry for almost ten years. And as supplier of steel pipes, like seamless steel pipe now, I’ve figured out how important to have a test before the negotiation with customers.     Generally speaking, thread gluing is a common failure of oil piping found during manufacture and operation. So how do we deal with this trouble? First of all, texting devices would be a nice option to guarantee the quality. For example, high precision instruments would be widely used for oil industry to measure the monomial parameters of taper, pitch and height screw for oil pipe, canola and drill shank. We would reduce the risk for various steel pipes after we have these basic testing. Of course, reparing would be another step too. As we all know that tube-lathe is mainly used as processing the petroleum pipeline screw thread and...

How to guarantee the quality of erw carbon steel pipe

    ERW carbon steel pipe with this processing technology has the advantage of heat treatment after welding process to eliminate the weld and heat-affected zone of the residual stress, grain refinement, weld heat affected zone is small, heating speed, which can greatly improve the welding speed and weld quality, and can be un-pickled, shot peening and trimming the strip as a blank, while welding alloy steel, high alloy steel and non-ferrous metal pipe, greatly reducing the unit power consumption, with a set of welding equipment can produce erw carbon steel pipe.     But at the same time, for the erw carbon steel pipe unit, the larger the diameter, the more it is limited by the strip weight and the wall thickness of the raw material, the storage equipment is limited by the spiral looper. In addition, the erw carbon steel pipe unit has a higher linear velocity, arc welding pipe speed is generally 3m / min, do not match each other. Therefore, erw carbon steel pipe uni...

Frequently-used-standards-for-steel-pipes

    There are some rules for foreign business’s promoting, even just the different product’s standards. For example, if you want to sell steel pipes like the ERW steel pipe, it is necessary to have a basic understanding for frequently-used standards for steel pipes.     For American standards: API 5CT, API 5D, API 5L, ASTM A53, A106, A179, A192, A209, A210, A213, A333, A335, A500, A501, A519, ASME and so on.     For Japanese standards: JIS G3441、3444、3445、3452、3454、3455、3456、3461、3462     For German standards: DIN 1629、1630、2391-2、17175     For England standards: BS 3059-2、BS1387     For Europe standards: EN 10210-1、10216-2、10297-2     For Russian standards: GOST and so on     And for Xinyue steel pipe company, for SSAW steel pipes, we have the standards API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS among international steel pipes standards. And for ERW steel pipe, we have...

What is Smls pipe?

    Definition     Smls pipe is a hollow section with no seams around the long strip of steel.     Application     Smls pipe is used in fluid transportation, boiler plant, engineering, machinery processing plant.     Classfication     Smls pipe according to the production method can be divided into hot-rolled tube, cold-rolled tube, cold-drawn tube, extrusion pipe.     According to the shape of a round tube, shaped tube of the points. Shaped tube in addition to square tube and rectangular tube, there are elliptical tube, semi-circular tube, triangular tube, hexagonal tube, convex-shaped tube, plum-shaped tube.     According to the different materials, divided into ordinary carbon structural tube, low-alloy structure tube, high-quality carbon structural tube, alloy structure tube, stainless steel and so on.     According to the special purpose points, a boiler tube, geological tu...

Smls pipe definition and manufacture

    Smls pipe is a kind of long steel with hollow section and no joints. Smls pipe is used for conveying fluid pipe, structure with seamless steel tubes,  compared to the solid round steel, in the bending torsional strength phase at the same time, the weight is lighter, is a kind of economic cross section steel, widely used in the manufacturing of structural and mechanical parts, such as petroleum drill pipe, auto transmission shaft, bicycle frame and construction of steel scaffolding and so on.     Smls pipe made of high quality carbon steel or alloy steel, hot-rolled, cold-rolled (pull) of the points.     Usage     1. Construction categories are: under the pipeline transport up to more, cover the floor when the extraction of groundwater, boiler hot water transport and so on.     2. Machining, bearing sets, processing machinery parts and so on.     3. Electric class: gas transmission, water generation fluid pipe...

Family of seamless steel pipe

    We all have first name after the last name and we may a family if we have same last name. So does for the family of seamless steel pipe, they have different first names like cold draw seamless steel pipe, hot rolled seamless steel pipe, carbon seamless steel pipe and so on.     According to different application, we can get multifarious seamless steel pipes made by different material and production process from supplier. For example, it would be the type of structure purpose like the desk feet when we choose the general structure and mechanical of the steel pipe. Of course, due to the safety consideration for petroleum, gas and other fluids conveying, it seems like the liquid services equipment of seamless steel pipe should have a better character when production. For the steam and boiler manufacturing, it is okay with the low and medium pressure taking of the seamless steel pipe. In addition, for the oil and gas conveying which needs high pressure taking and s...