2024年10月20日发(作者：司空建弼)
Introduction
EN 10025 : 2004 is the new European standard for
structural steel.
EN 10025 : 2004 is the new European standard for
structural steel. This leaflet shows the new grades,
properties and the nearest equivalent grades from
former standards including EN 10025 : 1993. The grade
designation system is also explained.
•Part 1 - General technical delivery conditions.
Corus produces a very wide range of rolled sections and
plates and the information below has been prepared to
show how the new standard applies to these products.
For information on the size ranges available please ring
+44 (0) 1724 404400 and ask for ‘Plate products range
of sizes’ for plate and plate cut from coil, or ‘Structural
sections to BS4 part 1’ for rolled sections.
History of the standard
The European Committee for Iron and Steel
Standardisation is responsible for producing the
European Standards (ENs) for structural steels. The first
of these standards, EN 10025, was published in the UK
by BSI as EN 10025 : 1990, partly superseding
BS 4360 : 1986, which was re-issued as BS 4360 : 1990.
In 1993, a second edition of EN 10025 was made
available together with EN 10113 : parts 1, 2 & 3 and EN
10155. In June 1994, EN 10210 : part 1 was published
and at the same time BS 4360 was officially withdrawn.
The balance of the BS 4360 steels not affected by these
ENs were re-issued in new British Standards BS 7613
and BS 7668. In 1996, with the publication of EN 10137,
BS 7613 was withdrawn. BS 7668 will remain until an
EN for atmospheric corrosion resistant hollow sections
is available.
In 2004 the standard EN 10025 was revised to address the
provisions of EU Construction Products Directive
(89/106/EEC). It is now published in six parts to bring
together almost all the ‘Structural Metallic Products’ into
one comprehensive standard.
•Part 6 - Technical delivery conditions for flat products
of high yield strength structural steels in the quenched
and tempered condition.
Supersedes EN 10137 : parts 1 & 2 : 1996
•Part 5 - Technical delivery conditions for structural
steels with improved atmospheric corrosion
resistance - also known as weathering steels.
Supersedes EN 10155 : 1993
•Part 4 - Technical delivery conditions for
thermomechanically rolled weldable fine grain
structural steels.
Supersedes EN 10113 : parts 1 & 3 : 1993
•Part 3 - Technical delivery conditions for normalised/
normalised rolled weldable fine grain structural steels.
Supersedes EN 10113 : parts 1 & 2 : 1993
•Part 2 - Technical delivery conditions for non-alloy
structural steels.
Supersedes EN 10025 : 1993
The new standard EN 10025 : 2004
The new standard is published in six parts and draws
together earlier standards to produce one standard for
the majority of structural steel products. The parts are:
2European structural steel standard EN 10025 : 2004
Grade designation systems
Design and technical advice is available from our
Technical Sales & Marketing department.
Grade designation systems
The designation systems used in the new standard are
similar but not identical to EN 10025 : 1993 and very
different to the familiar BS 4360 designations so the
guide below has been prepared to assist purchasers,
specifiers, designers and users of steel.
Symbols used in EN 10025 : part 2 : 2004
Non-alloy structural steels
S...
E...
Structural steel
Engineering steel
...Z..
Symbols used in EN 10025 : part 3 : 2004
Normalised/normalised rolled weldable fine grain
structural steels
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...N..
...NL..
Longitudinal Charpy V-notch impacts at a temperature not lower
than -20°C
Longitudinal Charpy V-notch impacts at a temperature not lower
than -50°C
Customer options
Grade with improved properties perpendicular to the surface
. Minimum yield strength (Reh) in MPa @ 16mm
...JR..
...J0..
...J2..
...K2..
...+AR
...+N
Longitudinal Charpy V-notch impacts 27 J @ +20°C
Longitudinal Charpy V-notch impacts 27 J @ 0°C
Longitudinal Charpy V-notch impacts 27 J @ -20°C
Longitudinal Charpy V-notch impacts 40 J @ -20°C
Supply condition as rolled
Supply condition normalised or normalised rolled
Examples: S275N, S420NL Z35
Symbols used in EN 10025 : part 4 : 2004
Thermomechanically rolled weldable fine grain
structural steels
S...Structural steel
Customer options
...C..
...Z..
Grade suitable for cold forming
Grade with improved properties perpendicular to the surface
. Minimum yield strength (Reh) in MPa @ 16mm
...M..
...ML..
