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Is EN10025 S355JR weathering steel?

Posted:2015/5/4 2:57:42

ask : This EN10025 S355JR is a European code for steel, of which the properties can be found here.


Answer: EN 10 025 S355JR/JO is comes under "structural steel" catagories.
Equivalent standard is-ASTM A 572 Gr 50

-Above are"Higher strength micro-alloyed steel".

-The above-mentioned structural steel grades may be welded using any of the standard metal arc and resistance welding processes, usually without any special precautions. However, when welding heavy sections, BS 5135:1984 "Metal-arc welding of carbon and carbon manganese steels" should be consulted to determine preheat requirements at low heat inputs.

-For improved atmospheric corrosion resistance, COR-TEN B should be used.
In my opinion COR-TEN B is the best weathering steel.
[Weathering steel, best-known under the trademark COR-TEN steel, is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years.

The original Cor-Ten received the standard designation A 242 ("Cor-Ten A") from the ASTM International standards group. Newer ASTM grades are A 588 ("Cor-Ten B") and A 606 for thin sheet. All alloys are in common production and use.

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