Questions & Answers
Stainless steel grades for tees
Stainless steel tees are made from the following steel grades: 20Х23Н18, 10Х23Н18, 06ХН28МДТ, 03Х17Н14М3, 10Х17Н13М2Т, 08Х18Н10Т, 12Х18Н10Т, 08Х18Н10.
Stainless steel tee standards
International standards:
ISO 5251 - Pipeline connecting components;
EN 10253-4 - Stainless steel welded fittings.
GOST standards:
GOST 6032-2017 - Corrosion testing;
GOST 14192-96 - Packaging and marking;
GOST 7566-2018 - Rules for the acceptance of metal products;
GOST 5632-2014 - Stainless steel grades;
GOST 17378-2001 - Steel transitions;
GOST 17375-2001 - Elbows;
GOST 17380-2001 - Technical conditions for pipeline components;
GOST 17376-2001 - steel reducing and equal tees.
Stainless steel equal bore tee weight table
| DN | Outer diameter, mm | Weight of 1 piece, kg |
| DN15 | 21.3 | 0.1 |
| DN20 | 26.9 | 0.16 |
| DN25 | 33.7 | 0.24 |
| DN32 | 42.4 | 0.40 |
| DN40 | 48.3 | 0.58 |
| DN50 | 60.3 | 0.85 |
| DN65 | 76.1 | 1.45 |
| DN80 | 88.9 | 2.1 |
| DN100 | 114.3 | 3.6 |
| DN125 | 139.7 | 5.8 |
| DN150 | 168.3 | 8.7 |
| DN200 | 219.1 | 15.5 |
| DN250 | 273 | 26 |
| DN300 | 323.9 | 40 |