Longitudinal Charpy V-notch impacts at a temperature not
lower than -20°C
Longitudinal Charpy V-notch impacts at a temperature not
lower than -50°C
Examples: S235JR+AR, S355K2C+N
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S355M, S460ML Z25
European structural steel standard EN 10025 : 20043
Grade designation systems
Grade designation systems (continued)
Symbols used in EN 10025 : part 5 : 2004
Structural steels with improved atmospheric corrosion
resistance – also known as weathering steels
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...J0..
...J2..
...K2..
...W..
...P..
...+AR
...+N
Longitudinal Charpy V-notch impacts 27 J @ 0°C
Longitudinal Charpy V-notch impacts 27 J @ -20°C
Longitudinal Charpy V-notch impacts 40 J @ -20°C
Improved atmospheric corrosion resistance
Greater phosphorus content (grade S355 only)
Supply condition as rolled
Supply condition normalised or normalised rolled
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S235J0W+AR, S355K2W+N Z25
Symbols used in EN 10025 : part 6 : 2004
Flat products of high yield strength structural steels
in the quenched and tempered condition
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...Q..
...QL..
Longitudinal Charpy V-notch impacts at a temperature not lower
than -20°C
Longitudinal Charpy V-notch impacts at a temperature not lower
than -40°C
...QL1..Longitudinal Charpy V-notch impacts at a temperature not lower
than -60°C
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S460Q, S690QL
4European structural steel standard EN 10025 : 2004
Grades, properties and nearest equivalents
Grades, properties and nearest equivalents
The tables below show the grades, properties and
nearest equivalent grades from earlier standards.
The grade designations are explained on the
previous pages.
Table 1
EN 10025 : part 2 : 2004 Non-alloy structural steels
Comparison between grades in EN 10025 : part 2 : 2004 and nearest equivalent versions in EN 10025 : 1993 and BS 4360 : 1990
EN 10025 : part 2 : 2004
GradeYield (Reh) minTensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
- S185-
40A
40B
40C
40D
43A
43B
43C
43D
50A
50B
50C
50D
50DD
-
-
-
EN 10025 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S185
-
1
S235JR
2
S235J0
S235J2
-
1
S275JR
2
S275J0
S275J2
-
1
S355JR
2
S355J0
S355J2
S355K2
E295
S335
E360
1 MPa = 1 N/mm
2
295
335
360
470/610
570/710
650/830
355490/630
275410/560
185
235
290/510 -
340/470- - S235
20 27
0
-20
27
27
S235JRG1/G2
S235J0
S235J2G3/G4
- - S275
20
0
-20
27
27
27
S275JR
S275J0
S275J2G3/G4
- - S355
20
0
-20
-20
27
27
27
40
S355JR
S355J0
S355J2G3/G4
S355K2G3/G4
- - E295
- - S335
- - E360
Notes
1For all products to be compliant with the EU Construction Products Directive (CPD 89/106/EC) the material must offer a guaranteed minimum
impact performance. This has resulted in the removal of this grade from the standard, and the lowest grade now offered is the JR version for each
yield strength variation.
2Verification of the specified impact value is only carried out when agreed at the time of the enquiry and order.
European structural steel standard EN 10025 : 20045
Grades, properties and nearest equivalents
Grades, properties and nearest equivalents (continued)
Table 2
EN 10025 : part 3 : 2004Normalised/normalised rolled weldable fine grain structural steels
Comparison between grades in EN 10025 : part 3 : 2004 and nearest equivalent versions in EN 10113 : part 2 : 1993 and BS 4360 : 1990
EN 10025 : part 3 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
40
27
40
27
40
27
40
27
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460N
S460NL
43DD
43EE
50
50EE
-
-
55C
55EE
EN 10113 : part 2 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460N
S460NL
1 MPa = 1 N/mm
2
460550/720
420520/680
355470/630
275370/510 -20
-50
-20
-50
-20
-50
-20
-50
Table 3
EN 10025 : part 4 : 2004Thermomechanically rolled weldable fine grain structural steels
Comparison between grades in EN 10025 : part 4 : 2004 and nearest equivalent versions in EN 10113 : part 3 : 1993
EN 10025 : part 4 : 2004
GradeYield (Reh) minTensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
40
27
40
27
40
27
40
27
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460M
S460ML
EN 10113 : part 3 : 1993
Grade
Strength at t = 16mm (MPa)
S275M
S275ML
S355M
S355ML
S420M
S420ML
S460M
S460ML
1 MPa = 1 N/mm
2
460550/720
420520/680
355470/630
275370/510 -20
-50
-20
-50
-20
-50
