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S355G13+N Offshore Hollow Sections RHS, SHS and CHS
Beverly Steel Malaysia supplies wide range of hot finished offshore structural fine grain steel grade EN10225 S355G13+N, steel number 1.1182+N hollow sections RHS,SHS and CHS with its CEV-Carbon Equivalent Value of 0.43. This offshore steel hollow sections are manufactured according to tight tolerance with consistent properties and are shrimp high in cholesterol excellent in welding which benefit to our customers as it has ultimately reducing fabrication cost.
All our offshore steel materials are normalised rolled at a temperature between 850 degree C to 950 degree C. This ensure uniform grain structure and mechanical properties
throughout the section, particularly important during fabrication around the weld area and in the corner regions. Our mill manufacturing process also guarantees toughness properties in the event of good news website s collision at low temperatures.
EN10225 S355G13+N, Steel Number 1.1182+N, Norsok Standard Y28, Equivalent to EN10225 S355G14+N for some applications.
S355G13+N Chemical Composition for Welded Hollow Sections as per Table 8
|
Steel Name |
Steel Number |
C max. |
Si |
Mn |
P max. |
S max. |
Cr max. |
Mo max. |
Ni max. |
Al (Total)b |
|
% |
% |
% |
% |
% |
% |
% |
% |
% |
||
|
Ladle and product analysisa |
||||||||||
|
S355G13+N c |
1.1182+N |
16 |
0,15 to 0,55 |
1,60 max. |
0,025 |
0,015 |
0,25 |
0,08 |
0,30 |
0,060 max |
|
a) For product chemical composition variations see Table 12. b)The total aluminium to nitrogen ratio shall be a minimum of 2:1. When other nitrogen binding elements are used, the minimum Al value and Al:N ratio does not apply. c) The levels of the residual elements arsenic, antimony, tin, lead, bismuth and calcium shall not exceed 0,02 % As, 0,010 % Sb, 0,020 % Sn, 0,010 % Pb, 0,010 % Bi and 0,005 % Ca. Boron (B) shall not exceed 0,000 5 %. These elements shall be checked at least once every 5 000 tonnes at each manufacturing location and shall be reported as a ladle analysis. |
||||||||||
|
Steel Name |
Steel Number |
Cu max. |
N max. |
Nb max. |
V max. |
Ti max. |
Cr+Mo+Ni+Cu max. |
Nb+V max. |
Nb+V+Ti max. |
|
% |
% |
% |
% |
% |
% |
% |
% |
||
|
Ladle and product analysisa |
|||||||||
|
S355G13+N c |
1.1182+N |
0,35 |
0,014 |
0,050 |
0,100 |
0,020 |
0,80 |
0,10 |
0,12 |
|
a) For product chemical composition variations see Table 12. b) The total aluminium to nitrogen ratio shall be a minimum of 2:1. When other nitrogen binding elements are used, the minimum Al value and Al:N ratio does not apply. c) The levels of the residual elements arsenic, antimony, tin, lead, bismuth and calcium shall not exceed 0,02 % As, 0,010 % Sb, 0,020 % Sn, 0,010 % Pb, 0,010 % Bi and 0,005 % Ca. Boron (B) shall not exceed 0,000 5 %. These elements shall be checked at least once every 5 000 tonnes at each manufacturing location and shall be reported as a ladle analysis. |
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Table 12 — Permissible deviations of the product analysis from the specified limits of the ladle analysis applicable to steels of group 1
|
Element |
Permissible maximum content in the ladle analysis % |
Permissible deviation of the product analysis from specified limits for the ladle analysis % |
|
C |
0,20 |
+0,02 |
|
Si |
0,50 |
+0,05 |
|
Mn |
1,65 |
-0,05 +0,10 |
|
P |
0.035 |
+0,005 |
|
S |
0,030 |
+0,005 |
|
Nb |
0,060 |
+0,010 |
|
V |
0,12 |
+0,02 |
|
Ti |
0,050 |
+0,01 |
|
Cr |
0,30 |
+0,05 |
|
Ni |
0,70 |
+0,05 |
|
Mo |
0,25 |
+0,03 |
|
Cu |
0,35 |
+0,04 |
|
Nb |
0,015 |
+0,002 |
|
Al total |
≥ 0,020 |
−0,005 |
S355G13+N Mechanical Properties for Welded Hollow Sections as per Table 9
|
Steel name |
Steel number |
Tensile strength Rm |
Minimum yield strength ReH for thickness t in mm |
Minimum elongation A on gauge length of 5,65 √So |
Minimum average Charpy V-notch impact test value |
||
|
t ≤ 20 |
Re /Rm maximum ratio |
Temp. |
Energy a |
||||
|
MPab |
MPab |
% |
°C |
J |
|||
|
S355G13+N |
1.1182+N |
460 to 620 |
355 |
0,88 |
22 |
-40 |
50 |
|
When agreed at the lupoitalianoorg time of enquiry and order, hollow sections with thicknesses greater than specified shall be supplied, see option 25. a) For transverse weld testing, test temperature is E20 °C with minimum values of 36 J for all grades. b) 1 MPa = 1 N/mm2. |
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Option 25. Sections/hollow sections with thicknesses greater than specified shall be supplied. All the technical requirements of this European Standard shall be maintained (see Tables 7, 9 and 11 or www.beverlysteel.com Technical Info -- Comparison of Offshore Seamless Hollow Sections)
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