Questions & Answers
Stainless steel thread grades
Stainless steel threads are made from the following steel grades: 10Х23Н18, 06ХН28МДТ, 03Х17Н14М3, 10Х17Н13М2Т, 08Х18Н10Т, 12Х18Н10Т, 08Х18Н10.
Stainless Steel Thread Standards
International Standards:
EN 10226 - Sealed Pipe Threads;
ISO 965 - Tolerances for Metric Threads;
ISO 261 - Metric Threads;
ISO 228-1 - Cylindrical Pipe Threads;
ISO 7-1 - Tapered Pipe Threads.
GOST Standards:
GOST 5632-2014 - Stainless Steel Grades;
GOST 8969-75 - Nipples;
GOST 3262-75 - Water and Gas Pipes;
GOST 16093-2004 - Metric Thread Tolerances;
GOST 24705-2004 - Metric Thread Dimensions;
GOST 9150-2002 - Metric Threads;
GOST 6111-52 - Inch Tapered Thread;
GOST 6211-81 - Tapered Pipe Thread;
GOST 6357-81 - Cylindrical Pipe Thread.
Stainless Steel Thread Weight Chart
| Thread size | Length, mm | Weight of 1 piece, kg |
| 1/4" | 40 | 0.03 |
| 3/8" | 40 | 0.05 |
| 1/2" | 50 | 0.08 |
| 3/4" | 55 | 0.12 |
| 1" | 60 | 0.18 |
| 1 1/4" | 70 | 0.3 |
| 1 1/2" | 80 | 0.42 |
| 2" | 90 | 0.65 |
| 2 1/2" | 100 | 1.1 |
| 3" | 120 | 1.75 |
| 4" | 140 | 2.9 |