ASTM A312 Seamless and Welded Stainless Steel Pipe/ Tubo de acero inoxidable
ASTM A312 stainless steel pipe is the most common industrial tube.
Application: ASTM A312 stainless steel pipe is used for High-temperature and General Corrosive Service.
Main Standard: ASTM A312, JIS G3459
Main Grade: 304, 316L; 1.4301, 1.4404
Outer Diameter: 6-426mm
Wall Thickness: 0.5-36mm
Length: Random or Fixed
Surface Treatment: pickling or as customers’ requirement
How is it Measured? Outer Diameter (A) X Schedule or Wall Thickness (B) X Length
PS: 304 VS 316L
| 304 benefits | 316L benefits |
| Lower cost | Superior corrosion |
| Easier to weld and form | Stronger and more durable |
| Able to withstand corrosion from most oxidizing acids | Better for marine, offshore and washdown applications |
Advantages Of Welded Tubes & Pipes
A. Lower cost compared to the equivalent seamless alternative
B. Short lead time
C. Better surface finishing of outside and inside, the internal material surface for welded tubes can be checked prior to manufacture
D. Thinner wall thickness and more uniform
E. Tighter tolerance
Advantages Of Seamless Tubes & Pipes
A. Heavy and thick wall thickness
B. No weld seam. Generally be considered as better properties and corrosion resistance
C. Better ovality, or roundness
