Excerpt:
A seamless non-alloy pressure tube option for boiler connections, heat-transfer equipment and engineered process pipework. P265GH selection starts with the operating temperature, wall calculation and inspection category; the material grade alone is not a pressure rating.
QIDA METAL · MATERIALS & EXPORT SUPPLY
P265GH Seamless Pressure Tube | EN 10216-2
A seamless non-alloy pressure tube option for boiler connections, heat-transfer equipment and engineered process pipework. P265GH selection starts with the operating temperature, wall calculation and inspection category; the material grade alone is not a pressure rating.
| Ordering item | Specification |
|---|---|
| Material / standard | EN 10216-2 / 1.0425 |
| Product family | Seamless Pipe |
| Supply basis | Enquiry-based grade, dimensions, processing and quantity; availability, MOQ and delivery confirmed in the quotation. |
| Inspection documents | Request heat/batch records and EN 10204 3.1 or other documents where required; actual document scope must be confirmed. |
01 / Selection Advantages
- A defined pressure-tube grade keeps chemical analysis, heat treatment and acceptance in the same purchasing specification.
- Seamless construction can suit drawings that exclude a longitudinal weld. State that requirement explicitly.
- Cut lengths, bevel preparation and traceability can be reviewed together to reduce site preparation and mixed-batch risk.
02 / Specifications & Size Schedule
Use the following options to prepare a complete enquiry. The lists do not imply that every dimension combination is stocked or interchangeable with another standard. State the required tolerances and quantity for each line.
| Parameter | Enquiry requirement |
|---|---|
| Manufacture | Seamless, hot finished; normalized / normalizing formed condition as specified |
| Outside diameter / mm | 21.3, 26.9, 33.7, 42.4, 48.3, 60.3, 76.1, 88.9, 114.3, 139.7, 168.3, 219.1, 273, 323.9 |
| Wall / mm | 2.6, 3.2, 4, 5, 6.3, 8, 10, 12.5, 16, 20, 25, 30; OD/wall combinations by enquiry |
| Length / m | 6, 12 or ordered fixed/random lengths |
| Ends | Plain or bevelled; specify bevel geometry and end caps |
| Inspection category | TC1 or TC2 to be agreed with the selected standard edition |
| OD × wall / mm | Theoretical kg/m | Use when preparing an RFQ |
|---|---|---|
| 33.7 × 3.2 | 2.41 | Bare carbon steel; nominal dimensions |
| 48.3 × 4 | 4.37 | Bare carbon steel; nominal dimensions |
| 60.3 × 5 | 6.82 | Bare carbon steel; nominal dimensions |
| 88.9 × 6.3 | 12.83 | Bare carbon steel; nominal dimensions |
| 114.3 × 8 | 20.97 | Bare carbon steel; nominal dimensions |
| 168.3 × 10 | 39.04 | Bare carbon steel; nominal dimensions |
| 219.1 × 12.5 | 63.68 | Bare carbon steel; nominal dimensions |
| 273 × 16 | 101.40 | Bare carbon steel; nominal dimensions |
| 323.9 × 20 | 149.88 | Bare carbon steel; nominal dimensions |
03 / Chemical Composition
Composition is expressed in weight percent. Maximum and minimum limits refer to the listed grade/product reference; final acceptance follows the agreed standard edition and heat analysis.
| Element | Grade reference / wt.% |
|---|---|
| C | ≤0.20 |
| Si | ≤0.40 |
| Mn | ≤1.40 |
| P | ≤0.025 |
| S | ≤0.010 |
| Cr | ≤0.30 |
| Ni | ≤0.30 |
| Mo | ≤0.08 |
| Cu | ≤0.30 |
| Nb | ≤0.020 |
| V | ≤0.020 |
| Ti | ≤0.040 |
| Al total | ≥0.020 |
| Fe | Balance |
04 / Mechanical Properties & Technical Notes
| Wall group / mm | Min yield / MPa | Tensile / MPa | Min elongation L / T |
|---|---|---|---|
| t ≤16 | 265 | 410–570 | 23% / 21% |
| 16 < t ≤40 | 255 | 410–570 | 23% / 21% |
| 40 < t ≤60 | 245 | 410–570 | 23% / 21% |
Room-temperature values for the indicated wall groups. Elevated-temperature proof stress, impact sampling and the applicable edition must be checked for the actual pressure design. Do not substitute EN 10028 plate data or fittings data for the tube acceptance specification.
05 / Processing & Inspection
| Control point | What to agree or inspect |
|---|---|
| Traceability | Match grade, heat number, pipe marking and inspection certificate before dispatch. |
| Dimensions | Check OD, wall, ovality, straightness and length against the agreed standard. |
| Integrity | Specify hydrostatic or permitted electromagnetic leak-tightness testing; agree NDT category and coverage. |
| Fabrication | Confirm cutting, bevels, heat treatment and any additional testing before work begins. |
Include additional tests, third-party inspection, marking transfer and processing requirements before order confirmation. Qida can coordinate the agreed inspection scope and supporting records; an online product guide is not a delivered-batch test certificate.
06 / Export Packaging & Transport
| Packing item | Practical requirement |
|---|---|
| Internal protection | Dry bore; cap both ends to limit dirt and handling damage. |
| External protection | Temporary oil/varnish only where compatible with subsequent welding and cleaning. |
| Bundles | Steel straps, separators and visible size/heat labels; agree bundle weight and lifting points. |
| Loading | Support pipes on suitable dunnage, block longitudinal movement and secure against rolling. |
Agree destination port, Incoterms rule and named place, package mass, unloading equipment and required shipping documents. Container capacity depends on payload limits, route and load distribution. For regulated solid-wood packaging, confirm the applicable ISPM 15 treatment and marking requirements.
07 / Qida Procurement Support
| Order stage | Our coordination | Buyer benefit |
|---|---|---|
| Specification review | Review material, dimensions, units, drawings and destination requirements. | A clear line-by-line enquiry helps reduce omissions and incompatible substitutions. |
| Processing plan | Confirm cutting, finishing, inspection and identification items in writing. | The buyer can assess scope and acceptance before production or sourcing proceeds. |
| Packing & dispatch | Coordinate labels, packing list, suitable protection and shipping-document requirements. | Piece count and heat/lot correspondence can be checked at agreed milestones. |
| After-sales follow-up | Review order references, arrival photos and inspection records for reported issues. | A documented issue description supports a specific response and follow-up. |
08 / Request a Detailed Quotation
Send the standard and edition, grade, size schedule, quantity per size, material condition, finish, processing drawings, tests/documents, packing requirements and destination port. Include maximum piece or package weight and any project approval requirements. Pricing, minimum quantity and lead time will be confirmed against the actual requirement.
Shandong Qida Metal Technology Co., Ltd. · Liaocheng, Shandong, China
qidamt@163.com · +86 139 6951 8618
Technical References
The primary references below support material selection and enquiry preparation. They do not certify a delivery batch or imply an affiliation with their publishers. Product form, condition, standard edition and supplementary requirements must be agreed in the purchase specification.
