Seamless steel pipes for petroleum processing and petrochemical industry made to GOST 550-75

HOT-WORKED PIPES Assortment of group "A", "B". Steel grades 15H5, 15H5M, 15H5VF, 1H2M External diameter, mm Wall thickness, mm Length of pipes, m 76 8 4-12 89 6-8 4-12,1 89 9-10 4-10 102 6-9 4-12,2 102 10 4-11 102 11-12 4-10 108 9-10 4-10 108 11-12 4-9 108 13-14 4-7,5 114 6-8 4-12 114 9-10 4-10 114 11-12 4-8 114 13-14 4-7 127 6-10 4-12,1 127 11-12 4-10 127 13-14 4-8,5 133 6-8 4-11 133 9-10 4-10 133 11-12 4-9 133 13-14 4-8 152 8 4-12,1 152 10 4-10 Assortment of group "A”", "В”. Steel grades 10, 20, 10G2. External diameter, mm Wall thickness, mm Length of pipes, m 76 6-12 Random length from 4,0 to 9,0; more than 9,0 – if agreed; a specified length from 5,0 to 9,0 multiple within specified length; for S=4,5-5,0 mm – до 9,5; for S>22 mm – up to 7,0. 83 6-12 89 5-14 95 5-18 102 5-20 108 4,5-22 114 4,5-24 121 4,5-26 127 4,5-26 133 4,5-26 140 4,5-32 152 4,5-25 159 4,5-25 168 6,0-12      S - wall thickness      Notes:  • Permissible deviations in diameter and wall thickness according to GOST 8732-78                   •The pipes of other length are manufactured by agreement. COLD-WORKED PIPES Assortment of group "A". Steel grades 10, 20, 10G2, 15HM. External diameter, mm Wall thickness, mm Length of pipes, m 19 1,5, 2,5 Random length from 1,5 to 9,0 a specified length from 5,0 to 9,0 multiple length within random length 20 2,0 2,5 25 2,0, 3,0 38 2,0, 3,5 48 4,0-5,0 Assortment of group "A". Steel grade 15H5M. External diameter, mm Wall thickness, mm Length of pipes, m 20 2,0, 2,5 Random length from 1,5 to 9,0. a specified length from 5,0 to 9,0 multiple length within random length 25 2,0, 3,0 38 2,0, 3,5          Assortment of group "B" according to GOST 8733-74/8734-75.      The permissible deviations in external diameter and pipe wall thickness of "B" group should correspond to GOST 8732-78, 8734-75.