Large caliber brass pipe refers to the larger caliber brass pipe, the maximum diameter of the mouth of the pipe up to 500mm, according to the different needs of processing and production, strong corrosion resistance, can be resistant to strong acids, alkalis and other chemical corrosion, non-toxic, non-rust corrosion, wear-resistant, impact-resistant, resistant to penetration, the surface of the pipe is smooth, does not stick to any substance, can reduce the resistance of the conveyor to improve the flow rate and conveyor efficiency, reduce the conveyance of the pressure loss.
Large caliber brass tube products are: large diameter thin wall brass tube, large diameter thick wall brass tube, large diameter seamless copper tube and other products.
Large-diameter brass tube according to the production method is divided into: drawn tube and extruded tube. According to the shape is divided into: square tube, round tube, shaped copper tube. According to the use of points: seamless copper tube and copper welded tube. Large caliber brass tube specifications general outside diameter of 89mm or more can be called large diameter brass tube.
Product Parameters.
Product state:M (soft), Y2 (1/2 hard), Y (hard) several states.
Grade: H59, H59-1, H62, H65, H68, etc.
1, large diameter brass tube usual length (also known as non-size length): Where the length in the standard length range and no fixed length requirements, are called usual length. For example, structural pipe standards: (extrusion, hot expansion) copper pipe 2000mm ~ 9000mm; cold drawn (rolled) steel pipe 2000mmm ~ 6000mm.
2, fixed length: fixed length should be within the usual length, is required in the contract for a fixed length size. But the actual operation are cut out of the absolute fixed length is unlikely, so the standard fixed length of the permitted positive deviation value.
3, times the foot length: times the foot length should be in the usual length range, the contract should indicate the length of a single times the foot length and constitute a multiple of the total length (for example, 2000mm × 3, that is, 2000mm 3 times the total length of 6000mm). In practice, the total length should be added to the total length of the basis of the allowable positive deviation of 20mm, plus each single times the length of the foot should be left in the cut margin. If the standard length deviation and cutting allowance in the standard, should be negotiated by the supply and demand sides and specified in the contract. Times the length of the scale with the same length of fixed feet, will bring to the production enterprises into the rate of material greatly reduced, so the production enterprises proposed price increase is reasonable, and its price increase with the fixed length of the price increase is basically the same.
4, range length: range length in the usual length range, when the user requires a fixed range of length, need to be specified in the contract.
