| Specification: | ASME SA423 | Grade: | Grade 1 |
|---|---|---|---|
| Type: | Welded | End: | Plain End， Beveled End |
| Size Standard: | ANSI B16.10 & B16.19 & Customized | Application: | Boiler， Superheater， Heat Exchanger， Condenser |
| High Light: | Low Alloy Steel Welded Tube， Grade 1 Stainless Steel Welded Tube， Stainless Steel ERW Boiler Tube | ||
ASME SA423 Grade 1 Low-alloy Steel Welded Tube ERW For Boiler
What is ASME SA423/ASTM A423?
This specification covers standards for minimum-wall-thickness， seamless， and electric-resistance welded low-alloy steel tubes to be used for pressure containing parts， that is economizers， and for other corrosion resistant applications. Steel tubes shall either be processed to hot or cold finish. All tubes shall be normalized or given such heat treatment as may be necessary to conform to the requirements of this specification.
What is ASME SA423 Corten Steel Tubes GRADE 1?
ASME SA423 Corten Steel Pipes Grade 1 are high-strength alloy pipes made of molybdenum and chromium as the primary elements also these pipes are used mainly in oil and gas transmission， water pipelines， and other power plants. The material is suitable for extreme temperature changes and has excellent corrosion resistance.
ASTM SA423 Corten Steel Pipes GRADE 1 are also known as weathering steel or corten steel. This corten steel is a series of steels designed to eliminate the need for coating and to produce stable rust-like looks after being exposed to the atmosphere over many years. The substance is corrosion-resistant， and the unprotected upper surface develops a tarnish. Once produced， the tarnish avoids environmental exposure， allowing the material's core to stay protected from corrosion for extended periods.
These tubes are popular for outdoor systems， such as economizers and air-preheating pipes， that may be exposed to various conditions. The rust-colored patina that forms over time gives these tubing their distinctive look and helps slow the corrosion rate.
Chemical Composition:
| Element | GR 1 |
| C | 0.15 max. |
| Mn | 0.55 max. |
| P | 0.06–0.16 |
| S | 0.060 max. |
| Si | 0.10 min. |
| Cu | 0.20–0.60 |
| Cr | 0.24–1.31 |
| Ni | 0.20–0.70 |
Equivalent Standard For Corten Steel ASTM A423 Pipes & Tubes
| APPLICATION | BRITISH STANDARD | JAPANESEJIS | GERMAN DIN | AMERICAN ASTM |
| AIR PRE HEATERS | BS-6323-5 BS-6323-6 | JIS G 3445 | DIN 17177 EN 10217-1 AND 2 EN 10305-2 AND 3 | ASTM A423 GR.1 ASTM A214 |
ASTM A423 Grade 1 Mechanical Properties
| Grade | Yield Strength MPa(min) | Tensile Strength MPa | Elongation % (min) |
| Corten A | 355 | 470-630 | 20 |
Applications:
-Air Preheater Unit
-Steam generating Boiler
-Power Generation
-Economiser
-Heat Exchangers
-Electric Power Plants
-Fossil Fuel Plants
-Water Supply Systems
-Waste Heat Plants
-Cogeneration Failities
