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ASME SA249 TP304 Stainless Steel Welded Tube, Bright Annealed, Plain End
The Inner and Outer Brightening Effect of Stainless Steel Welded
Pipes
During the production and processing of stainless steel welded
pipes, mechanical processing, chemical treatment, electrolytic
polishing and other technical means can greatly improve their
surface smoothness and glossiness, thereby forming a bright effect
both inside and outside. This type of bright inner and outer pipe
material can improve the surface smoothness and overall aesthetics
of the pipeline, further enhancing its service life, as well as
enhancing its corrosion resistance and oxidation resistance.
Therefore, the internal and external brightness of stainless steel
welded pipes has broad application value in practical production
and engineering applications.
The processing method for the inner and outer brightness of
stainless steel welded pipes
The internal and external brightness of stainless steel pipes is
mainly achieved through the following technical means:
1. Mechanical polishing: Using mechanical equipment to process the
surface of stainless steel pipes, removing burrs and stains on the
surface, making it smoother and smoother.
2. Chemical treatment: By using techniques such as chemical acid
washing, the surface oxide layer is removed through chemical
reactions, making the pipeline surface cleaner and purer.
3. Electrolytic polishing: Polishing treatment through electrolytic
reaction can significantly improve the surface smoothness of
stainless steel pipes, forming a mirror effect.
The above three methods can be combined to achieve continuous
processing, resulting in a bright effect both inside and outside.
The Use Value of Bright Inner and Outer Surface of Stainless Steel
Welded Pipes
The use value of bright inside and outside of stainless steel
welded pipes is mainly reflected in the following aspects:
1. Improving the overall aesthetics and decorative effect of
pipelines, making the pipeline system more aesthetically pleasing
and generous, is beneficial for the decorative effect inside and
outside the building.
2. Improve the surface smoothness and flatness of pipelines,
prevent problems such as leaks and dead corners inside the
pipelines, and improve the fluid transmission efficiency and smoothness of pipelines.
3. Improve the corrosion resistance and oxidation resistance of pipelines, prolong their service
life in harsh environments, and make them more durable and
reliable.
Chemical Composition:
Elements | 304L(wt%) | 316L (wt%) |
(C) Carbon, max | 0.035 | 0.035 |
(Mn) Manganese, max | 2.00 | 2.00 |
(P) Phosphorus, max | 0.040 | 0.040 |
(S) Sulfur, max | 0.030 | 0.030 |
(Si) Silicon, max | 0.75 | 0.75 |
(Ni) Nickel | 8.0-13.0 | 10.0-15.0 |
(Cr) Chromium | 18.0-20.0 | 16.0-18.0 |
(Mo) Molybdenum | N/A | 2.0-3.0 |
(Fe) Iron | Bal. | Bal. |
(Cu) Copper | N/A | N/A |
(N) Nitrogen | N/A | N/A |
Dimensional Tolerences (mm)
Size OD | Nominal Wall | Outside Diameter | Length | Wall |
1/2" (12.7) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
3/4" (19.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
1" (25.4) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
1-1/2" (38.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
2" (50.8) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
2-1/2" (63.5) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
3" (76.2) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
4" (101.6) | 0.083" (2.11) | +/-0.015" (0.38) | +1/8" (3.18) - 0 | +/-10.0% |
6" (152.4) | 0.083" (2.11) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
6" (152.4) | 0.109" (2.77) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
8" (203.2) | 0.109" (2.77) | +0.061" (1.55)/-0.031" (0.79) | +1" (25.4) - 0 | +/-10.0% |