-20
-50
6European structural steel standard EN 10025 : 2004
Grades, properties and nearest equivalents
Table 4
EN 10025 : part 5 : 2004Structural steels with improved atmospheric corrosion resistance - also known as
weathering steels
Comparison between grades in EN 10025 : part 5 : 2004 and nearest equivalent versions in EN 10155 : 1993 and BS 4360 : 1990
EN 10025 : part 5 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C)
0
-20
355470/6300
-20
355470/6300
-20
-20
Energy (J)
t = 16mm
27
27
27
27
27
27
40
S235J0W
S235J2W
S355J0WP
S355J2WP
S355J0W
S355J2W
S355K2W
-
-
WR50A
-
WR50B
WR50C
WR50D
EN 10155 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S235J0W
S235J2W
S355J0WP
S355J2WP
S355J0W
S355J2W
S355K2W
1 MPa = 1 N/mm
2
235360/510
Table 5
EN 10025 : part 6 : 2004Flat products of high yield strength structural steels in the quenched and tempered condition
Comparison between grades in EN 10025 : part 6 : 2004 and nearest equivalent versions in EN 10137 : part 2 : 1996 and BS 4360 : 1990
EN 10025 : part 6 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C)
1
Energy (J)
t = 16mm
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
S460Q
S460QL
S460QL1
S500Q
S500QL
S500QL1
S550Q
S550QL
S550QL1
S620Q
S620QL
S620QL1
S690Q
S690QL
S690QL1
S890Q
S890QL
S890QL1
S960Q
S960QL
-
-
55F
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
EN 10137 : part 2 : 1996
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S460Q
S460QL
S460QL1
S500Q
S500QL
S500QL1
S550Q
S550QL
S550QL1
S620Q
S620QL
S620QL1
S690Q
S690QL
S690QL1
S890Q
S890QL
S890QL1
S960Q
S960QL
1 MPa = 1 N/mm
2
Note
1 Other impact temperatures can be specified.
960980/1150
890940/1100
690770/940
620700/890
550640/820
500590/770
460550/720 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
European structural steel standard EN 10025 : 20047
2024年10月20日发(作者：司空建弼)
Introduction
EN 10025 : 2004 is the new European standard for
structural steel.
EN 10025 : 2004 is the new European standard for
structural steel. This leaflet shows the new grades,
properties and the nearest equivalent grades from
former standards including EN 10025 : 1993. The grade
designation system is also explained.
•Part 1 - General technical delivery conditions.
Corus produces a very wide range of rolled sections and
plates and the information below has been prepared to
show how the new standard applies to these products.
For information on the size ranges available please ring
+44 (0) 1724 404400 and ask for ‘Plate products range
of sizes’ for plate and plate cut from coil, or ‘Structural
sections to BS4 part 1’ for rolled sections.
History of the standard
The European Committee for Iron and Steel
Standardisation is responsible for producing the
European Standards (ENs) for structural steels. The first
of these standards, EN 10025, was published in the UK
by BSI as EN 10025 : 1990, partly superseding
BS 4360 : 1986, which was re-issued as BS 4360 : 1990.
In 1993, a second edition of EN 10025 was made
available together with EN 10113 : parts 1, 2 & 3 and EN
10155. In June 1994, EN 10210 : part 1 was published
and at the same time BS 4360 was officially withdrawn.
The balance of the BS 4360 steels not affected by these
ENs were re-issued in new British Standards BS 7613
and BS 7668. In 1996, with the publication of EN 10137,
BS 7613 was withdrawn. BS 7668 will remain until an
EN for atmospheric corrosion resistant hollow sections
is available.
In 2004 the standard EN 10025 was revised to address the
provisions of EU Construction Products Directive
(89/106/EEC). It is now published in six parts to bring
together almost all the ‘Structural Metallic Products’ into
one comprehensive standard.
•Part 6 - Technical delivery conditions for flat products
of high yield strength structural steels in the quenched
and tempered condition.
Supersedes EN 10137 : parts 1 & 2 : 1996
•Part 5 - Technical delivery conditions for structural
steels with improved atmospheric corrosion
resistance - also known as weathering steels.
Supersedes EN 10155 : 1993
•Part 4 - Technical delivery conditions for
thermomechanically rolled weldable fine grain
structural steels.
Supersedes EN 10113 : parts 1 & 3 : 1993
•Part 3 - Technical delivery conditions for normalised/
normalised rolled weldable fine grain structural steels.
Supersedes EN 10113 : parts 1 & 2 : 1993
•Part 2 - Technical delivery conditions for non-alloy
structural steels.
