EN 10305-1 E215 E235 E355 Seamless Precision Steel Tubes Tubing Pipe
EN 10305 standard specifies the technical delivery conditions for seamless cold drawn steel pipe of circular cross section used in hyhydraulic and pneumatic power systems.
Standard and Steel Seamless Precision Steel Tube Tubing Tubes Grade:
- EN10305-1 E215 Seamless Precision Steel Tube Tubing Tubes
- EN10305-1 E235 Seamless Precision Steel Tube Tubing Tubes
- EN10305-1 E355 Seamless Precision Steel Tube Tubing Tubes
The allowed pressure rates and temperatures are the responsibility of the customer in accordance with the state of the art and in application of the safety coefficients specified in the application regulations, codes or standards.
Tubes according to EN 10305 standard are characterised by having precisely defined tolerances on dimensions and a specified surface roughness.
EN 10305 seamless precision steel tube shall be manufactured from hot finished seamless tubes by cold drawning. Other suitable methods of cold working are permitted. The tubes shall be delivered in the delivery condition +N which means that after the final cold drawing operation the tubes are normalized in a controlled atmosphere.
EN 10305-1 Chemical composition(%)
| Steel Grade |
Steel
Number |
C(% max) |
Si(% max) |
Mn(% max) |
P(% max) |
S(% max) |
| E215 |
1.0212 |
0.10 |
0.05 |
0.70 |
0.025 |
0.015 |
| E235 |
1.0308 |
0.17 |
0.35 |
1.20 |
0.025 |
0.015 |
| E355 |
1.0580 |
0.22 |
0.55 |
1.60 |
0.025 |
0.015 |
EN 10305-1 Mechanical Properties
Yield Strength
(min Mpa) |
Tensile strength
(min Mpa) |
Elongation
(min %) |
| 215 |
290-430 |
30 |
| 235 |
340-480 |
25 |
| 355 |
490-630 |
22 |
Note:
- The yield point for the annealed (GBK)condition on delivery is at least 50% of the (ultimate) tensile strength. Depending upon the degree of deformation in the drawing operation, the yield point of tubes delivered in the cold-finished/hard (BK)and cold-finished/soft(BKW) conditions, may be increased to a level close to the tensile strength.
- In calculating the yield point, the following values are recommended : cold-finished/hard condition on delivery ≥ 80% of the tensile strength, cold-finished/soft condition on delivery ≥ 70% of the tensile strength.
EN 10305-1 Quality Grade
The tubes are supplied in the following quality grades :
A) precision steel tubes intended primarily for mechanical stressing, without any particular quality requirement and without acceptance test certificate.
B) precision steel tubes intended primarily for mechanical stressing, with special quirement and exclusively with acceptance test certificate.
C) precision steel tubes with special requirement according to section 12. Theses requirements and corresponding tests must be agreed, with the customer having to specify his requirements at the time of enquiry and on ordering.
