WENZHOU ZHEHENG STEEL INDUSTRY CO;LTD
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Seamless Hastelloy C22 C276 Nickel Alloy Stainless Steel Pipe Fittings Wrought ASTM B622
Why choose us:
| 1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material |
| 2.100% Dimension & Visual Examination |
| 3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test |
| 4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT) |
| 5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor) |
| 6.Straightness Test (optional) |
| 7.Roughness Test (optional) |
| 8.Intergranular Corrosion Test(optional) |
| 9.Impact Test (optional) |
| 10.Grain Size Determinations (optional) |
| NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION. |
What is Hastelloy and what are its main uses?
Hastelloy (HASTELLOY) nickel-based alloy Hastelloy is nickel-molybdenum, nickel-chromium-molybdenum alloy. The early (Ni60-Mo19-Fe20) Hastelloy A solved the problem of hydrochloric acid corrosion resistance in the field of corrosion-resistant alloys. But it can only be used for hydrochloric acid corrosion below 70℃. Hastelloy B (0Ni65Mo28Fe5) and Hastelloy B2 (00Ni70M028) developed by appropriately increasing molybdenum and reducing iron can be used for any concentration of hydrochloric acid at boiling temperature, even in sulfuric acid and hydrofluoric acid. Corrosion resistance.
Hastelloy B2 is superior to Hastelloy B due to its ultra-low carbon content. Hastelloy B3 is an added grade with better thermal stability than B2. It also has excellent resistance to corrosion by hydrochloric acid, sulfuric acid, acetic acid, phosphoric acid and other non-oxidizing environments. Hastelloy A, B, B2 Ni-Mo alloy has good corrosion resistance in hydrochloric acid, but in the medium with oxygen or oxidant, the corrosion resistance is significantly reduced. To overcome the low corrosion resistance of the alloy in reducing and oxidizing composite media, Hastelloy C (Ni60Cr16Mo16W4) was developed. Ni-Mo alloys with a Mo content of 25% to 30% have two sensitization zones. Both 1200 to 1300°C and 600 to 900°C have high molybdenum-containing precipitation phases that precipitate along the grain boundaries, resulting in micro-molybdenum depletion in the grain boundaries. Intergranular corrosion occurs through chemical conversion, reducing carbon, silicon and iron, and adding tungsten, vanadium and niobium can improve the resistance to intergranular corrosion in hydrochloric acid and sulfuric acid. Consult WeChat 13961767712 Hastelloy C still undergoes intergranular corrosion in hydrochloric acid, sulfuric acid and chromic acid after sensitization at 600~1150℃. .
RFQ:
1. Are you a trading company or a manufacturer?
Manufacturer and trading.
2. What are your main products?
All kinds of elbows, tees, caps, flanges, and steel pipes, etc with different stainless steel,nickel alloy materials.
3. Do you provide free samples?
We'd like to provide samples for your confirm, but we don't pay the cost of freight.
4. Why should I choose you?
* Contact us with your detailed inquiry, you will be replied within 6 hours.
* You are promised to obtain the best quality, price, and service.
* Wide excellent experiences with after-sale service.
* Every process will be checked by responsible QC which ensures every product's quality.
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