Grade B ERW and seamless pipe for specified wholesale orders
ASTM A53 Grade B pipe is available as Type E ERW or Type S seamless, with black or specified galvanized finishes. Choose full or cut lengths and the end preparation required for the pipework or fabrication schedule.
Our main Grade B range includes Type E ERW and Type S seamless pipe. Each route is supplied to its specified size, wall, finish and prepared ends.
| Order choice | Supply options | Detail to include |
|---|---|---|
| Manufacturing type | Grade B Type E ERW or Type S seamless | The type named on the pipe requisition |
| Dimensions | Selected NPS 1/2–8, Schedule 40 or 80 below | NPS and schedule, or specified OD and wall basis |
| Surface | Black or specified galvanized finish | Required finish and any additional coating requirement |
| Length | 6 m, 12 m or specified cut lengths | Actual length, unit and number of pieces |
| Ends | Plain, beveled, threaded or grooved | Connection detail and prepared-end quantity |
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Other sizes and grades are reviewed separately. A53/A53M-24 also includes furnace-butt-welded Type F in Grades A and B; the main supply shown here is Type E and Type S. Your order retains its specified standard edition.
Select the NPS first, then the wall schedule. The outside diameter stays the same between Schedule 40 and 80 at the same NPS; the heavier wall reduces the bore. These selected nominal dimensions let you compare the requested pipe lines before pricing.
Find a nominal pipe size or outside diameter.
| NPS (in.) | Nominal OD (in.) | Nominal OD (mm) | Sch 40 nominal wall (mm) | Sch 80 nominal wall (mm) |
|---|---|---|---|---|
| 1/2 | 0.840 | 21.3 | 2.77 | 3.73 |
| 1 | 1.315 | 33.4 | 3.38 | 4.55 |
| 1-1/2 | 1.900 | 48.3 | 3.68 | 5.08 |
| 2 | 2.375 | 60.3 | 3.91 | 5.54 |
| 3 | 3.500 | 88.9 | 5.49 | 7.62 |
| 4 | 4.500 | 114.3 | 6.02 | 8.56 |
| 6 | 6.625 | 168.3 | 7.11 | 10.97 |
| 8 | 8.625 | 219.1 | 8.18 | 12.70 |
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NPS is a size designation, rather than a measured diameter. Nominal wall differs from the actual wall accepted under the ordered specification. Inch-pound and SI requirements use their own specified values. The purchase line identifies the applicable unit system and wall acceptance basis.
Grade B is available in Type E ERW and Type S seamless construction. The manufacturing type remains part of the material requirement when dimensions are the same.
A53 identifies Grade A as the preferred choice for close coiling or cold bending, while allowing cold bending of Grade B. Send the forming requirement with any Grade A inquiry so we can review that material request separately. Type F has a further restriction: it is not intended for flanging.
Black A53 pipe can have the specified bare, oiled or protective finish. Preparation for later welding, cleaning or painting is included in the finish scope.
Galvanized supply combines the selected pipe type and dimensions with the specified zinc coating and coating records.
Black and galvanized pipe are grouped separately for receiving. Prepared threads, grooves or bevels are identified on the corresponding bundles.
We cut to the stated finished length and piece count, using the specified unit and acceptance basis. Cutting allowance, offcuts and cut-piece identification are priced with the processing work.
Plain ends, weld bevels and threads follow the specified joint detail. One-end and both-end preparation are separate items where the purchase includes both.
Grooved ends are prepared for the named coupling system, with the pipe OD, wall and groove geometry reviewed together.
An A53 requisition selects its type, grade and dimensions for the specified mechanical or pressure piping duty. Steam, water, gas and air lines follow their piping design and service requirements. The design supplies the service conditions used with that material requisition.
A106 covers seamless carbon steel pipe for high-temperature service. A requisition naming A106 remains an A106 material request, even where its Grade B size matches an A53 line. Any proposed material carrying both specifications needs actual records covering each named requirement.
The separately specified option is covered by our ASTM A106 seamless pipe range.
API 5L line pipe is quoted by pipeline grade, PSL and project requirements. The linked line-pipe range covers those selections separately from A53 supply.
Material reports identify the specification, grade, manufacturing type and supplied heat or lot. Cut and processed pieces retain the agreed link to those chemical and mechanical records.
Inspection covers the specified diameter, wall and finished length, plus any prepared bevel, thread or groove. Required dimensional reports record the results for the ordered pipe.
Required factory test records follow the pipe specification. They document pipe acceptance; operating pressure and temperature follow the piping-system design.
Third-party inspection, witness points and document formats are agreed before production so the required checks take place at the appropriate stage.
Pipe can be priced by weight, length or piece. A weight-based offer retains the lengths and piece quantities, with cutting, end work and finish priced for the same supply.
Bundles are grouped by manufacturing type, NPS, schedule and finish. Prepared ends receive the specified protection; cut pieces have their own counts on the packing list.
Packing and dispatch follow the selected size groups. Staged deliveries keep each group identifiable on its own packing list and material records.
Yes, it can be reviewed against the edition named in your project specification. Include that designation with the inquiry; we check the offered material and record scope against it before acceptance. A current-edition reference on this page does not replace the edition on your purchase order.
Yes. Customer item numbers can be printed alongside the pipe and bundle identification. Your stores team can receive by its own code while retaining the link to the material records.
Include the sample quantity, dimensions and required material identity on the order. Where a traceable test piece or separate examination is required, identify its preparation and record scope before the pipe is cut. Sample handling and any testing work then have a defined line in the quotation.
Keep the length stated on the purchase list. An exact 20 ft length is 6.096 m, so a 6 m cut is shorter. The quote identifies the finished length and its acceptance basis.
No. The test confirms the applicable pipe-test requirement. The piping design sets the operating limit using the material, wall, temperature and other service conditions.
Attach your pipe schedule with its A53 edition, type, grade, NPS, wall schedule and quantities. Add the finish, actual lengths, prepared ends, required records and destination. If the list only says A53 Grade B, send it as it stands and we will identify the missing selections. You receive itemized pipe and processing prices with their quantity basis, document scope, packing and shipment terms.