EN 10305-1 Delivery Condition
| Term |
Symbol |
Explanation |
Cold-finished/hard
|
+C |
No heat treatment after the final cold drawing process |
Cold-finished/soft
|
+LC |
After the final heat treatment there is a suitable drawing pass. |
| Cold Drawn and Stress Relieved |
+SR |
After the final cold-forming process there is Stress relief heat treatment in a controlled atmosphere. |
| Annealed |
+A |
After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized |
+N |
After the final cold drawing process the tubes are Normalized in a controlled atmosphere. |
Former frequently used corresponding heat treatment symbols are givenin table
Standard
No |
Steel Grade |
Standard Name |
Dimension
Range |
| EN 10208 |
L210GA,L235GA,L245GA,L290GA,
L360GA,L245NB, L290NB,L360NB,
L415NB, L360QB, LI15QB,L450QB,
L485QB,L555QB |
Steel Pipes for Pipelines for
Combustible Fluids |
33.7-1626mm |
| EN 10210 |
S235JRH,S275JOH,S275J2H,S355JOH,
S355J2H,S355K2H,S275NH,S275NLH,
S355NH,S355NLH,S420NH,S420NLH,
S46INH,S460NLH |
Hot Finished Structural
Hollow Sections of Non-alloy
and Fine Grain Steels |
21.3-1219mm |
| EN 10216-1 |
P195TRI,P195TR2,P235TR1,
P235TR2, P265TR I, P265TR2 |
Seamless Steel Tubes for
Pressure Purposes-1-
Non-alloy Steel Tubes with
Specified Room Temperature
Properties |
10.2-711mm |
| EN 10216-2 |
P195GH, P235GH, P265GH,
20MnNb6,16Mo3, 8MoB5-4,
14MoV6.3, 10CrMo5.5,13CrMo4-5,
10CrMo9-10, 11CrMo9.10,
25CrMo4,20CrMoV13-5-5,
15 NiCuMoNB-6-4,X11CrMo5+1,
X11CrMo5+NTI,X11CrMo5+NT2,
X11CrMo9.1+1, X11CrMo9.1+NT,
X10CrMoVNb9-l, X20CrNiV11-1 |
Seamless Steel Tubes for
Pressure Purposes-2:
Non-alloy and Alloy Steel
Tubes with Specified Elevated
Temperature Properties |
10.2-711mm |
| EN 10216-3 |
P275NL I,P275NL2, P355N,P355NH,
P355NL1,P355NL2,P460N,P460NH,
P460NL1,P460NL2,P620Q,P620QH,P620QL,
P690Q,P690QH,P690OL1,P690QL2 |
Seamless Steel Tubes for
Pressure Purposes-3:
Alloy Fine Grant Steel Tubes |
10.2-711mm |
| EN10216-4 |
P215NL,P255QL,P265NL,
26CrMo4.2,11MnNi5-3,13MnNi6-3,
12Nil4,Xl2Ni5,X10Ni9 |
Seamless Steel Tubes far
Pressure Purposes-4:
Non-alloy aid Alloy Steel
Tubes with Specified Low
Temperature Properties |
10.2-711mm |
| EN 10224 |
L235, L275, L355 |
Non-alloy Steel Tubes and
Fittings for the Conveyance of
Water and Other Aqueous
Liquids |
26.9-2743mm |
| EN 10297-1 |
E235,E275,E315,E355,E470,
E275K2,E355K2,E420J2,E460K2,
E590K2,F730K2 C22E,C35E,C45E,C60E,
38Mn6,41Cr4,25CrMo4,30CrMo4,
34CrMo4,42CrMo4,36CrNiMo4,
30CrNiMo8,4lNiCrMo7-3-2 |
Seamless Circular Steel Tubes
for Mechanical mid General
Engineering Purposes-1:
Non-alloy and Alloy
Steel Tubes |
26.9-610mm |
| EN 10305-1 |
E215,E235,E355 |
Steel Tubes For Precision
Applications-1:
Seamless Cold Drawn Tubes |
4-260mm |
| EN 10305-4 |
E215,E235,E355 |
Steel Tubes for precision
Applications-4:
Seamless Cold Drawn Tubes
for Hydraulic mid Pneumatic
Power Systems |
4-80mm |
HEAT-TREATABLE STEELS
Seamless steel tubes acc. to DIN EN 10083-3 and DIN 17204 |
| |
|
|
| DIN EN 10083-3: |
Heat-treatable steels (Quenched & tempered steels) |
| Steel grades: |
e.g. 25CrMo4, 34CrMo4, 42CrMo4 |
| DIN 2448/17204: |
Seamless circular tubes made from heat-treatable steels |
| (DIN 2448 [replaced]): |
Plain end seamless steel tubes: Dimensions and conventional masses per unit length |
| Steel grades: |
e.g. 25 CrMo 4, 34 CrMo 4, 42 CrMo 4 |
| Fields of application: |
| General mechanical engineering and tool-building, vehicle construction, pressure vessel and pipeline construction |
| |
TUBES FOR STRUCTURAL STEEL CONSTRUCTIONS MADE FROM FINE-GRAIN STEELS
Seamless steel tubes acc. to DIN EN 10210 and DIN 17124 |
| |
|
|
