Shanghai Haosteel Co., Limited |
Verified Suppliers
|
|
Hastelloy B2 N10665 2.4617 Alloy steel bar pipe plate wire coil Hastelloy C276 C C2000 C22 C4 B B3 X alloy
Hastelloy is a nickel-based corrosion-resistant alloy, which is mainly divided into nickel-chromium alloy and nickel-chromium-molybdenum alloy. Hastelloy has good corrosion resistance and thermal stability, and is used in aviation and chemical fields. Hastelloy is the general name for the commercial grades of nickel-based corrosion-resistant alloys produced by Hastelloy International.
Hastelloy B2 Hastelloy grades and standards:
Hastelloy B-2 Hastelloy US brand: UNS N10665 German brand: W.Nr.2.4617
American Society for Testing and Materials Hastelloy B-2 American Aerospace Materials Technical Specification, American Society of Mechanical Engineers ASME SB335 ASME SB335 ASME SB333 ASTM SB622 ASTM SB619 ASTM SB626
Hastelloy B2 (N10665, 2.4617) Hastelloy Overview:
Hastelloy B2 (N10665, 2.4617) Hastelloy is a corrosion-resistant,
solid solution nickel-molybdenum alloy.
Hastelloy B2 (N10665, 2.4617) Hastelloy has the following
properties:
(1) Control the iron content and chromium element at the lowest
level to prevent the formation of β-phase Ni4Mo.
(2) Excellent corrosion resistance to a reducing environment.
(3) Excellent resistance to moderate concentrations of sulfuric
acid and many non-oxidizing acids.
(4), very good resistance to chloride ion reduction stress
corrosion cracking (SCC).
(5) Excellent resistance to various organic acid corrosion
Hastelloy B2 (N10665, 2.4617) Hastelloy physical properties:
(1) Density: ρ=9.2g/cm3
(2) Melting temperature range: 1330~1380°C
Hastelloy B2 (N10665, 2.4617) alloy conditional stress values:
In applications where the amount of deformation is allowed to be
slightly greater, a larger conditional stress value of up to 90%
proof strength value at the corresponding temperature can be
selected. These stresses can cause dimensional changes due to
permanent strains and are therefore not recommended for flanges and
seal connections.
Metallographic structure of Hastelloy B2 (N10665, 2.4617) alloy:
Hastelloy B-2 is a face-centered cubic lattice structure. By
controlling the iron and chromium content to a minimum, the
processing fragility is reduced, preventing the precipitation of
the Ni4Mo phase at 700-870 °C.
Hastelloy B2 (N10665, 2.4617) alloy corrosion resistance:
Nickel-molybdenum alloy B-2 has extremely low carbon and silicon
content, which reduces the precipitation of carbon and other
impurity phases in the heat affected zone of the weld, so the weld
seam also has sufficient corrosion resistance. Alloy B-2 has good
corrosion resistance in reducing media, such as hydrochloric acid
solutions of various temperatures and concentrations. It also has
good corrosion resistance in medium concentration sulfuric acid
solution (or contains a certain amount of chloride ions). It can
also be used in acetic acid and phosphoric acid environments. Alloy
materials have the best corrosion resistance only in the proper
metallographic state and pure crystal structure. Compared with
Hastelloy B-2, the newly developed Hastelloy B-4 has improved
resistance to stress corrosion cracking and improved
anti-sensitization in addition to the same resistance to general
corrosion and intergranular corrosion.
Complete specifications, stock in stock
Strip, sheet (thick plate, medium plate, sheet, steel plate), bar (black bar, light bar, grinding bar, round bar, square bar, steel bar), pipe (capillary, seamless pipe, steel pipe), Forgings (flanges, elbows, bolts, nuts, tees), welding consumables (welding rods, welding wire, welded pipes), wire and other materials.
