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2. Threaded rod - Wikipedia

   en.wikipedia.org/wiki/Threaded_rod

   Metric threaded rods are marked on the end with a color code to define the ISO strength class. The color codes are: [9] Unmarked — 4.6 class (tensile strength = 400 N/mm 2, yield strength 240 N/mm 2) Yellow — 8.8 class (800 N/mm 2, 640 N/mm 2) Green — A2 stainless steel (304) Red — A4 stainless steel (316) White — 10.9 class (1000 N ...

3. SAE steel grades - Wikipedia

   en.wikipedia.org/wiki/SAE_steel_grades

   Type 304—the most common grade; the classic 18/8 (18% chromium, 8% nickel) stainless steel. Outside of the US it is commonly known as "A2 stainless steel", in accordance with ISO 3506 (not to be confused with A2 tool steel). [6] The Japanese equivalent grade of this material is SUS304.

4. Nitronic - Wikipedia

   en.wikipedia.org/wiki/Nitronic

   Nitronic alloys were developed by Armco Steel. The first of these alloys, Nitronic 40, was introduced in 1961. [1] Since 2022, the trademark has been owned by Cleveland-Cliffs Steel Corp., successor to AK Steel. [2] Electralloy is the licensed producer in North America for a wide range of Nitronic products. [3]

5. Stainless steel - Wikipedia

   en.wikipedia.org/wiki/Stainless_steel

   Stainless steel, also known as inox, corrosion-resistant steel (CRES), and rustless steel, is an alloy of iron that is resistant to rusting and corrosion. It contains iron with chromium and other elements such as molybdenum , carbon , nickel and nitrogen depending on its specific use and cost.

6. List of welding codes - Wikipedia

   en.wikipedia.org/wiki/List_of_welding_codes

   Specification for welding of steel pipelines on land and offshore - Part 1: Carbon and carbon manganese steel pipelines BS 4515-2: Specification for welding of steel pipelines on land and offshore. Duplex stainless steel pipelines PD 6705-2: Structural use of steel and aluminium. Recommendations for the execution of steel bridges to BS EN 1090-2

7. Duplex stainless steel - Wikipedia

   en.wikipedia.org/wiki/Duplex_Stainless_Steel

   Duplex steels also have higher strength. For example, a Type 304 stainless steel has a 0.2% proof strength in the region of 280 MPa (41 ksi), a 22%Cr duplex stainless steel a minimum 0.2% proof strength of some 450 MPa (65 ksi) and a superduplex grade a minimum of 550 MPa (80 ksi). [6]