Seamless Steel Tube EN10216-3 P355NL1 High Pressure Seamless Alloy
Steel Pipe
Test methods
1 Tensile test
1.1 Tensile test at room temperature, the test shall be carried out
at room temperature in accordance with EN 10002-1
1.2 Tensile test at elevated temperature, the test shall be carried
out in accordance with EN 10002-5 at 400 °C or 300°C
2 Flattening test shall be carried out in accordance with EN 10233.
3 Ring tensile test shall be carried out in accordance with EN
10237.
4 Drift expanding test shall be carried out in accordance with EN
10234.
5 Ring expanding test shall be carried out in accordance with EN
10236.
6 Impact test shall be carried out in accordance with EN 10045-1,
7 Leak tightness test
7.1 Hydrostatic test
7.2 Electromagnetic test
8 Dimension inspection
9 Visual examination
10 Non-destructive test
Tubes of test category 2 shall be subjected Non-Destructive Testing
for the detection of longitudinal imperfections, in accordance with
EN 10246-7, to acceptance level U2 sub-category C or EN 10246-5
acceptance level F2.
Material identification
Each tube made of steel grades P460 , P620 and P690 shall be tested
by an appropriate method to ensure that the correct grade is being
supplied.
Seamless Steel Tube Specifications
Standard : EN10216-3
Outside Diameter: 325-1067 mm
Wall Thickness: 9.53-140 mm
Length: On the request
Leak-tightness
The tubes shall pass a hydrostatic test or electromagnetic test for
leak tightness.
Non-Destructive testing
The tubes of test category 2 shall be subjected to a
Non-Destructive testing for the detection of longitudinal
imperfections.
Straightness
The deviation from straightness of any tube length L shall not
exceed 0,0015 L. Deviations from straightness over any one metre
length shall not exceed 3 mm.
Preparation of ends
Tubes shall be delivered with square cut ends. The ends shall be
free from excessive burrs.
Types of inspection documents
An inspection certificate 3.1.B, in accordance with EN 10204, shall
be issued.
Content of inspection documents
The content of the inspection document shall be in accordance with
prEN 10168.
The inspection certificate or inspection report shall contain the
following codes and information:
- commercial transactions and parties involved;
- description of products to which the inspection document applies;
- direction of the test pieces and testing temperature;
- tensile test;
- impact test;
- other tests (e.g. flattening);
- chemical composition on cast analysis (product analysis if
applicable);
- marking and identification, surface appearance, shape and
dimensional properties;
- leak-tightness test, NDT, material identification if applicable;
Chemical composition, %
| Steel grade | C max | Si max | Mn | P max | S max | Cr max | Mo max | Ni max | Al min | Cu max | N max | Nb max | Ti max | V max | Nb+Ti+V max |
| P355NL1 | 0.18 | 0.50 | 0.90-1.70 | 0.025 | 0.020 | 0.30 | 0.08 | 0.50 | 0.020 | 0.30 | 0.020 | 0.05 | 0.040 | 0.10 | 0.12 |
| P460NL1 | 0.20 | 0.60 | 1.00-1.70 | 0.025 | 0.020 | 0.30 | 0.10 | 0.80 | 0.020 | 0.70 | 0.020 | 0.05 | 0.040 | 0.20 | 0.22 |
| P620QH | 0.20 | 0.60 | 1.00-1.70 | 0.025 | 0.020 | 0.30 | 0.10 | 0.80 | 0.020 | 0.30 | 0.020 | 0.05 | 0.040 | 0.20 | 0.22 |
| P690QH | 0.20 | 0.80 | 1.20-1.70 | 0.025 | 0.015 | 1.50 | 0.70 | 2.50 | 0.020 | 0.30 | 0.015 | 0.06 | 0.05 | 0.12 | |
| P690QL1 | 0.20 | 0.80 | 1.20-1.70 | 0.025 | 0.015 | 1.50 | 0.70 | 2.50 | 0.020 | 0.30 | 0.015 | 0.06 | 0.05 | 0.12 | |
Mechanical properties at room temperature
| Steel grade | Heat treatment | Upper yield strength or proof strength, ReH or Rp0.2, min. for wall thickness T in mm | Tensile strength, Rm for wall thickness T in mm | Elongation A min |
| ≤12 | >12 to ≤20 | >20 to ≤40 | >40 to ≤50 | >50 to ≤65 | >65 to ≤80 | >80 to ≤100 | ≤20 | >20 to ≤40 | >40 to ≤65 | >65 to ≤100 | I | t |
| MPa | MPa | MPa | MPa | MPa | MPa | MPa | MPa | MPa | MPa | MPa | % | % |
| P355NL1 | +N | 355 | 355 | 345 | 335 | 325 | 315 | 305 | 490-650 | 490-630 | 490-630 | 450-590 | 22 | 20 |
| P460NL1 | +N | 460 | 450 | 440 | 4245 | 410 | 400 | 390 | 560-730 | 560-730 | 560-730 | 490-690 | 19 | 17 |
| P620QH | +QT | 620 | 620 | 580 | 540 | 500 | - | - | 740-930 | 690-860 | 630-800 | - | 16 | 14 |
| P690QH | +QT | 690 | 690 | 650 | 615 | 580 | 540 | 500 | 770-960 | 720-900 | 670-850 | 620-800 | 16 | 14 |
| P690QL1 | +QT | 690 | 690 | 650 | 615 | 580 | 540 | 500 | 770-960 | 720-900 | 670-850 | 620-800 | 16 | 14 |
Appearance
1 The tubes shall be free from external and internal surface
defects, that can be detected by visual examination.
2 The internal and external surface finish of the tubes shall be
typical of the manufacturing process and, where applicable, the
heat treatment employed. Normally the finish and surface condition
shall be such that any surface imperfections requiring dressing can
be identified.
| Place of Origin | China | Brand Name | BOYUE |
| Standard | ANSI, ISO, ASME, DIN, ASTM | Type | Seamless |
| ModelNumber | Alloy Steel Pipe | Thickness | SCH 5-SCH XXS |
| Packing | Depending on customer | Payment | 30%TT+70% Balance |
Supply Ability:40000Pieces / per Month
Packaging & Delivery
Packaging Details:Generally plywooden case or following customer's
requirement.
Port:Shanghai/Tianjin
Commerce Clause
| Minimum Order Quantity: | 1pcs |
| Price: | Depending on quantity |
| Payment Terms: | T/T or Western Union or LC |
| Supply Ability: | 40000 ton per month |
| Delivery Time: | 10-100 days depending on quantity |
| Packaging Details: | Depending on customer |
Why Choose Us
1. One-Stop Service,One Single Source.
2. No MOQ.
3. Best quality,competitive price
4. Fast Reply.
5. On-Time Delivery
6. Professional sales and technical team .
FAQ
Q1: Are you a factory or a trade company?
A1: We are a professional manufacturer for designing and producing
of Large-size products.(View Mor)
Q2: Do you make customized products or finished parts?
A2: All parts are custom made only, and in stock, we can produce
based on your drawings.
Q3: Will my drawing be e after you get it?
A3: Yes, we will not release your design to third party unless with
your permission.
Q4: What is the MOQ?
A4: Small order is acceptable, but the more, the cheaper.
Q5: How about the samples?
A5: We are happy to make prototype part or sample for clients to
ensure quality standard, but it’s charged according to your drawing