Supersedes EN 10025 : 1993
The new standard EN 10025 : 2004
The new standard is published in six parts and draws
together earlier standards to produce one standard for
the majority of structural steel products. The parts are:
2European structural steel standard EN 10025 : 2004
Grade designation systems
Design and technical advice is available from our
Technical Sales & Marketing department.
Grade designation systems
The designation systems used in the new standard are
similar but not identical to EN 10025 : 1993 and very
different to the familiar BS 4360 designations so the
guide below has been prepared to assist purchasers,
specifiers, designers and users of steel.
Symbols used in EN 10025 : part 2 : 2004
Non-alloy structural steels
S...
E...
Structural steel
Engineering steel
...Z..
Symbols used in EN 10025 : part 3 : 2004
Normalised/normalised rolled weldable fine grain
structural steels
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...N..
...NL..
Longitudinal Charpy V-notch impacts at a temperature not lower
than -20°C
Longitudinal Charpy V-notch impacts at a temperature not lower
than -50°C
Customer options
Grade with improved properties perpendicular to the surface
. Minimum yield strength (Reh) in MPa @ 16mm
...JR..
...J0..
...J2..
...K2..
...+AR
...+N
Longitudinal Charpy V-notch impacts 27 J @ +20°C
Longitudinal Charpy V-notch impacts 27 J @ 0°C
Longitudinal Charpy V-notch impacts 27 J @ -20°C
Longitudinal Charpy V-notch impacts 40 J @ -20°C
Supply condition as rolled
Supply condition normalised or normalised rolled
Examples: S275N, S420NL Z35
Symbols used in EN 10025 : part 4 : 2004
Thermomechanically rolled weldable fine grain
structural steels
S...Structural steel
Customer options
...C..
...Z..
Grade suitable for cold forming
Grade with improved properties perpendicular to the surface
. Minimum yield strength (Reh) in MPa @ 16mm
...M..
...ML..
Longitudinal Charpy V-notch impacts at a temperature not
lower than -20°C
Longitudinal Charpy V-notch impacts at a temperature not
lower than -50°C
Examples: S235JR+AR, S355K2C+N
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S355M, S460ML Z25
European structural steel standard EN 10025 : 20043
Grade designation systems
Grade designation systems (continued)
Symbols used in EN 10025 : part 5 : 2004
Structural steels with improved atmospheric corrosion
resistance – also known as weathering steels
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...J0..
...J2..
...K2..
...W..
...P..
...+AR
...+N
Longitudinal Charpy V-notch impacts 27 J @ 0°C
Longitudinal Charpy V-notch impacts 27 J @ -20°C
Longitudinal Charpy V-notch impacts 40 J @ -20°C
Improved atmospheric corrosion resistance
Greater phosphorus content (grade S355 only)
Supply condition as rolled
Supply condition normalised or normalised rolled
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S235J0W+AR, S355K2W+N Z25
Symbols used in EN 10025 : part 6 : 2004
Flat products of high yield strength structural steels
in the quenched and tempered condition
S...Structural steel
. Minimum yield strength (Reh) in MPa @ 16mm
...Q..
...QL..
Longitudinal Charpy V-notch impacts at a temperature not lower
than -20°C
Longitudinal Charpy V-notch impacts at a temperature not lower
than -40°C
...QL1..Longitudinal Charpy V-notch impacts at a temperature not lower
than -60°C
Customer options
...Z..Grade with improved properties perpendicular to the surface
Examples: S460Q, S690QL
4European structural steel standard EN 10025 : 2004
Grades, properties and nearest equivalents
Grades, properties and nearest equivalents
The tables below show the grades, properties and
nearest equivalent grades from earlier standards.
The grade designations are explained on the
previous pages.
Table 1
EN 10025 : part 2 : 2004 Non-alloy structural steels
Comparison between grades in EN 10025 : part 2 : 2004 and nearest equivalent versions in EN 10025 : 1993 and BS 4360 : 1990
EN 10025 : part 2 : 2004
GradeYield (Reh) minTensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
- S185-
40A
40B
40C
40D
43A
43B
43C
43D
50A
50B
50C
50D
50DD
-
-
-
EN 10025 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S185
-
1
S235JR
2
S235J0
S235J2
-
1
S275JR
2
S275J0
S275J2
-
1
S355JR
2
S355J0
S355J2
S355K2
E295
S335
E360
1 MPa = 1 N/mm
2
295
335
360
470/610
570/710
650/830
355490/630
275410/560
185
235
290/510 -
340/470- - S235
20 27
0
-20
27
27
S235JRG1/G2
S235J0
S235J2G3/G4
- - S275
20
0
-20
27
27
27
S275JR
S275J0
S275J2G3/G4
- - S355
20
0
-20
-20
27
27
27
40
S355JR
S355J0
S355J2G3/G4
S355K2G3/G4
- - E295
- - S335
- - E360
Notes
1For all products to be compliant with the EU Construction Products Directive (CPD 89/106/EC) the material must offer a guaranteed minimum
impact performance. This has resulted in the removal of this grade from the standard, and the lowest grade now offered is the JR version for each
yield strength variation.
