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Short Description:
Hastelloy B3 is a nickel-molybdenum alloy with excellent resistance to pitting, corrosion, and stress-corrosion cracking plus, thermal stability superior to that of alloy B2.
Product Description
This nickel steel alloy has great resistance to knife-line and heat–affected zone attack. Alloy B-3 also withstands sulfuric, acetic, formic and phosphoric acids, and other non-oxidizing media. Furthermore, this nickel alloy has excellent resistance to hydrochloric acid at all concentrations and temperatures. Hastelloy B-3’s distinguishing feature is its ability to maintain excellent ductility during transient exposures to intermediate temperatures. Such exposures are routinely experienced during heat treatments associated with fabrication.
Alloy B-3 has poor corrosion resistance to oxidizing environments, therefore, it is not recommended for use in oxidizing media or in the presence of ferric or cupric salts because they may cause rapid premature corrosion failure. These salts may develop when hydrochloric acid comes in contact with iron and copper. Therefore, if this nickel steel alloy is used in conjunction with iron or copper piping in a system containing hydrochloric acid, the presence of these salts could cause the alloy to fail prematurely.
Hastelloy B3 Characteristic
- Maintains excellent ductility during transient exposures to intermediate temperatures
- Excellent resistance to pitting, corrosion and stress-corrosion cracking
- Excellent resistance to knife-line and heat-affected zone attack
- Excellent resistance to acetic, formic and phosphoric acids and other non-oxidizing media
- Thermal stability superior to alloy B-2
- Resistance to hydrochloric acid at all concentrations and temperatures
Hastelloy B3 Chemical Composition
| % | Ni | Cr | Mo | Fe | W | C | Si | Co | Mn | V | P | S | Ti | Cu | Al | Zr | Nb/Cb | Ta | Ni+Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 65 | 1 | 27 | 1 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 94 |
| Max | – | 3 | 32 | 3 | 3 | 0.01 | 0.1 | 3 | 3 | 0.2 | 0.03 | 0.01 | 0.2 | 0.2 | 0.5 | 0.1 | 0.2 | 0.2 | 98 |
Hastelloy B3 Physical Properties
| Density | Melting range |
|---|---|
| 9.22 g/cm³ | 1370-1418°C |
Hastelloy B3 Alloy minimum mechanical properties in the room temperature
| Ultimate Tensile Strength | Yield Strength (0.2% offset) | Elongation |
|---|---|---|
| 125 Ksi(860 MPa) | 60 Ksi (420 MPa) | 50% |
- Bars & Rods & Foring Ring /Flanges
- Sheet & Plate
- Strip & Coil
- Welding Wire &Spring wire
- Seamless Tube & Welded Pipe
»Round Bar & Square Bar & Hexagon Bar
● Diameter : φ8～φ300mm Length:10mm-6000mm
● Hot forging, Hot Rolling, Cold Drawing
● Bright Surface, Polished Surface, Black Surface
»Tube & Pipe:Seamless Tube& Welded Pipe
● Cold Drawing Seamless Pipe： φ1.0～φ220mm
● Hot Extrusion pipe: φ50～φ250mm
● Others : U Blend Tube and Elbow
»Hot Rolled Plate & Cold Rolled Sheet
● Cold Rolling Sheet Thickness: ≦2.0mm Width:≦1500m
● Hot rolling Plate Thickness: ≧4.0mm Width: ≦2500m
»Strip & Tape Ribbon
● Thickness: ≧ 0.01mm Width: 15mm-300mm
● Cold rolling BA Strip, Hard & Soft Condition
»Straight Length Wire & Spool Wire
● Welding Wire: φ 0.1mm～6.0mm Cut length Rod: φ1.0～φ8.0mm
● Package : 5-25kg/Spool or Box
Hastelloy B3 ApplicationsI
- Acetic acid production, initial phase in presence of iodide catalyst
- Methyl methacrylate production with hot 98 % H2SO4
- Production of herbicides, insecticides, ethylene glycol, ethyl benzene