Anbao Hydraulic

 DIN2391 ST52 Seamless precision tube   produced with cold drawn and stress relieved is widely used in the automotive industry for the production of engine parts, brake systems, shock absorbers, exhaust systems and other components that require high dimensional and quality precision. according to EN 10305-1: E215, E235, E355  other material according to client's need according to DIN 2391: St35, St45, St52 Delivery condition and thermal processing according to EN and DIN  (DIN designation given in the brackets): +C (BK)  Cold drawn / hard (after the last cold forming no heat treatment) +LC (BKW)  Cold drawn/ soft (the last heat treatment is followed by cold drawing) +SR (BKS)   Cold drawn and stress relieved annealed (after the final cold drawing process the tubes are stress relieved annealed in a cotrolled atmosphere) +A (GBK)  Annealed   (after the last cold drawing process the tubes are annealed in a controlled atmosphere) +N (NBK)...

  Seamless cold drawn precision tube according to EN 10305-1 (DIN 2391), with narrow tolerances, a good surface and special mechanical properties. After the heat treatment +N (NBK) the tubes can be cold formed (bending). Cold drawn seamless tube and pipe is produced by piercing hot billets and subsequent rolling which reduces their diameter and elongates them. This material is then passed through a die and over a mandrel plug to produce an accurate size and gauge which is the essence of the cold drawing process. Outside diameter : EN 10305-1 (DIN 2391) Material : E235 (St. 35) / E355 (St. 52) Version : +C (BK) No heat treatment after cold drawing, cold forming very restricted. : +N (NBK) (annealed) Suitable for cold forming Straightness deviation : Outside diameter > 15 mm = 0,25% of the length Outside diameter 6 - 15 mm (straightened by the eye) Outside diameter < 6 mm = no guarantee for the straightness Wall thickness tolerance : +/- 10% Applications Of Seamless Co...

  EN8 Hard chrome rod is very hot selling in the hydraulic cylinder field, cause this kind of material has good toughness,high tensile strength and good hardness. The high hardness of the EN8 hard chrome rod significantly extends its service life, reducing the need for frequent replacements and thus lowering maintenance costs. ANBAO GROUP very experienced and successful in this kind of steel tube and rod productions.   The manufacturing of ANBAO EN8 Chrome Rod is a complex and precise process. It begins with the melting of the raw materials, carefully proportioned according to the desired chemical composition. The molten steel is then cast into ingots, which are subsequently hot rolled to reduce the cross - sectional area and improve the grain structure of the steel. During the hot - rolling process, the ingots are passed through a series of rolling mills, gradually shaping them into the desired rod form. The temperature and rolling speed are carefully controlled to ensur...