Chemical Composition Of Hastelloy B2
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Ni≥ | Mo≥ | Cu≤ |
0.02 | 0.10 | 1.00 | 0.04 | 0.03 | 1.00 | Re | 26.0-30.0 | - |
N≤ | Al≤ | Ti≤ | Fe≤ | Co≤ | V≤ | Nb≤ | Nb≤ | |
- | - | - | 2.0 | 1.00 | - | - | - |
Hastelloy B2 (N10665, 2.4617) Hastelloy application range:
Hastelloy B-2 has a wide range of applications in the chemical,
petrochemical, energy manufacturing and pollution control
industries, especially in the sulfuric acid, hydrochloric acid,
phosphoric acid, acetic acid and other industries. If it is used in
a special field, please consult the material supplier.
Hastelloy B2 (N10665, 2.4617) Hastelloy processing and heat
treatment:
1. Hastelloy B2 (N10665, 2.4617) Hastelloy heating:
(1) It is very important to keep the workpiece clean and free of
contamination before and during heat treatment.
(2), can not contact sulfur, phosphorus, lead and other low melting
point metals during heating, otherwise it will damage the
performance of the alloy and make Hastelloy B-2 brittle. Care
should be taken to remove stains such as marking paints,
temperature indicating paints, colored crayons, chalk, lubricating
oils, various liquids and oils, fuels, etc.
(3) The lower the sulfur content in the fuel, the better, the total
sulfur content in natural gas and liquefied petroleum gas should be
less than 0.1%, the sulfur content in city gas should not exceed
0.25g/m3 at most, and the sulfur content in fuel oil. Should be
less than 0.5%.
(4) The furnace gas must be clean and micro-reducing is
appropriate. The furnace gas should be prevented from fluctuating
between oxidizing and reducing properties, and the heating flame
cannot be directly burned to the workpiece.
(5), should be heated as fast as possible to the required
temperature.
2, Hastelloy B2 (N10665, 2.4617) Hastelloy thermal processing:
(1) The hot working temperature range of Hastelloy B-2 is 1160 ° C
~ 900 ° C, and the cooling method is water quenching.
(2) In order to ensure the best anti-corrosion performance,
annealing should be carried out after hot working.
(3) When hot working, the workpiece should be directly added to the
heat treatment furnace that has been heated.
3, Hastelloy B2 (N10665, 2.4617) Hastelloy cold processing:
(1) Cold working needs to be carried out in a solution annealed
state.
(2), Hastelloy B-2 has a higher work hardening rate than austenitic
stainless steel, so it is necessary to adjust the processing
equipment accordingly. There should be intermediate annealing
during cold working.
(3) If the cold rolling deformation is greater than 15%, the
workpiece needs to be solution treated before use.
4, Hastelloy B2 (N10665, 2.4617) Hastelloy heat treatment:
(1) The solution treatment temperature range of Hastelloy B-2 is
1060 ° C to 1080 ° C.
(2) For materials with a thickness greater than 1.5 mm, it is
recommended to use water cooling or rapid air cooling to ensure the
best corrosion resistance.
(3) In all heat treatment processes, care should be taken to
observe the above-mentioned items that must be kept clean.
5. Hastelloy B2 (N10665, 2.4617) Hastelloy Deoxidation:
(1) The surface oxide and oxidized color of Hastelloy B-2 and the
adhesion of the weld slag around the weld are stronger than those
of stainless steel. It is recommended to use a fine-grained
abrasive belt or a fine-grained grinding wheel for grinding.
(2) Before pickling, use sandblasting or careful grinding to break
the oxide.
(3), using a HNO3/HF mixed acid for appropriate time and
temperature pickling. Due to the sensitivity of the alloy to the
oxidizing medium, the weight of the alloy may be lost and is
accompanied by the formation of more nitrogen-containing gas.
6, Hastelloy B2 (N10665, 2.4617) Hastelloy machining:
Hastelloy B-2 should be machined after annealing. Due to the high
work hardening rate of the material, it is better to use a lower
cutting speed and heavy feed than the processing of low alloy
standard austenitic stainless steel to cut into cold hardening.
