API 20e Xylan Coated Stud and Nut ASTM Gr B7 B7m 2h 2hm
API 20E Bolt has, by virtue of its contents of tungsten, chromium, molybdenum, and controlled iron. API 20E standard specifies requirements for the qualification, production and documentation of Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries. The API 20E specification establishes three bolting specification levels (BSL-1, BSL-2 and BSL-3). These BSLs define ascending levels of technical, quality and qualification requirements. Increasing levels of severity reflect increased consequence of bolting failure.
Bolting Specification Level
ASTM Grades
- A193 Gr B7 & B7M
- A320 Gr L7 & L7M
- A320 Gr L43
- A194 Gr 2H & 7M
- A540 Gr B22 & B23
Types
- Hot Formed Bolts
- Hot Formed Nuts
- Stud Bolts
- Machined Bolts & Nuts
These specialized fasteners are marked with the API Monogram and meet industry-written standards and globally-accepted management system specifications.
This bolting is intended to be used in Surface & Subsea Equipment and API specifications such as:
- Wellheads
- Valves
- Blow Out Preventers
- Trees
- Risers
- Manifolds
- Other HPHT Equipment
- API 6A
- API 6D
- API 6DSS
- API 16A
- API 16C
- API 17D
- 1. Material : alloy steel
2. Grade: ASTM A194 2H , ASTM A193 B7
3. Size: M3 - M48
4. Standard: A194 ,A193
5. Certification: ISO9001, SGS, CTI .
| Product Name |
ASTM A193 gr B7 thread rod stud bolt 2H nut 1/4 3/8 5/16 7/8 1/2 3/4 |
| Material |
alloy steel |
| Surface treatment |
plain, black , zinc plated, yellow zinc plated |
| Standard |
DIN , GB, ISO, JIS, ANSI |
| Grade |
ASTM A193 B7, ASTM A194 2H |
| Thread |
Metric ,Inch |
| Used |
Construction, machinery |
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