H10665

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Molybdenum-nickel alloy is an alloy composed of metal molybdenum as the matrix element and metal element nickel, which is one of many metal alloys, which is mainly used under the condition of reducing medium corrosion, and is the best alloy for hydrochloric acid corrosion, but in the presence of oxygen and oxidant, the corrosion resistance will be significantly reduced.

H10665Chemical composition:

  Ni Mo C Si Mn Cr Fe
Min Bal 26
Max 30 0.02 0.1 1 1 2

H10665Physical properties:

Density Resistivity/μΩ ·m Coefficient of expansion

/10-6m·(m·K)-1

Thermal conductivity

/W·(m·K)-1

Specific heat capacity

/10-6m²/s

Elastic modulus/MPa
20℃ 0℃ 100℃ 300℃ 20~ 93℃ 20~ 204℃ 20~ 316℃ 0℃ 100℃ 300℃ 0℃ 100℃ 300℃ room temperature 316℃ 538℃
9.217 1.37 1.38 1.39 10.3 10.8 11.2 11.1 12.2 14.6 3.2 3.4 3.8 217000 202000 189000

H10665Mechanical properties:

Variety Check the status Temperature/℃ ob/MPa σp0.2/MPa δ/% Hardness
Medium and thick plates are 9.1~51mm  

1066℃Quench after heating

room temperature

204

316

427

902

871

840

823

407

361

336

319

61

60

60

61

94HB

 

 

 

The middle plate is 6.4mm

After manual TIG welding

Semi-automatic after TIG welding

Manual TIG welding +1066°C Solid solution

Semi-automatic TIG welding +1066°C Solid solution

room temperature

room temperature

room temperature

room temperature

855

821

817

796

一 一 一 一一一一 一一一一
The middle plate is 12.7mm After manual TIG welding room temperature 897      

H10665Alloy properties:

The main differences between this alloy and HuaNickel H10665 alloy are the low carbon and silicon content (C≤ 0.02%, Si ≤0.10%) in the chemical composition, and the iron content from less than 6% to less than 2%. Due to the change of carbon, silicon and iron content, although the matrix structure of 0H10665 alloy is no different from H10665 alloy, the precipitated phase on the alloy matrix or along the grain boundary is very different. The most obvious feature is that the intermetallic phase and carbide precipitation phase of 00Mo28Ni68Fe2 alloy are significantly reduced. The corrosion resistance of 00Mo28Ni68Fe2 alloy (including comprehensive corrosion resistance and intergranular corrosion resistance) is significantly improved.

H10665Uses of alloys:

H10665 alloy can be used to produce plates, pipes (welded pipes), rods, wires, strips and forgings. It is mainly used for pipelines, vessels and their linings, reaction towers and linings, pumps and valves that are resistant to hydrochloric acid, sulfuric acid, phosphoric acid and formic acid. For conditions that require welding, it is better to choose 0H10665 instead of H10665 alloy.

H10665Process performance:

Welding process: 0H10665 alloy has good welding performance, and because the carbon, silicon and iron content in this alloy are low, the intergranular corrosion resistance and knife edge corrosion resistance after welding are better than 0H10665. When the amount of iron and chromium in the alloy is appropriately controlled, the plasticity, toughness, corrosion resistance and weldability of 0H10665 alloy will be further improved. As a result, HuaNickel 0H10665 does not need to be heated. This alloy is more suitable than 0H10665 alloy for the manufacture of welding equipment and components.

Heat treatment: This alloy needs to be treated with 1066°CSolid solution except for special uses. Except for those whose Fe+ Cr content in the alloy is controlled, it is generally not allowed to stay and use it for a long time between 538~816 °C.

Relevant standards:

ASTMB333 /SB333、 ASTMB622/ SB622、 ASTMB616、 ASTMB626 、 ASTMSB619、 ASTMSB626

B335 /SB335、 B564/ SB564

Detail datasheet