What is API 5L Grade B pipe specification?
Nominal Pipe Size 1/2" to 48 " O.D. Wall Thickness - Schedule 10 through 160, STD, XS, XXS. Bare, Oiled, Mill Varnish, Galv, FBE, FBE Dual, 3LPE, 3LPP, Coal Tar, Concrete Coating and Tape Wrap. End Finishes:Beveled, Square Cut, Threaded & Coupled.
API 5L Class B Pipe Specification
| Standard | API 5L standard Grade B steel grade seamless steel pipe/tube (Specification for Line Pipe - ANSI/API specification 5L - 44th Edition, October 1, 2007) |
|---|---|
| Sizes | Nominal Pipe Size 1/2" to 48 " O.D. Wall Thickness - Schedule 10 through 160, STD, XS, XXS. |
| Product Specification Level (PSL) | API 5L GrB PSL 2 API 5L GrB PSL 1 |
| Thickness | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| Applications | Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes |
| Pipe End | Plain, Bevel, Screwed, Threaded |
| API 5L GrB Pipes Type | Seamless / ERW / Welded / Fabricated / CDW |
| API Grade B Line Pipe Length | Single Random, Double Random & Required Length, Custom Size - 12 Meter lengths |
Chemical Composition %
|
PSL1 |
PSL2 |
|||||||
|---|---|---|---|---|---|---|---|---|
| Grade | C (Max.) | Mn(Max.) | P(Max.) | S(Max.) | C (Max.) | Mn(Max.) | P(Max.) | S(Max.) |
| A | 0.22 | 0.90 | 0.03 | 0.03 | 0.22 | 1.20 | 0.025 | 0.015 |
| B | 0.26 | 1.20 | 0.03 | 0.03 | 0.22 | 1.30 | 0.025 | 0.015 |






