Place of Origin: China (Mainland) Brand Name: JW Shape: Square
Type: Welded
Packaging & Delivery
Packaging Detail : in bundles
Delivery Detail EX mill days
Seamless Cold- Drawn Precision Honed Tubes
Applicance: hydraulic cylinder usage
Material: ST52. 3 (BK+S) , DIN2391
Honed tube :
Grade: ST 52. 3 BK +S
O. D: 40 to 700 mm
Max length 12m
Straightness: 0. 3 - 1. 0/ 1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H8 to H9
Roughness (Ra) : 0. 2 to 0. 8
Tensile strength: > 60kgf/ mm 2
Yield Point: > 52kgf/ mm 2
Elongation: ?14% MATERIAL CDS STEEL TUBES STRESS RELIVED BK+S (DIN 2391, PART- 2, 1994) CHEMICAL COMPOSITION (% ) SiMnCP (Max. ) S (Max)
0. 50Max<= 1. 60. 22Max0. 0250. 025
MECHANICAL PROPERTIESUTS MinY. S. MinE % MinDELIVERY CONDITION
580N/ mm 2420/ 580N/ mm 210STRESS RELIEVED BKS
WELD ABILITY STEEL GRADES HAVE A VERY GOOD WELD ABILITY ACCORDINGLY TO THE CO mm ON WELDING SYSTEM. (CARBON EQUIVALENT 0. 45) TOLERANCES1. OUTER DIA <40 mm ?0. 2 mm FROM 40 TO 100 mm ?0. 3 mm >100 mm ?0. 5 mm 2. WALL THK <120 mm OD ?5% >120 mm ?7. 5% 3. STRAIGHTNESS 1/ 1000 OF THE TUBE LENGTH 4. INSIDE HONNED DIA ISO H8 5. ROUGHNESS 0. 2- 0. 4? 6. LENGTHS LENGTH<500 +2 mm 500
