Menyoroti:
Customized AISI Stainless Steel Pipe
, 347H Stainless Steel Pipe
, UNS 34709 Stainless Steel Tubing
Customized AISI Stainless Steel Pipe 347H/UNS34709 For Energy
Overview
347H stainless steel is an ideal choice for many applications because it offers superior corrosion resistance and mechanical properties at elevated temperatures up to about 850°F (454°C). Its composition consists mainly of iron, chromium, and nickel, along with trace amounts of other elements like carbon, manganese, phosphorus, sulfur, silicon, and aluminium, which give it high tensile strength (up to 870MPa) along with good formability without sacrificing toughness or strength. Additionally, this grade has great impact strength as well as excellent fatigue behaviour, making it suitable for many industrial applications such as petrochemical plants, nuclear power plants, oil refineries, automotive exhaust systems, food processing machinery, pressure vessels etc.
Application
Petrochemical Industry
Oil and Gas Industry
Chemical Industry
Power Plant Industry
Energy Industry
Pharmaceuticals Industry
Pulp & Paper Indusry
Food Processing Industry
Aerospace Industry
Refining Industry
347H Stainless Pipe Chemical Composition
| Grade |
|
Si |
C |
P |
Mn |
S |
Cr |
N |
Ni |
Co + Ta |
| 347H |
Min |
- |
0.04 |
- |
- |
- |
17 |
- |
9 |
8xC min |
| max |
1 |
0.1 |
0.045 |
2 |
0.03 |
19 |
- |
13 |
1.00max |
Physical Properties
The physical properties of stainless steel 347H include high tensile strength (up to 870MPa) as well as excellent ductility and malleability, even at low temperatures. Its uniform structure provides superior formability without sacrificing strength or toughness. The material is highly resistant to stress cracking and crevice corrosion due to its good weldability characteristics, with no preheating necessary before welding operations can begin.
Density
lbm/in^3 |
Coefficient of
Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F |
Specific Heat BTU/lbm -°F |
Modules of Elasticity (annealed)^2-psi |
| at 68 °F |
at 68 – 212°F |
at 68 – 1832°F |
68-932°F |
at 32 – 212°F |
in tension (E) |
| 0.288 |
9.2 |
11.4 |
14.7 |
0.12 |
28 x 10^6 |
Mechanical Properties Stainless Steel
| Grade |
Tensile Strength ksi (MPa) min |
Yield Strength 0.2% ksi offset ksi (MPa) min |
Elongation (% in 50mm) min |
Hardness (Brinell) MAX |
Hardness (Rockwell B) MAX |
| 347H |
75
(515) |
30
(205) |
40 |
201 |
95 |
Feature
(1) High temperature strength and high temperature plasticity
(2) Excellent oxidation resistance and corrosion resistance
(3) Good organizational stability
(4) Uniform chemical composition
(5) Has good processing performance and welding performance
(6) High dimensional accuracy and surface quality
Package Process
1.with plastic cap to protect both ends
2.weaving bag wrapped outside the pipe
3.then pack into wooden case.
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