Questions & Answers
Steel grades for steel bends
Structural alloy steels: 30KhGSA, 40KhN, 35KhM, 40Kh, 30Kh, 20Kh.
Low-alloy steels: 17G1S-U, 09G2S, 17G1S, 16GS, 15GS, 10G2.
Carbon steels: 25, 20, 10, St3sp, St3ps.
Heat-resistant steels: 10Kh9MFB, 20KhM, 15KhM, 12KhM, 15Kh5M, 12Kh1MF.
Steel bend standards
GOST standards:
GOST 30753-2001;
GOST 17375-2001;
GOST 22793-83;
GOST 17380-2001.
International standards:
ISO 5251;
ISO 3419.
European standards:
DIN 2615;
DIN 2606;
DIN 2605;
EN 10253-2;
EN 10253.
Table of weights of steel 90° elbows
| Dу (DN) | Outer diameter, mm | Weight, kg |
| 15 | 21,3 | 0,15 |
| 20 | 26,8 | 0,25 |
| 25 | 33,5 | 0,4 |
| 32 | 42,3 | 0,7 |
| 40 | 48,3 | 0,95 |
| 50 | 60,3 | 1,4 |
| 65 | 76,1 | 2,1 |
| 80 | 88,9 | 2,9 |
| 100 | 114,3 | 4,5 |
| 125 | 139,7 | 6,5 |
| 150 | 168,3 | 9,5 |
| 200 | 219,1 | 16,5 |
| 250 | 273 | 25 |
| 300 | 323,9 | 35 |
| 350 | 355,6 | 48 |
| 400 | 406,4 | 65 |
| 450 | 457 | 85 |
| 500 | 508 | 110 |
| 600 | 610 | 160 |