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
BSL-1
BSL-2
BSL-3
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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