Active Member
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[China]
Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.
Contact name:Vicky
Zhengzhou Huitong Pipeline Equipment Co.,Ltd. |
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75#-2500# 1/2"-24" forged Hastelloy B2 Nickel alloy flange ASME B16.5
1. Hastelloy B2 material introduction
· Round Bar
· Plate
· Pipe/Tube
· Fittings
· Great resistance to stress corrosion cracking and pitting
· Significant resistance to reducing conditions like hydrogen chloride, sulfuric, acetic and phosphoric acids
· Resistance to hydrochloric acid at all concentrations and temperatures
| Ni | Mo | Fe | C | Co | Cr | Mn | Si | P | S |
| Balance | 26.0-30.0 | 2.0 max | .02 max | 1.0 max | 1.0 max | 1.0 max | .10 max | .040 max | .030 max |
· Chemical processes
· Vacuum furnaces
· Mechanical components in reducing environments
ASTM Specifications
| Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting |
| B622 | B619 | B622 | B626 | B333 | B335 | B564 | B366 |
Annealed Material
| Product | Tensile Min. (ksi) | .2% Yield Min. (ksi) | Elongation Min. |
| Rod & Bar | 110 | 51 | 40 |
| Sheet/Plate | 110 | 51 | 40 |
| Welded Pipe & Tube | 110 | 51 | 40 |
| Seamless Pipe & Tube | 110 | 45 | 40 |
2. Hastelloy B2 nickel alloy flange
| Specifications | : | ASTM / ASME SB 564 |
| Dimensions | : | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings. |
| Size | : | ½" to 60" |
| Standards | : | ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc. |
| Grade | : | Hastelloy B2 (UNS No. N10665), Hastelloy B3 (UNS No. N10675), |
| Class | : | 150#, 300#, B2#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
3. The difference between Hastelloy B-2&B-3
| Hastelloy B-2 (UNS N10665) | Hastelloy B-3 (UNS N10675) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary | A corrosion-resistant solid-solution nickel-molybdenum alloy, Hastelloy B-2 exhibits excellent corrosion resistance in aggressive reducing media such as hydrochloric acid in a wide range of temperatures and concentrations, as well as in medium-concentrated sulphuric acid even with limited chloride contamination. Can also be used in acetic and phosphoric acids, and to a wide range of organic acids. The alloy has good resistance to chloride-induced stress corrosion cracking (SCC). | Hastelloy B-3 alloy is an additional member of the nickel-molybdenum family of alloys with excellent resistance to hydrochloric acid at all concentrations and temperatures. It also withstands sulfuric, acetic, formic and phosphoric acids, and other nonoxidizing media. B-3 alloy has a special chemistry designed to achieve a level of thermal stability greatly superior to that of its predecessors, e.g. HASTELLOY B-2 alloy. B-3 alloy has excellent resistance to pitting corrosion, to stress-corrosion cracking and to knife-line and heat-affected zone attack. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Standard Product Forms | Pipe, tube, sheet, plate, round bar ,flanges, valve, and forging. | Pipe, tube, sheet, plate, round bar , flanges, valve, and forging. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Limiting Chemical Composition, % |
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| Physical Constants |
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| Corrosion Resistance | The extremely low carbon and silicon content of Hastelloy B-2 reduces precipitation of carbides and other phases in the heat-affected zone of welds and ensures adequate corrosion resistance even in the welded condition. Hastelloy B-2 exhibits excellent corrosion resistance in aggressive reducing media such as hydrochloric acid in a wide range of temperatures and concentrations, as well as in medium-concentrated sulphuric acid even with limited chloride contamination. It can also be used in acetic and phosphoric acids. Optimum corrosion resistance can be obtained only if the material is in the correct metallurgical condition and exhibits a clean structure. |
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| Applications | Hastelloy B-2 is used in a wide range of applications in the chemical process industry, especially for processes involving sulphuric, hydrochloric, phosphoric and acetic acid. B-2 is not recommended for use in the presence of ferric or cupric salts as these salts may cause rapid corrosion failure. Ferric or cupric salts may develop when hydrochloric acid comes in contact with iron or copper. | Hastelloy B-3 alloy is suitable for use in all applications previously requiring the use of Hastelloy B-2 alloy. Like B-2 alloy, B-3 is not recommended for use in the presence of ferric or cupric salts as these salts may cause rapid corrosion failure. Ferric or cupric salts may develop when hydrochloric acid comes in contact with iron or copper. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
4. Hastelloy B2 all types of flanges:
