EN 10216-2 15NiCuMoNb5-6-4 WB36 Seamless Alloy Steel Tube
We are a professional manufacturer of EN 10216-2 15NiCuMoNb5-6-4 Seamless Steel Tubes For Pressure Purposes in China.
The DIN EN 10216-2 standard specifies the requirements for seamless non-alloy and alloy steel tubes for specified elevated temperature conditions. Primarily used in the construction of pressure equipment such as boilers, heat exchangers, and pipelines.
EN 10216-2 falls under the broader EN 10216 series, which covers seamless steel tubes intended for use in pressurized systems. The “-2” part of the standard refers to a specific section for carbon and carbon-manganese steel tubes, designed for use in high-temperature conditions
15NiCuMoNb5-6-4 steel grade is one of grade in En10028-2, which is non alloy and alloy steels with specified elevated temperature properties,commonly known as WB36 steel tubes, designed for high-pressure and high-temperature service.WB36 is a nickel-copper-molybdenum-niobium alloy steel, offering excellent strength, toughness, and resistance to hydrogen attack and stress corrosion cracking.
EN 1.6368 steel is an alloy steel formulated for primary forming into wrought products. 1.6368 is the EN numeric designation for this material. 15NiCuMoNb5-6-4 is the EN chemical designation.
It has a moderately high density among EN wrought alloy steels. In addition, it has a moderately low thermal conductivity and a moderately high base cost.
| Grade : | 15NiCuMoNb5-6-4 | ||
| Number: | 1.6368 | ||
| Classification: | Alloy special steel | ||
| Standard: |
|
| C | Si | Mn | Ni | P | S | Cr | Mo | N | Nb | Al | Cu |
| max 0.17 | 0.25 – 0.5 | 0.8 – 1.2 | 1 – 1.3 | max 0.025 | max 0.01 | max 0.3 | 0.25 – 0.5 | max 0.02 | 0.015 – 0.045 | max 0.015 | 0.5 – 0.8 |
Mechanical properties of steel 15NiCuMoNb5-6-4 (1.6368)
| Nominal thickness (mm): | to 60 | 60 – 100 | 100 – 150 | 150 – 200 |
| Rm – Tensile strength (MPa) | 610-780 | 600-760 | 590-740 | 580-740 |
| Nominal thickness (mm): | to 40 | 40 – 60 | 60 – 100 | 100 – 150 | 150 – 200 |
| ReH – Minimum yield strength (MPa) | 460 | 440 | 430 | 420 | 410 |
| KV – Impact energy (J) transverse, | -20° 27 |
0° 34 |
+20° 27-40 |
| A – Min. elongation at fracture (%) | 16-19 |
Heat Treatment Requirements
EN 10216-2 WB36 tubes are supplied in normalized and tempered (NT) condition:
-
Normalizing heat treatment
-
Tempering to achieve required strength and toughness
This heat treatment ensures safe performance in pressure and high-temperature applications.
EN 10216-2 15NiCuMoNb5-6-4 Seamless Alloy Steel Tube
Manufacturing & Standards
-
EN 10216-2 – Seamless steel tubes for pressure purposes
-
Hot-finished or cold-finished manufacturing
-
Dimensional tolerances per EN 10216-2
-
Hydrostatic or nondestructive testing (UT / Eddy current)
