EN10216-2 Seamless steel tubes for pressure purposes Technical delivery conditions Non-alloy steel tubes with specified elevated temperature properties
Applications: for manufacturing pipelines of boilers, vessel equipment
Size range:
O.D.:10.2-711mm W.T.:1.6-100mm L: according to customer requirement
Steel Grade:
195GH , P235GH, P265GH,16Mo3,10CrMo9-10,11CrMo9-10,25CrMo4
Manufacture:
The tubes are manufactured by a seamless process either by hot finished or cold finished
Option 1: The tubes are cold finished before heat treatment.
Chemical composition
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | Al |
| Steel Name | Steel
Number | max | max | max | max | max | max | max | |
| 195GH | 1.0348 | 0.13 | 0.35 | 0.70 | 0.025 | 0.020 | 0.30 | 0.08 | ≥0.020 |
| P235GH | 1.0345 | 0.16 | 0.35 | 1.20 | 0.025 | 0.020 | 0.30 | 0.08 | ≥0.020 |
| P265GH | 1.0425 | 0.20 | 0.40 | 1.40 | 0.025 | 0.020 | 0.30 | 0.08 | ≥0.020 |
| 20MnNb6 | 1.0471 | 0.22 | 0.15-0.35 | 1.0-1.50 | 0.025 | 0.020 | - | - | ≤0.060 |
| 16Mo3 | 1.5415 | 0.12-0.20 | 0.35 | 0.40-0.90 | 0.025 | 0.020 | 0.30 | 0.25-0.35 | ≤0.040 |
| 10CrMo9-10 | 1.7380 | 0.08-0.14 | 0.50 | 0.30-0.70 | 0.025 | 0.020 | 2.0-2.50 | 0.90-1.10 | ≤0.040 |
| 11CrMo9-10 | 1.7383 | 0.08-0.15 | 0.50 | 0.40-0.80 | 0.025 | 0.020 | 2.0-2.50 | 0.90-1.10 | ≤0.040 |
| 25CrMo4 | 1.7218 | 0.22-0.29 | 0.40 | 0.60-0.90 | 0.025 | 0.020 | 0.90-1.20 | 0.15-0.30 | ≤0.040 |
Mechanical properties
| Steel Grade | Tensile properties | Tensil | Elongation |
| Steel Name | Steel
Number | Upper yield strength | Strength | A min.% |
| ReH min for Wall Thickness | Rm | | |
| T mm | | | |
| T≤16 | 16＜T≤40 | 40＜T≤60 | | | |
| Mpa | Mpa | Mpa | Mpa | l | t |
| 195GH | 1.0348 | 195 | ~ | ~ | 320-440 | 27 | 25 |
| P235GH | 1.0345 | 235 | 225 | 215 | 360-500 | 25 | 23 |
| P265GH | 1.0425 | 265 | 225 | 245 | 410-570 | 23 | 21 |
| 20MnNb6 | 1.0471 | 355 | 345 | 335 | 500-650 | 22 | 20 |
| 16Mo3 | 1.5415 | 280 | 270 | 260 | 450-600 | 22 | 20 |
| 10CrMo9-10 | 1.7380 | 280 | 280 | 270 | 480-630 | 22 | 20 |
| 11CrMo9-10 | 1.7383 | 355 | 355 | 355 | 540-680 | 20 | 18 |
| 25CrMo4 | 1.7218 | 345 | 345 | 345 | 540-690 | 18 | 15 |
EN10216 Seamless steel tubes for pressure purposes- Technical delivery condition:
EN10216-1 Non-alloy steel tubes with specified room temperature properties
EN10216-2 Non-alloy steel tubes with specified elevated temperature properties
EN10216-3 Alloy fine grain steel tubes
EN10216-4 Non-alloy and alloy steel tubes with specified low temperature properties
EN10216-5 Stainless steel tubes
Normative references:
EN10002-1, Metallic materials - Tensile Testing - Part 1: Method of test at ambient temperature
EN10002-5, Metallic materials - Tensile Testing - Part 5: Method of testing at elevated temperature.
EN10020, Definition and classification of grades of steel
EN10021, General technical delivery requirements for steel and iron products
EN10027-1, Designation systems for steel - Part 1 : Steel names, principal symbols
EN10027-2, Designation systems for steel - Part 2: Numerical systems
EN10045-1, Metallic materials - Charpy impact test - Part 1: Test method
EN10052, Vocabulary of heat treatment terms for ferrous products.
EN10204, Metallic products - Types of inspection documents
EN10233, Metallic materials - Tube - Flattening Test
ENV10200, Seamless and welded steel tubes - Dimensions and masses per unit length
EN10233, Metallic materials - Tubes - Flattening test
EN10234, Metallic materials - Tubes - Drift expanding test
EN10236, Metallic materials - Tubes - Ring expanding test
EN10237, Metallic materials - Tubes - Ring tensile test
EN10246-1, Non-destructive testing of steel tubes - Part 1: Automatic electromagnetic testing of seamless and welded ( except submerged arc-welded) ferromagnetic steel tubes for verification of hydraulic leak-tightness
EN10246-5, Non-destructive testing of steel tubes - Part 5: Automatic full peripheral magnetics transducer/flux leakage testing of seamless and welded ( except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal imperfections
EN10246-6, Non-destructive testing of steel tubes - Part 6: Automatic full peripheral ultrasonic seamless for the detection of transverse imperfections
EN10246-7, Non-destructive testing of steel tubes - Part 7: Automatic full peripheral ultrasonic seamless and welded ( except submerged arc welded) steel tubes for the detection of longitudinal imperfections
EN10246-14, Non-destructive testing of steel tubes - Part 14: Automatic full peripheral altrasonic seamless and welded ( except submerged arc welded) steel tubes for the detection of laminar imperfections
EN ISO377, Steel and Steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997)
EN 10168, Iron and steel products - Inspection documents - List information and description
ENV10220, Seamless and welded steel tubes - Dimensions and masses per unit length
EN10266, Steel Tubes, fittings and structural hollow sections - Definitions and symbols for use in product standards
EN10266-1, Steel - Conversion of elongation values - Part 1: Carbon and low-alloy steels (ISO 2566-1:1984)
EN ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition
CR 10266, Designation systems for steel - Additional symbols
CR 10261, ECISS Information Circular IC 11 - Iron and steel - Review of available methods of chemical analysis.
Product Tags:
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EN10216-2 Steam Boiler Tubes for Pressure Vessels , Heat Exchanger Tubes Images
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