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| Brand Name: | TORICH |
| Model Number: | ASTM B444 |
| MOQ: | 1 Ton |
| Price: | Negotiable |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 60000 Ton/Tons per Year |
ASTM B444 covers the specification for seamless and welded nickel-chromium-molybdenum-columbium alloy steel tubes, specifically designed for high-performance applications like desalination. The alloys in this specification, including UNS N06625 (Inconel 625), UNS N06852, and UNS N06219, are renowned for their exceptional resistance to corrosion and high-temperature strength.
The chemical composition of these alloys is critical to their performance. Below is a table detailing the typical composition:
| Element | UNS N06625 (Inconel 625) | UNS N06852 | UNS N06219 |
|---|---|---|---|
| Nickel (Ni) | 58.0 min | 55.0 min | 50.0 min |
| Chromium (Cr) | 20.0 - 23.0 | 20.0 - 23.0 | 20.0 - 23.0 |
| Molybdenum (Mo) | 8.0 - 10.0 | 8.0 - 10.0 | 8.0 - 10.0 |
| Columbium (Nb) | 3.15 - 4.15 | 3.15 - 4.15 | 3.15 - 4.15 |
| Iron (Fe) | 5.0 max | 5.0 max | 5.0 max |
| Others | C, Mn, Si, P, S | C, Mn, Si | C, Mn, Si |
The mechanical properties of these alloys are equally important for their application in desalination. The table below outlines these properties:
| Property | UNS N06625 (Inconel 625) | UNS N06852 | UNS N06219 |
|---|---|---|---|
| Tensile Strength (ksi) | 120 min | 110 min | 115 min |
| Yield Strength (ksi) | 60 min | 55 min | 60 min |
| Elongation (%) | 30 min | 30 min | 30 min |
| Hardness (Rockwell) | B94 max | B92 max | B93 max |
The steel grades covered under ASTM B444 include:
These alloy steel tubes are primarily used in:
While ASTM B444 alloys are highly effective, alternative grades may be considered based on specific requirements:
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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