Specifications
Surface Treatments
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
EN 10269 Bolting Specification
Alloy Steel & Stainless Steel Bolting for High Temperature or High Pressure Service
Scope
EN 10269 Specification
is a European Standard that specifies requirements
for semi-finished products, bars and rods for fasteners with properties
specified at elevated and/or low
temperatures made of non-alloy and alloy (including stainless) steels and
nickel alloys.
The requirements of this standard may be applied also to the finished
fasteners.
The general technical delivery conditions in EN 10021 also apply to products
supplied in accordance with
this European Standard.
NOTE : Once this European
Standard is published in the EU
Official Journal (OJEU) under Directive 97/23/EC, presumption of conformity
to the Essential Safety
Requirements (ESRs) of Directive 97/23/EC is limited to technical data of
materials in this European
Standard and does not presume adequacy of the material to a specific item of
equipment. Consequently, the
assessment of the technical data stated in this material standard against
the design requirements of this
specific item of equipment to verify that the ESRs of Directive 97/23/EC are
satisfied, needs to be done.
EN 10269 Material
| Name | UNS Number |
|---|---|
| Steels for quenching and tempering | |
| 20MnB4 | 1.5525 |
| 23MnB4 | 1.5535 |
| 23MnB3 | 1.5507 |
| C35E | 1.1181 |
| C45E | 1.1191 |
| 35B2 | 1.5511 |
| 20Mn5 | 1.1133 |
| 25CrMo4 | 1.7218 |
| 42CrMo4 | 1.7225 |
| 42CrMo5-6 | 1.7233 |
| 40CrMoV4-6 | 1.7711 |
| 27NiCrMoV15-6 | 1.6957 |
| 26NiCrMo14-6 | 1.6958 |
| 21CrMoV5-7 | 1.7709 |
| 20CrMoVTiB4-10 | 1.7729 |
| 34CrNiMo6 | 1.6582 |
| 30CrNiMo8 | 1.6580 |
| X12Ni5 | 1.5680 |
| X8Ni9 | 1.5662 |
| X15CrMo5-1 | 1.7390 |
| X22CrMoV12-1 | 1.4923 |
| X12CrNiMoV12-3 | 1.4938 |
| X19CrMoNbVN11-1 | 1.4913 |
| Austenitic steels | |
| X2CrNi18-9 | 1.4307 |
| X5CrNi18-10 | 1.4301 |
| X4CrNi18-12 | 1.4303 |
| X2CrNiN18-10 | 1.4311 |
| X6CrNi25-20 | 1.4951 |
| X2CrNiMo17-12-2 | 1.4404 |
| X5CrNiMo17-12-2 | 1.4401 |
| X2CrNiMoN17-13-3 | 1.4429 |
| X3CrNiCu18-9-4 | 1.4567 |
| X6CrNi18-10 | 1.4948 |
| X10CrNiMoMnNbVB15-10-1 | 1.4982 |
| X3CrNiMoBN17-13-3 | 1.4910 |
| X6CrNiMoB17-12-2 | 1.4919 |
| X6CrNiTiB18-10 | 1.4941 |
| X6NiCrTiMoVB25-15-2 | 1.4980 |
| X7CrNiMoBNb16-16 | 1.4986 |
| Nickel alloys | |
| NiCr20TiAl | 2.4952 |
| NiCr19Fe19Nb5Mo3 | 2.4668 |
| NiCr15Fe7TiAl | 2.4669 |
EN 10269 Classification and designation
Classification
In accordance with EN 10020 the steel grades C35E, C45E and 20Mn5 are non-alloy special steels. All other steel grades are alloy special including austenitic steels. Additionally, austenitic nickel alloys are specified.
Designation
The steel grades specified in this European Standard are
designated with steel names and steel numbers. The steel names have been allocated in
accordance with EN 10027-1. The corresponding steel numbers have been allocated in
accordance with EN 10027-2.
NOTE : Explanation on the designation
of nickel
alloys:
- Name: the preceding chemical symbols indicate the main alloy elements and the figure immediately following indicates the average content of these alloys subsequently followed by the symbol for the other added important alloy elements;
- Material number: the structure is set out according to EN 10027-2 with the number 2 for the material group number; this material group comprises chemically resisting and heat resisting or creep resisting nickel and cobalt alloys.
EN 10269 Melting process
Unless a special melting process is agreed at the time of
enquiry and order, the melting process for the starting material in accordance with
this European Standard shall be at the discretion of the manufacturer.
Steels other
than stainless steels shall be fully killed.
EN 10269 Delivery condition
General
In order to check if the steel grades listed are fulfil
the PED requirements. Delivery conditions +A, +S, +AC normally applied for further
processing (such as shearing, cold heading, etc.). Delivery conditions normally
applied without additional heat
treatment after delivery. The purchaser shall specify in his enquiry and order the
delivery condition required.
Depending on the type (e.g. billet) and the
dimensions of the product and the intended type of further processing the material,
in special cases the delivery in the untreated condition may be agreed.
When delivery in a condition not covered in for the verification of compliance with the
requirements of this European
Standard tests on simulated treated samples may be agreed at the time of enquiry and
order. In the case of billets, this simulated treatment may also include a hot forming
operation.
By agreement at the time of enquiry
and order, for the steels for quenching and tempering a stress relieving treatment
after straightening may be specified.
EN 10269 Tests
Verification tests to be carried out and extent of testing
| Test | Test statusa | Number of samples for batches of | Number of test pieces per sample | |||
|---|---|---|---|---|---|---|
| ≤ 10 t | > 10 t to ≤ 15 t | > 15 t | ||||
| Chemical analysis | cast | m | 1/cast (see 8.3.1 and 11.1) | |||
| product | Ob | (see 10.1.1) | ||||
| Hardness test on homogeneity / shearing | Oc | (see 10.1.2 and 10.2.1.3) | ||||
| Intergranular corrosion resistance | Oc | (see 11.6.5) | ||||
| Tensile test at room temperature | m | 2 | 3 | 4 | 1 | |
| Tensile test at elevated temperature | Od | 1 | ||||
| Impact test at room temperature | Me | 3 | ||||
| Impact test at low temperature | Of | 3 | ||||
| Non-destructive testing | Og | not applicable | ||||
| Verification of surface quality | o | |||||
| Other tests | Mh | |||||
|
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