ASTM A179 Seamless Boiler Tube description
Product Overview
Name: SA-179 Seamless Steel Tube (ASME SA-179M Heat Exchanger Tube Standard)
Standard: ASME SA-179/SA-179M
Applications: This steel tube is primarily used in heat exchangers and condensers, as well as similar heat transfer equipment. It is characterized by a minimum wall thickness and is suitable for tubular heat exchangers, condensers, and other equipment.
Specifications and Dimensions
Outer Diameter: According to the ASME SA-179/SA-179M standard, the outer diameter of this steel tube ranges from 1/8 inch to 3 inches (3.2 to 76.2 mm). However, please note that steel tubes with outer diameters and wall thicknesses smaller than those specified in this standard are also applicable, but the relevant mechanical properties may not be suitable for steel tubes with an outer diameter less than 1/8 inch (3.2 mm) or a wall thickness less than 0.015 inch (0.4 mm).
Wall Thickness: This steel tube has a minimum wall thickness; the specific wall thickness must be determined based on the specific specifications and order requirements.
ASTM A179 tube Chemistry Composition:
|
C, % |
Mn, % |
P, % |
S, % |
|
0.06-0.18 |
0.27-0.63 |
0.035 max |
0.035 max |
ASTM A179 tube Mechanical Properties:
|
Tensile Strength, MPa |
Yield Strength, MPa |
Elongation, % |
Hardness, HRB |
|
325 min |
180 min |
35 min |
72 max |
Production Process and Testing
Production Process: SA-179 seamless steel pipes are produced using a cold-drawing process, followed by heat treatment at 1200 degrees Fahrenheit (650 degrees Celsius) or higher after the final cold drawing.
Testing Requirements: The steel pipes undergo rigorous testing, including hydrostatic testing or non-destructive electrical testing (as required by the buyer), chemical composition analysis, and hardness testing. Each batch of steel pipes is sampled and tested according to standard regulations to ensure product quality meets requirements.
Test and inspection
Packaging and shipping
