hollow bars grinded polished ASTM 304/304L and ASTM316/316L
Stainless steel hollow bars, hot or cold formed, heat treated, pickled or metal bright ASTM304/304L 1.4301 also in grade ASTM316/316L 4401/4404 DIN EN 10088.
If you would like to have a polished surface onto the hollow bar and inside with Ra value until up to 0.4my. Also avaiable with factory acceptance certificate: EN 10204/3.1 We are also able to grind the materials with throatiness according to DIN EN ISO 4287 – Geometrical Product Specifications (GPS) – Surface texture: Profile method – Terms, definitions and surface texture parameters.
hollow bar
outside/inside diameter | thickness | weight kg/mtr | outside/inside diameter | thickness | weight kg/mtr |
32x20 | 6,0 | 3,95 | 106x80 | 13,0 | 30,59 |
32x16 | 8,0 | 4,86 | 106x71 | 17,5 | 39,18 |
36x25 | 5,5 | 4,24 | 106x56 | 25,0 | 51,23 |
36x20 | 8,0 | 5,67 | 112x90 | 11,0 | 28,11 |
36x16 | 10,0 | 6,58 | 112x80 | 16,0 | 38,86 |
40x28 | 6,0 | 5,16 | 112x71 | 20,5 | 47,46 |
40x25 | 7,5 | 6,17 | 112x63 | 24,5 | 54,24 |
40x20 | 10,0 | 7,59 | 118x90 | 14,0 | 36,97 |
45x32 | 6,5 | 6,33 | 118x80 | 19,0 | 47,76 |
45x30 | 7,5 | 7,12 | 118x71 | 23,5 | 56,38 |
45x28 | 8,5 | 7,85 | 118x63 | 27,5 | 63,19 |
45x25 | 10,0 | 8,86 | 125x100 | 12,5 | 35,70 |
45x20 | 12,5 | 10,28 | 125x90 | 17,5 | 47,76 |
50x40 | 5,0 | 5,69 | 125x80 | 22,5 | 58,56 |
50x36 | 7,0 | 7,62 | 125x71 | 27,0 | 67,18 |
50x32 | 9,0 | 9,34 | 132x106 | 13,0 | 39,28 |
50x28 | 11,0 | 10,85 | 132x90 | 21,0 | 59,18 |
50x25 | 12,5 | 11,86 | 132x80 | 26,0 | 69,97 |
56x45 | 5,5 | 7,03 | 132x71 | 30,5 | 78,60 |
56x40 | 8,0 | 9,72 | 140x112 | 14,0 | 44,79 |
56x36 | 10,0 | 11,64 | 140x106 | 17,0 | 53,09 |
56x30 | 13,0 | 14,14 | 140x100 | 20,0 | 60,94 |
56x25 | 15,5 | 15,88 | 140x80 | 30,0 | 83,79 |
56x20 | 18,0 | 17,31 | 160x112 | 24,0 | 82,87 |
60x40 | 10,0 | 12,65 | 170x140 | 15,0 | 59,03 |
63x50 | 6,5 | 9,29 | 170x130 | 20,0 | 76,17 |
63x45 | 9,0 | 12,30 | 170x118 | 26,0 | 95,06 |
63x40 | 11,5 | 14,98 | 170x106 | 32,0 | 112,12 |
63x36 | 13,5 | 16,91 | 175x145 | 15,0 | 60,94 |
63x32 | 15,5 | 18,63 | 180x150 | 15,0 | 62,84 |
65x54 | 5,5 | 8,28 | 180x130 | 25,0 | 98,39 |
70x50 | 10,0 | 15,18 | 180x125 | 27,5 | 106,48 |
71x56 | 7,5 | 12,05 | 190x160 | 15,0 | 66,65 |
71x45 | 13,0 | 19,08 | 190x150 | 20,0 | 86,33 |
71x36 | 17,5 | 23,69 | 190x140 | 25,0 | 104,73 |
75x60 | 7,5 | 12,81 | 190x132 | 29,0 | 118,55 |
75x50 | 12,5 | 19,77 | 190x123 | 33,5 | 133,11 |
75x40 | 17,5 | 25,46 | 200x170 | 15,0 | 70,46 |
80x63 | 8,5 | 15,38 | 200x160 | 20,0 | 91,40 |
80x50 | 15,0 | 24,67 | 200x150 | 25,0 | 111,08 |
80x45 | 17,5 | 27,67 | 200x140 | 30,0 | 129,49 |
80x40 | 20,0 | 30,36 | 212x180 | 16,0 | 79,62 |
85x45 | 20,0 | 32,89 | 212x170 | 21,0 | 101,84 |
90x71 | 9,5 | 19,35 | 212x150 | 31,0 | 142,46 |
90x63 | 13,5 | 26,13 | 212x130 | 41,0 | 178,01 |
90x56 | 17,0 | 31,40 | 224x180 | 22,0 | 112,83 |
90x50 | 20,0 | 35,42 | 224x170 | 27,0 | 135,05 |
95x50 | 22,5 | 41,27 | 224x160 | 32,0 | 156,00 |
100x80 | 10,0 | 22,77 | 224x140 | 42,0 | 194,08 |
100x71 | 14,5 | 31,37 | 236x190 | 23,0 | 124,39 |
100x63 | 18,5 | 38,15 | 236x150 | 43,0 | 210,71 |
100x56 | 22,0 | 43,41 | 240x170 | 35,0 | 182,17 |
106x90 | 8,0 | 19,84 | 250x200 | 25,0 | 142,82 |
106x85 | 10,5 | 25,37 |
Hollowbar inside grinding 0.4my AISI316
Hollow steel internal polishing requires the highest level of technical equipment in stainless steel surface finishing. Due to the very rough surface, special expertise is required to grind the inside of hollowbar made of stainless steel especially in grade AISI 316.