ASTM A312 TP 304/304L Stainless Steel Pipe
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The main difference in the chemical composition of A312 TP304 stainless steel pipe and TP304L stainless steel pipe is the range of carbon content and nickel content. The upper limit of carbon content of 304L steel pipe is 0.035%, which is lower than TP304. The carbon element in steel can provide strength, but according to the chromium deficiency principle, the precipitation of chromium carbide will affect corrosion resistance; while nickel can improve corrosion resistance.
ASTM A312 TP304 stainless steel pipe outer diameter 6-630mm, wall thickness 1-50mm, length 4000mm-13000mm.
The main steel types include: 300 series stainless steel, duplex steel, high nickel alloy, etc. Special materials and specifications can be produced according to customer needs. Products are suitable for petroleum, chemical and chemical fiber, medical machinery, smelting, aerospace, papermaking, food, shipbuilding, environmental protection, boilers, heat exchangers, pressure vessels, condensers, water conservancy, electricity and other industries.
Chemical Composition Of ASTM A312 TP 304L Stainless Steel Pipe
|
Weight % |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
304L |
.035 |
2.00 |
.045 |
.030 |
1.00 |
18.0-20.0 |
8.0-13.0 |
Therefore, looking at the comparison of mechanical properties, as shown in the figure below, the minimum yield strength and tensile strength of TP304 are higher than that of TP304L; but the corrosion resistance of TP304 is not as good as TP304L because the low carbon content can reduce the precipitation of chromium carbide.
Mechanical Properties Of ASTM A312 TP 304L Seamless Pipe
|
Grade |
Tensile |
||||
|
Ultimate/Min |
Yield/Min |
Elongation/Min |
|||
|
KSI |
MPA |
KSI |
MPA |
% |
|
|
304L |
70 |
485 |
25 |
170 |
35 |
TP 304L Stainless Steel Pipe

ASTM A312 TP 304L Stainless Steel Seamless Pipe Packaging
Bundle Packing
Wooden Case
Wooden Case for U Tubes
Reinforced by angle bar

gnee has more than 5,000 tons of pipes of various sizes and standards, mainly carbon steel and stainless steel, covering pipes, profiles, plates and other products. Exported to more than 60 countries and regions including Russia, Canada, India, Brazil, and Southeast Asia.
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