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DIN17100 St 52-3U/ DIN17100St 52-3N Steel Plates Resistant to Weathering grades are used for manufacturing welded, riveted or bolted structures, e. g. in bridge, and vehicle construction. In general, the specific rust-building properties of Allwesta steel grades make surface protections of structures built of this steel grade unnecessary, provided that the 'Stahl-Eisen-Werkstoffblatt' (Iron and steel material sheet) 087 Lieferung, Verarbeitung und Anwendung(Weatherresistant structural steel, guidelines for delivery, processing and application) is observed.
The user of these steel grades must make sure that his calculation, design and processing methods are appropriate for the material and comply with the state-of-theart. The good properties of Allwesta steel grades are not negatively affected by cold or hot-forming. St 52-3U/St 52-3N are recommended for cold-forming. Suitability for cold-forming must be agreed upon in the order.
Specimens were fabricated from low-carbon structural steel St 52-3U/ St 52-3N conformed to JUS EN 10025. 2003 Standard specification. Mechanical properties of the steel are given in Table 1.
Table 1. Mechanical properties of steel
|
Grade |
Tensile |
Min Yield Strength at 16mm N/mm |
Max Thk for Specified Yield N/mm |
Impact Energy(J��) |
||
|
Temp�� |
��150mm |
��150mm |
||||
|
St 52-3U |
490/630 |
355 |
250 |
0 |
27 |
23 |
|
490/630 |
355 |
250 |
-20 |
27 |
23 |
|
The chemical composition, shown in Table 2, conformed with the requirements of the St 52-3U/ St 52-3N Standard specification.
Table 2. Chemical composition of steel
|
Grade |
C |
Mn |
Si |
P |
S |
|
|
St 52-3U |
0.22 |
1.60 |
0.60 |
0.040 |
0.40 |
|
|
0.20 |
1.60 |
0.55 |
0.035 |
0.035 |
||
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
If you are interested in our company or products, welcome to visit our company or local offices; you can also get contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.
BBN SHIP STEEL FACTORY