2Verification of the specified impact value is only carried out when agreed at the time of the enquiry and order.
European structural steel standard EN 10025 : 20045
Grades, properties and nearest equivalents
Grades, properties and nearest equivalents (continued)
Table 2
EN 10025 : part 3 : 2004Normalised/normalised rolled weldable fine grain structural steels
Comparison between grades in EN 10025 : part 3 : 2004 and nearest equivalent versions in EN 10113 : part 2 : 1993 and BS 4360 : 1990
EN 10025 : part 3 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
40
27
40
27
40
27
40
27
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460N
S460NL
43DD
43EE
50
50EE
-
-
55C
55EE
EN 10113 : part 2 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460N
S460NL
1 MPa = 1 N/mm
2
460550/720
420520/680
355470/630
275370/510 -20
-50
-20
-50
-20
-50
-20
-50
Table 3
EN 10025 : part 4 : 2004Thermomechanically rolled weldable fine grain structural steels
Comparison between grades in EN 10025 : part 4 : 2004 and nearest equivalent versions in EN 10113 : part 3 : 1993
EN 10025 : part 4 : 2004
GradeYield (Reh) minTensile (Rm) Charpy V-notch longitudinal
Temp (°C) Energy (J)
t = 16mm
40
27
40
27
40
27
40
27
S275N
S275NL
S355N
S355NL
S420N
S420NL
S460M
S460ML
EN 10113 : part 3 : 1993
Grade
Strength at t = 16mm (MPa)
S275M
S275ML
S355M
S355ML
S420M
S420ML
S460M
S460ML
1 MPa = 1 N/mm
2
460550/720
420520/680
355470/630
275370/510 -20
-50
-20
-50
-20
-50
-20
-50
6European structural steel standard EN 10025 : 2004
Grades, properties and nearest equivalents
Table 4
EN 10025 : part 5 : 2004Structural steels with improved atmospheric corrosion resistance - also known as
weathering steels
Comparison between grades in EN 10025 : part 5 : 2004 and nearest equivalent versions in EN 10155 : 1993 and BS 4360 : 1990
EN 10025 : part 5 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C)
0
-20
355470/6300
-20
355470/6300
-20
-20
Energy (J)
t = 16mm
27
27
27
27
27
27
40
S235J0W
S235J2W
S355J0WP
S355J2WP
S355J0W
S355J2W
S355K2W
-
-
WR50A
-
WR50B
WR50C
WR50D
EN 10155 : 1993
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S235J0W
S235J2W
S355J0WP
S355J2WP
S355J0W
S355J2W
S355K2W
1 MPa = 1 N/mm
2
235360/510
Table 5
EN 10025 : part 6 : 2004Flat products of high yield strength structural steels in the quenched and tempered condition
Comparison between grades in EN 10025 : part 6 : 2004 and nearest equivalent versions in EN 10137 : part 2 : 1996 and BS 4360 : 1990
EN 10025 : part 6 : 2004
GradeYield (Reh) min Tensile (Rm) Charpy V-notch longitudinal
Temp (°C)
1
Energy (J)
t = 16mm
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
S460Q
S460QL
S460QL1
S500Q
S500QL
S500QL1
S550Q
S550QL
S550QL1
S620Q
S620QL
S620QL1
S690Q
S690QL
S690QL1
S890Q
S890QL
S890QL1
S960Q
S960QL
-
-
55F
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
EN 10137 : part 2 : 1996
Grade
BS 4360 : 1990
Grade
Strength at t = 16mm (MPa)
S460Q
S460QL
S460QL1
S500Q
S500QL
S500QL1
S550Q
S550QL
S550QL1
S620Q
S620QL
S620QL1
S690Q
S690QL
S690QL1
S890Q
S890QL
S890QL1
S960Q
S960QL
1 MPa = 1 N/mm
2
Note
1 Other impact temperatures can be specified.
960980/1150
890940/1100
690770/940
620700/890
550640/820
500590/770
460550/720 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
European structural steel standard EN 10025 : 20047