Designation:
A743/A743M-13a Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
A451ASTM A451-06 Standard Specification for Centrifugally Cast Austenitic Steel Pipe for High-Temperature
A487 Standard Specification for Steel Castings Suitable for Pressure Service
A351 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts
A352 Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service
A703 Standard specification for steel casting,General requirements,for pressure-containing parts
what is a radiant tube
A radiation tube is a tube extending straight from the center in all directions.It refers to a non-central pipe (or dry pipe) which conveys the material action of the dry pipe to a designated or non-designated address.Radiation tube is widely used in heating furnace and is the main heating element of heating furnace.
Application of alloy
The radiant tubes are working at high temperature environment on average: 800-120 C, most of them are used for indirect heating to furnace like CAL (continuous annealing line) CGL (continuous galvanizing line).
Process of alloy
Centrifugal/spun casting method for tube sections, investment casting or sand casting for the bends, hangers, welding and machining
Material of alloy
High Nickel and high Chrome heat resistant alloys, Cobalt base alloys, like.
HU, HT, HK, HP, HW, 24/24NbTiZr, SCH21, ZG40Cr25Ni20, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4410, 1.4059, 1.4841, 1.4845, 1.4852, 2.4879 or as per customer's requirements
Standard of alloy
ANSI, ASTM, ASME, DIN, GB etc.
Model NO.: Special-Metal RT
Casting Metal: High Ni-Cr Alloy
Casting Form Material: HU, HT, HK, HP, HW, 24/24NbTiZr, SCH21, ZG40Cr25Ni20, 50Cr/50Ni (2.4813), 1.4865, 1.4849, 1.4848, 1.4410, 1.4059, 1.4841, 1.4845, 1.4852, 2.4879 or as per customer's requirements
Casting Form Usage Count: Permanent
Export Markets: North America, South America, Eastern Europe, Africa, Oceania, Mid East, Western Europe
What is a steel sleeve?
Steel sleeve is also called a steel joint. A connector for connecting reinforcement and having an internal thread corresponding to the thread of the screw head. The construction process is simple. The end of the steel bar is processed into straight thread by rolling process, and the two steel bars are connected with each other by the corresponding connecting sleeve.
application of steel sleeve
It is widely used in the coiling of foil, strip, and plate in the industries of aluminum foil, aluminum plate, and stainless steel foil strip, etc.
As the sleeve rotates at high speed during working, the requirement for concentricity and dynamic balance of the sleeve is strict, which has a great influence on the product qualification rate and subsequent reprocessing. Therefore, centrifugal pouring is the best production process for the steel sleeve.
Sometimes products need heat treatment, which puts higher requirements on steel sleeves. Generally speaking, carbon steels such as ZG45 and ZG55 have lower strength and are not resistant to high-temperature deformation, they need alloy steel sleeves such as ZG35CrNiMo, ZG25Cr2Mo1V and 35CrMo.
Process Of Steel Sleeve
In general the product of steel sleeve for cold rolling mill process is as following:
1.Steel smelt with qualified ingredients.
2.Centrifugal casting.
3. Semifinished products forming.
4.Semi-finished products heat treatment-normalizing.
5.Semifinished products heat treatment-tempering.
6.Semifinished products quenching and machining.
7. Finishing internal side.
8. Finishing outside surface benchmarked with an internal hole.
9.Products inspection.
10. Strike steel sleeve for cold rolling mill trademark.
11. Certificate issued.
12.Packaging.
Quenching process: Pit quenched with water quenching and oil cooling.
We use the advanced process of smelting and casting dedicated to ensure the steel sleeve chemical composition is reliable, accurate, and has the same properties. Centrifugal casting is dedicated to ensuring internal and external surfaces of the sleeve have no defects such as crack, slag, blowhole, blister, etc. The heat treatment process will make sure the mechanical performance of the sleeve. With the special machining tool and rational process, the sleeves have high performance of concentricity, cylindrical, symmetry, and balance.
For Common specifications pls view our website
Hollow Section steel Tube is the general name for the steel pipe other than thecircular steel pipe. Such as square, rectangle, oval,elliptical, cone, trapezoidal, spiral, etc. Different steel pipe can more adapt to the particularity of use conditions, save metal and improve the labor productivity of parts manufacturing. It is widely used in aviation, automobile, shipbuilding, mining machinery, agricultural machinery, construction, light textile and boiler manufacturing. The methods of producing different pipes are cold pulling, electric welding, extrusion and hot rolling, etc. Compared with the round tube, the different tubes generally have a larger moment of inertia and cross section modulus, and have a large bending resistance and torsion resistance, which can greatly reduce the structural weight and save steel.
We deals in the following products of India, China, Taiwan and Korea Origin:-
Galvanized Steel (Galvanized Steel Tapes, Galvanized Steel Wires, Galvanized Steel Strips, Galvanized Steel Coils, Galvanized tubes etc)
