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EN 10217-4 Electric Welded Non-Alloy Steel Tube (Specified Low-Temperature Properties)
Material
EN 10217-4 covers electric welded, circular tubes for pressure purposes, made from non-alloy quality steels with specified low-temperature properties (two test categories).
Typical grades include P215NL (1.0451) and P265NL (1.0453).
Steels are required to be fully killed.
Specifications
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Manufacturing process: Electric welded (ERW / EW) pressure tube per EN 10217-4 scope.
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Steel grades (common): P215NL, P265NL.
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Test category: TC 1 or TC 2 (defines inspection/testing level).
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Supply options (typical by order): OD & WT per request; random/fixed lengths; plain ends / bevel ends; black / oiled / coated surfaces; marking & packing as agreed.
Main Features
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Designed for low-temperature pressure service: mandatory Charpy impact requirements (e.g., at -40°C for EN 10217-4 testing).
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Strict weld quality rules: the weld area must be free from cracks/lack of fusion; weld seam repairs are not permitted.
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Leak-tightness verification: hydrostatic test or electromagnetic test is required for leak-tightness.
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NDT requirements: TC1 requires full-length weld seam NDT; TC2 requires NDT of weld seam and tube body (with additional NDT options).
Our Advantages
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“Will it meet low-temperature toughness requirements and avoid brittle fracture risk?”
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EN 10217-4 specifies impact energy requirements (KV) and defines the impact test method and acceptance rules, including how averages/individual values are evaluated.
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We supply tubes with matched grade selection (P215NL / P265NL) and provide impact results at the required temperatures in the inspection documentation.
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“How do you guarantee weld integrity and leak-tightness?”
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EN 10217-4 requires leak-tightness testing and defines NDT scope by test category; it also forbids weld seam repairs, reducing hidden defect risk.
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We can offer TC2 with enhanced NDT coverage when your project is sensitive to defects (cryogenic or low-temp start-up/shutdown conditions).
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“Can you support traceability and third-party acceptance?”
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EN 10217-4 references inspection documents (EN 10204) and includes ordering examples using inspection certificates; it also notes alignment with EU pressure equipment compliance context.
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We provide full traceability: heat number, tube marking, MTC/inspection certificate per order requirements.
Chemical Composition
| Grade |
Standard Basis |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
Nb |
Ti |
Al |
N |
| P215NL (1.0451) |
EN 10217-4 |
≤0.15 |
≤0.35 |
0.40–1.20 |
≤0.025 |
≤0.020 |
≤0.30 |
≤0.30 |
≤0.30 |
≤0.08 |
≤0.02 |
≤0.010 |
≤0.03 |
≥0.020 |
— |
| P265NL (1.0453) |
EN 10217-4 |
≤0.20 |
≤0.40 |
0.60–1.40 |
≤0.025 |
≤0.020 |
≤0.30 |
≤0.30 |
≤0.30 |
≤0.08 |
≤0.02 |
≤0.010 |
≤0.03 |
≥0.020 |
— |
| P275NL1 (1.0488) |
EN 10028-3 / tube-related use |
≤0.16 |
≤0.40 |
0.80–1.50 |
≤0.025 |
≤0.015 |
≤0.30 |
≤0.50 |
≤0.30 |
≤0.08 |
≤0.05 |
≤0.05 |
≤0.03 |
≤0.02 |
≤0.012 |
| P355NL1 (1.0566) |
EN 10028-3 / tube-related use |
≤0.18 |
≤0.50 |
1.10–1.70 |
≤0.025 |
≤0.015 |
≤0.30 |
≤0.50 |
≤0.30 |
≤0.08 |
≤0.10 |
≤0.05 |
≤0.03 |
≤0.02 |
≤0.012 |
| P460NL1 (1.8915) |
EN 10028-3 / tube-related use |
≤0.20 |
≤0.60 |
1.10–1.70 |
≤0.025 |
≤0.015 |
≤0.30 |
≤0.80 |
≤0.70 |
≤0.10 |
≤0.20 |
≤0.05 |
≤0.03 |
≤0.02 |
≤0.025 |
Mechanical Properties
| Grade |
Min Yield Strength (MPa) |
Tensile Strength (MPa) |
Min Elongation (%) |
Charpy Impact (J) @ -40°C |
| P215NL |
≥215 |
360–480 |
≥25 (long.) |
≥40 (long., average) |
| P265NL |
≥265 |
410–570 |
≥24 (long.) |
≥27 (trans., average) / ≥40 (long., average) |
| P275NL1 |
≥275 |
390–510 |
≥24 |
≥27 (trans.) |
| P355NL1 |
≥355 |
490–630 |
≥22 |
≥27 (trans.) |
| P460NL1 |
≥460 |
560–730 |
≥17 |
≥27 (trans.) |
Standards (ASTM / EN / GOST / JIS / GB) — Short Reference
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EN: EN 10217-4 (electric welded non-alloy steel tubes with specified low-temperature properties).
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ASTM: ASTM A333/A333M (seamless and welded steel pipe for low-temperature service).
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GOST: GOST 8732 (seamless hot-deformed steel pipes; used widely as a CIS reference standard—final selection depends on design temperature and toughness requirements).
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JIS: JIS G3454 (carbon steel pipes for pressure service).
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GB: GB/T 18984 (seamless steel tubes for low-temperature-service piping; often used as a China-market low-temperature piping reference).
Application Areas
Typical industries: oil & gas, petrochemical, chemical plants, power & utilities, district energy, industrial refrigeration, low-temperature pressure piping and equipment.
Where used in these industries (examples):
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Low-temperature pipelines: gas transmission sections, low-temp utility headers, cold-region installations
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Pressure equipment: vessel nozzles/spools, skid piping, separators and auxiliary lines
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Heat exchange & energy systems: low-temp heat exchangers, cooling loops, refrigeration piping
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Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
