TP347HStainless steel pipe

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The TP347H stainless steel pipe is a kind of austenitic stainless acid resistant steel, with good resistance to intergranular corrosion resistance and good corrosion resistance, mainly used in aerospace, petrochemical, food, paper and other industries.

TP347H stainless steel is austenitic stainless acid resistant steel, are widely used in aerospace, petrochemical, food, paper and other industries, such as the exhaust duct and branch of aero engine turbine compressor, heat pipes and parts of not more than 850 DEG C under the working conditions in a small load and temperature.

The characteristics of TP347H stainless steel pipe is corrosion, intergranular anti good in acid, alkali, salt solution, have good corrosion resistance.

The physical constants of TP347H stainless steel pipe:

Melting point: the temperature of 1398-1427 DEG C

Specific heat capacity: 500J (kg.K)

The elastic modulus at 20 DEG C: 196GPa, 200 DEG C to 400 DEG C for 186GPa, 177GPa, 500 degrees 167GPa, 600 DEG C for 167GPa

Specific resistance: 0.75nN.m

Chemical composition of TP347H stainless steel pipe:

C: = 0.10, Si: = 1 Mn: = 2 Cr:17.0-20.0 Ni:9.0-13.0 Nb:8 * C%-1.5 S: = 0.030 P: = 0.035

Mechanical properties of TP347H stainless steel pipe:

20 C: 559-637 235-274 53-61 63-69 20.6-27.4

500 C: 392-429 147-216 28-36 56-66 23.5-28.4

600 C: 363-382 137-186 28-34 54-65 24.5-30.4

650 C: 304-363 118-167 31-38 54-61 23.5-31.4

700 C: 245-304 31-42 44-60 24.5-29.4

Heat treatment of TP347H stainless steel pipe:

The temperature of 1000-1100 DEG C solid solution treatment, water cooling

Corrosion resistance of TP347H stainless steel pipe:

Uniform corrosion

Intergranular corrosion by sulfuric acid with copper sulphate and copper scrap method (T method), copper and sulfuric acid sulfuric acid method (L method) and 65%HNO3 method (X method) test

Antioxidation: at 750-800 DEG C in the air, the antioxidant properties of this steel has stable

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Q:Galvanized steel pipe DN100 and SC100
DN is the meaning of "bore", also expressed in water supply and drainageSC is welded steel pipe, generally GB tube, that is, thick walled steel pipe, look at the design requirementsMT refers to the wire tube, usually thin-walled tube, there are KBG and JDG
Q:What is the process of spiral steel tube production?
Visual inspection: some basic parameters are checked by professional technicians.6. ultrasonic inspection: 100% inspection of inner and outer weld seam and parent material on both sides of weld seam.
Q:What quota is reserved for buried DN20 steel pipe?
If it is reserved for embedded pipe pre buried steel waterproof casing, set of waterproof casing steel production and installation is to set the quota items, if the outdoor installation of welded steel pipe buried steel casing pre quota items, if it is a reserved hole, then there is no need to set the quota items.
Q:Are there specifications for scaffold steel pipe with 48mm * 3.2mm?
However, there are a variety of non GB steel tubes on the market, mainly in the wall thickness, and are thinner than the national standard requirements, you said that thickness may have, but the thinnest only about 2.6mm-2.7mm.
Q:What does "spiral welded steel pipe" DN325*10 mean?
Labeling is wrong: it should be said for 325*10, the diameter of pipe wall thickness of 10, 325;For example, the nominal diameter shall be: DN300.
Q:What is the size of seamless steel tube DN150?
Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
Q:Difference between cold rolled steel pipe and common steel pipe
1, from the dimension accuracy above, cold-rolled steel pipe size is good, high precision2. from the outward appearance, the surface of cold-rolled steel pipe is bright, and the surface of hot rolled steel pipe has obvious oxide skin or red rust
Q:What's the difference between seamless steel pipe and welded pipe?
Seamless steel pipe having a hollow cross section, used as a conduit for conveying fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared with the solid steel such as round steel, the steel tube is lighter in strength and is an economical section steel when the flexural strength and torsion strength are the same.Widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing circular parts, can improve the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
Q:There are multiple welded galvanized steel pipe outer diameter 108mm wall thickness 4mm length of 6 meters
Galvanized steel pipe is divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, and the latter is also advocated by the state for the moment, can be used. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries also issued a civilization, indeed from two, 000 years since the galvanized pipe as a water supply pipe, the New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe. Hot dip galvanized steel pipe is widely used in fire, power and highway.
Q:What are the uses of seamless steel tubes?
Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, such as rolling bearing ring, Jack and so on, has been widely used in steel pipe manufacturing.

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