Yuhong Holding Group Co.,LTD
 |
| Place of Origin: | China |
| Brand Name: | YUHONG |
| Certification: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Model Number: | INCOLOY800, INCOLOY 800H , INCOLOY 800HT, INCOLOY 825, ALLOY 8926 |
| Minimum Order Quantity: | 100KGS |
|---|---|
| Price: | negotiable |
| Packaging Details: | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Delivery Time: | Depends on quantity |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 1500 tons per month |
| Material Grade: | Alloy 800, Alloy 800H, Alloy 800HT, Alloy 825, Alloy 926 | Standard: | ASTM B407 , B163 , ASME SB407, ASME SB163 |
|---|---|---|---|
| NDT: | ET, HT, UT, PT | OD: | 3MM TO 1200MM |
| WT: | 0.3MM TO 100MM | Application: | Petrochemical , Boiler , Heat Exchanger , Oil Refining, Tube Bundle |
| High Light: | Boiler Alloy 800 Nickel Alloy Tube,Boiler 800 Nickel Alloy Tube,Heat Exchanger 800 Nickel Alloy Tube |
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ASTM B407 Alloy 800, 800H, 800HT, Nickel Alloy Tube, Boiler, Heat Exchanger, Tube bundle Application
ASTM B407 covers the specifications for nickel-chromium-iron alloys, specifically the Alloy 800, 800H, and 800HT. These alloys are often used in high-temperature applications due to their excellent oxidation and carburization resistance. Here’s a brief overview of each:
Alloy 800: This is a nickel-chromium-iron alloy with a composition that generally includes 30-35% chromium and 19-23% nickel. It offers good resistance to oxidation and carburization at high temperatures and is often used in heat exchangers, furnace components, and other high-temperature environments.
Alloy 800H: This is a modified version of Alloy 800 with higher creep-rupture strength. It contains the same basic elements but with a tighter control on carbon content and additional elements like titanium and aluminum to enhance its high-temperature properties. Alloy 800H is often used in applications where higher strength is required, such as in steam generator tubing and high-temperature furnace components.
Alloy 800HT: This variant of Alloy 800H is designed for even higher temperature service. It has similar composition to Alloy 800H but is specifically used in applications that require even greater resistance to thermal aging. It’s suitable for extreme high-temperature applications like gas turbines and industrial furnaces.
Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of copper, molybdenum and titanium. The alloy's chemical composition is designed to provide exceptional resistance to many corrosive environments. The nickel content is sufficient for resistance to chloride-ion stress corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing environments such as those containing sulfuric and phosphoric acids. The molybdenum also aids resistance to pitting and crevice corrosion. The alloy's chromium content confers resistance to a variety of oxidizing substances such as nitrates, nitric acid and oxidizing salts. The titanium addition serves, with an appropriate heat treatment, to stabilize the alloy against sensitization to intergranular corrosion. The resistance of Incoloy 825 to general and localized corrosion under diverse conditions gives the alloy broad usefulness. Applications include chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing and handling of radioactive wastes.The outstanding property of Incoloy 825 is its corrosion resistance. In reducing & oxidising conditions, Incoloy 825 resists general corrosion, pitting & crevice corrosion, intergranular corrosion and stress corrosion cracking. It is particularly useful in sulphuric & phosphoric acids, sulphur containing flue gases, sour gas and oil wells and sea water.
Chemical Composition of Incoloy Alloy 825
Table 1. Chemical composition of Incoloy Alloy 825 (ASTM B163 Heat exchanger tube)
Element |
% |
Element |
% |
|
Nickel |
38.0--46.0 |
Carbon |
0.05 max |
|
Chromium |
19.5--23.5 |
Manganese |
1.0 max |
|
Molybdenum |
2.5--3.5 |
Sulfur |
0.03 max |
|
Copper |
1.5 --3.0 |
Silicon |
0.5 max |
|
Titanium |
0.6--1.2 |
Aluminium |
0.2 max |
|
Iron |
22.0 min (~33%) |
|
|
Tensile Properties of Incoloy Alloy 825
Table 2. Typical room temperature tensile properties (not for design. Consult the relevant material or product specification for design values)
Form |
|
Condition |
0.2% Proof Stress |
|
Tensile Strength |
|
Elong |
|
Tube |
|
Annealed |
440 |
|
770 |
|
35 |
|
Tube |
|
Cold drawn |
880 |
|
1000 |
|
15 |
Corrosion Resistance
The outstanding property of Incoloy 825 is its corrosion resistance. In reducing & oxidising conditions, Incoloy 825 resists general corrosion, pitting & crevice corrosion, intergranular corrosion and stress corrosion cracking. It is particularly useful in sulphuric & phosphoric acids, sulphur containing flue gases, sour gas and oil wells and sea water.
Incoloy 825 can be readily hot or cold worked. Hot working should be in the range 870 1180C, finishing at 870 980C. For maximum corrosion resistance hot worked parts should be stabilise annealed before use. The alloy is easier to cold form than stainless steels.
Heat Treatment
Incoloy 825 is stabilise annealed at 940C. The softest structure is obtained at 980C. Sections heavier than sheet, strip and wire should be quenched to avoid sensitisation.
Application
Incoloy 825 is the material of choice in a wide variety of applications up to a temperature of approximately 550C (1020F),
Contact Person: Sunny Zhou
Tel: +8618067523450
Fax: 0086-574-88017980
