Shanghai Katalor Enterprises Co.,Ltd

Poor quality 15crmo alloy steel pipe surface prone to scab and crack. High quality 15crmo alloy steel pipe composition uniformity, cold shearing machine tonnage high, cutting head face smooth and tidy, and poor quality material because of poor material, cutting the end of the face will often have the phenomenon of meat, that is uneven, and no metallic luster. Low-quality 15crmo allo y steel pipe prone to folding. Folding is a variety of lines formed on the surface of a 15crmo alloy steel tube, which often runs through the longitudinal of the product. Folding products will crack after bending, the strength of 15crmo alloy steel pipe greatly reduced. The appearance of inferior 15crmo alloy steel tube often has pock phenomenon. The pock is due to the irregularity of the surface irregularities of the 15crmo alloy steel pipe caused by the abrasion of the grooves.

there is a part of our seamless steel pipe A106B stock list, and we can supply the kinds of seamless steel pipe A106B . if you have any need in seamless steel pipe A106B, please contact us freely.

ERW; outer diameter:21.3-660mm thickness:6-25mm LSAW; outer diameter:325-1524mm thickness:6-50mm SSAW: outer diameter:219-3200mm thickness:5-25mm ASTM A334 Grade 9 specification covers several grades of minimum wall-thickness, seamless and welded, carbon and alloy- steel tubes intended for use at low temperatures. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

(1) in the development of S355JR  steel  plate, it is necessary to refine the treatment process and ensure the addition of a number of microalloying elements for strengthening. (2) control of rolling and cooling temperature is the key to the development of rolling, not only to control rolling and cooling, but also to ensure the thickness of the re-rolling  S355JR steel plate , after the temperature of the pressing rate is greater than 60%. (3) the control proportion of  S355JR steel plate   microalloying elements should be scientific and reasonable. (4) after the development of S355JR steel plate, the performance is stable, with the conditions of mass production.

We have our own   ST37.2  welded steel pipe factory and also we have the ST37.2 steel pipe stock. The ST37.2 welded pipe out diameter we can offered is from 21.3mm to 2020mm. The ST37.2  welded pipe  wall thickness we can offered is from 1.8mm to 12.5mm.If you need the competitive ST37.2   steel  pipe price, please don't hesitate to contact with our sales person.

S235JR is a European designation for steel that is better known in Lebanon as St 37-2 according to German standards (DIN), or as E 24-2 according to French standards NF (AFNOR). As for the equivalence in American standards, this steel may be referred to as ASTM A 570 grade 36 (ASTM 570/A 570 M-98, 2000) when sheets or strips of less than 6mm are considered, or to ASTM A 36 Grade 36 (ASTM A36/A 36 M-93a, 1997), or ASTM A 709 Grade 36 (ASTM 709/A 709 M93-a, 1997) when considering other standard shapes and sheet thickness. Table 1 shows a list of corresponding former European designations for this type of steel .

GB/T1591 Q345D steel plate is one of the main products of katalor. Katalor can supply high quality GB/T1591 Q345D steel plate. katalor has a long story in supplying GB/T1591 Q345D steel plate. GB/T1591 Q345D steel plate can be stocked 5000 tons every month ,and we will update the stock every month to cater to the client need of clients of GB/T1591 Q345D steel plate. email: service@katalor.com