Below the surface.
Hastelloy B2 (N10665, 2.4617) Hastelloy Welding:
1. Hastelloy B-2 alloy can be tungsten electrode shielded gas
welding (GTAW/TIG) or gas shielded arc welding (SMAW/MMA) under
certain circumstances. The material to be welded shall be annealed
to remove oxide scale, oil stains and various marking marks. The
area of the base material on both sides of the weld shall be
polished to a bright metal. Hastelloy B-2 has a lower thermal
conductivity than steel. When using a single V-shaped solder joint,
the angle should be 70° with low heat input and the interlayer
temperature does not exceed 120 °C. The oxidized color can be
removed when the weld is still hot. In some applications, post-weld
heat treatment is required to eliminate residual stress and improve
stress corrosion cracking resistance. For best corrosion
resistance, argon arc welding, the tungsten electrode inert gas
shielded welding GTAW, is recommended.
2, Hastelloy B-2 alloy welding filler metal: commonly used filler
metal: welding wire: ERNiMo-7, welding rod: ENiMo-7. Only the use
of such a welding electrode can avoid the precipitation of carbon
or silicon or minimize the precipitation.
Specifications
Product Name | alloy bar & steel bar |
Production Process | Cold Drawn,Cold Rolled,Hot Rolled,Bright Anneal etc |
Size | 5.5-800mm(Hot rolled), 2-50mm(Cold drawn),110-500mm(Forged) |
Standard | ASTM EN DIN GB ISO JIS |
Tolerance | +/-0.05 ~+/0.02 |
Surface
| Pickling,Bright; No.1,2B,No.4,BA,8K
Satin,Brush,Hairline,Mirror,Polished 180 grits,320 grits,400 grits,600 grits,800 grits polished |
Application | Constructions feilds and ship building industries Petroleum,Chemical industries,War and electiciy industries. Food processing and medical industries. Boiler heat cxchangers,Machinery and hardware feilds. |
Materials | Titanium alloy:TI-6AL-4V,TI-5AL-2.5SN,TA1,TA2,TA3,TA4,TA0,TC4 200series:201 202 |
The nickel-molybdenum alloy Hastelloy B-2 has a very low carbon and silicon content, which reduces the precipitation of carbon and other impurity phases in the heat affected zone of the weld, so the weld seam also has sufficient corrosion resistance. Hastelloy B-2 has excellent corrosion resistance in reducing media, such as hydrochloric acid solutions of various temperatures and concentrations. It also has good corrosion resistance in medium concentration sulfuric acid solution (or contains a certain amount of chloride ions). It can also be used in acetic acid and phosphoric acid environments. Alloy materials have the best corrosion resistance only in the proper metallographic state and pure crystal structure. It is widely used in the fields of chemistry, petrochemical, energy production and pollution control, especially in industries such as sulfuric acid, hydrochloric acid, phosphoric acid and acetic acid.
Hastelloy B2 (N10665, 2.4617) specifications and supply status:
1. Variety classification: Shanghai Baoyu special alloy can produce
various specifications of Hastelloy B2 seamless pipe, Hastelloy B2
steel plate, Hastelloy B2 round steel, Hastelloy B2 forging,
Hastelloy B2 flange, Hastelloy B2 ring, Hastelloy B2 welded pipe,
Hastelloy B2 steel strip, Hastelloy B2 wire and matching welding
consumables.
2, delivery status: seamless pipe: solid solution + acid white,
length can be fixed; sheet: solid solution, pickling, trimming;
welded pipe: solid solution acid white + RT% flaw detection,
forgings: annealing + car light; The bar is in the state of
forging, surface polishing or car light; the strip is cold-rolled,
solid solution soft, and descaled; the wire is solid-dissolved and
acid-washed, or straight, solid solution Light state delivery.