Hastelloy B2 polished bar
Hastelloy B2 polished bar is a nickel-molybdenum alloy (Ni-Mo series). It is designed to resist corrosion in reducing media, such as hydrochloric acid and sulfuric acid. Its typical composition is about 65% nickel and 28% molybdenum. It also contains a small amount of iron and chromium. It is made into polished bars by cold rolling or hot rolling. Hastelloy B2 polished bar has a smooth surface finish and high dimensional accuracy. It is suitable for precision parts that have strict surface requirements.
Hastelloy B2 polished bar is mainly used in strongly reducing acid environments. These include chemical (reactors, piping), pharmaceutical (acid cleaning equipment), and environmental (waste acid treatment) fields. It has excellent resistance to hydrochloric acid and sulfuric acid corrosion and high-temperature stability. It is suitable for precision parts like pump rods and valve shafts. However, it should avoid oxidative media.
Features of Hastelloy B2 polished bar
Excellent corrosion resistance.
Hastelloy B2 polished bar performs well in reducing acids like hydrochloric acid, sulfuric acid, and phosphoric acid. It can stay stable even in high-temperature conditions.
Resistance to localized corrosion.
Hastelloy B2 polished bar has strong resistance to localized corrosion such as pitting and stress corrosion cracking.
High-temperature performance.
In the moderate temperature range below 400°C, the mechanical properties and corrosion resistance of Hastelloy B2 polished bar hardly decrease.
Fabrication and surface treatment.
The polished surface of Hastelloy B2 polished bar reduces pores and defects. It lowers the risk of corrosion and also improves appearance.
Hastelloy B2 polished bar can be shaped by welding and machining. But it is necessary to avoid the embrittlement tendency during heat treatment, such as the precipitation of sigma phase.
Applications of Hastelloy B2 polished bar
Chemical equipment: Hastelloy B2 polished bar is used in reactors, heat exchangers, and piping systems. It is especially suitable for highly corrosive environments involving hydrochloric acid and sulfuric acid.
Pharmaceutical industry: Hastelloy B2 polished bar is used to make acid cleaning equipment and solvent conveying parts in drug production.
Environmental engineering: Hastelloy B2 polished bar is used in waste acid treatment devices and flue gas desulfurization systems.
Precision parts: Hastelloy B2 polished bar is often used to make corrosion-resistant parts with high surface finish, such as valve shafts and pump rods.
|
Parameter Category |
Specifications/Options |
Technical Notes |
|
Diameter |
Standard: 5-200mm; Custom: 0.5-300mm |
Precision machining available |
|
Length |
Fixed: 1-6m; Random: ≤12m |
Cutting/chamfering services offered |
|
Tolerance |
Precision: ±0.02mm; Regular: ±0.1mm |
Special requirements should be specified |
|
Surface Finish |
Mirror polish: Ra≤0.4μm |
Other grades available (Ra0.8μm, 1.6μm) |
|
Standards |
ASTM B335/AMS 5754/DIN 17752 |
EN10204-3.1 material certificates available |
|
Chemical Composition |
Ni≥65%, Mo26-30%, Fe≤2.0% |
C≤0.02% for intergranular corrosion resistance |
|
Tensile Strength |
≥760MPa |
Typical range: 800-900MPa |
|
Yield Strength |
≥350MPa |
Elongation ≥40% (50mm gauge) |
|
Hardness |
180-220HV |
Solution annealed condition |
|
Density |
9.22g/cm³ |
Similar to Hastelloy B3 |
|
Melting Point |
1330-1380℃ |
Excellent high-temperature stability |
|
Thermal Conductivity (20℃) |
10.1W/(m·K) |
Lower than stainless steel - consider heat dissipation |
|
Heat Treatment |
Solution annealed (1050-1150℃ water quench) |
Optimizes corrosion resistance |
|
Straightness |
≤1mm/m (can be improved to ≤0.5mm/m) |
Critical for precision applications |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Hastelloy B2 polished bar ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
Hot Tags: hastelloy b2 polished bar, China hastelloy b2 polished bar suppliers, factory, Inconel 625 Pipe, Kovar Seamless Pipe, Nickel Based Alloys