| DIN EN 10210-1: |
Hot-finished structural hollow sections of non-alloy and fine-grain structural steels |
| Steel grades: |
e.g. S275NH, S355NH, S355NLH, S460NH, S460NLH |
| DIN EN 10210-2: |
Hot-finished structural hollow sections of non-alloy and fine-grain structural steels - Tolerances, dimensions and sectional properties |
| DIN 2448/17124 (replaced): |
Seamless circular tubes of fine-grain steels for engineering purposes |
| (DIN 2448 [replaced]): |
Plain end seamless steel tubes: Dimensions and conventional masses per unit length |
| Steel grades: |
e.g. StE 285, StE 355, TStE 355, StE 460, TStE 460 |
| Fields of application: |
| Steel construction ( e.g. structural and civil engineering ), bridge and crane construction |
| |
PIPELINES FOR GAS AND COMBUSTIBLE FLUIDS
Seamless steel tubes acc. to DIN EN 10208-2 and DIN 17172 |
| |
|
|
| DIN EN 10216-2: |
Steel pipes for pipelines for combustible fluids Tubes from requirement class B |
| Steel grades: |
e.g. L290NB, L360NB, L415NB, L415QB |
| DIN 2448/17171 (replaced): |
Steel pipes for pipelines for the transport of combustible fluids and gases |
| (DIN 2448 [replaced]): |
Plain end seamless steel tubes: Dimensions and conventional masses per unit length |
| Steel grades: |
e.g. StE 290.7, StE 360.7, StE 415.7 |
| Fields of application: |
| Long-distance pipelines (e.g. oil and oil products) for compressed and liquid gases |
| |
SEAMLESS TUBES FOR PRESSURE PURPOSES AT ROOM TEMPERATURE
Seamless steel tubes acc. to DIN EN 10216-3 and DIN 17179 |
| |
|
|
| DIN EN 10216-3: |
Seamless steel tubes for pressure purposes of alloy fine- grain steels with specified properties at room temperature |
| Steel grades: |
e.g. P355N, P355NH, P355NL1, P355NL2 |
| DIN 2448/17179 (replaced): |
Seamless circular tubes of fine-grain steels for special requirements |
| (DIN 2448 [replaced]): |
Plain end seamless steel tubes: Dimensions and conventional masses per unit length |
| Steel grades: |
e.g. StE 355, WStE 355, TStE 355, EStE 355 |
| Fields of application: |
| Pressure vessel construction, apparatus engineering, pipelines, mechanical engineering and tool-building. |
| |
SEAMLESS TUBES FOR PRESSURE PURPOSES AT LOW TEMPERATURES
Seamless steel tubes acc. to DIN EN 10216-4 and DIN 17173 |
| |
|
|
| DIN EN 10216-4: |
Seamless steel tubes for pressure purposes of non-alloy and alloy steels with specified low-temperature properties. |
| DIN 2448/17173 (replaced): |
Seamless circular tubes of cold-resistant steels |
| (DIN 2448 [replaced]): |
Plain end seamless steel tubes: Dimensions and conventional masses per unit length |
| Fields of application: |
| Apparatus engineering, vessel construction, pipelines, mechanical engineering and tool-building. |
DIN 2391 Seamless Precision Steel Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
Features of Pipe Series of high-precision bright Steel Tube
Use of stainless steel under high temperature condition refer table
Corrosion Resistant Stainless Steel Tube
Corrosion Resistance of Stainless Steel Tubes
High Temperature Stainless Steel Tubes
High Temperature Stainless Steel Tubes
Heat resistant Stainless Steel Tubes
Welded Stainless Steel Pipe
U-bend Stainless Steel Tubes
Heat Exchanger Tubes
Duplex Stainless Steel Tubes
Boiler Tubes, Condenser Tubes
Corrugated Seamless Stainless Steel Pipe Tube
Non Acid-resisting Stainless Steel Tube
Bright Annealing Stainless Steel Tubes
High Temperature-Tubes and Pipes Standards
Heat Resistant Stainless Steels and Corrosion Resistant Stainless Steels-Valve Steels,Iron Baes Super alloys
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