ダウンホールツール用のニッケル合金ワイヤ合金200/201 BA/AP表面付き純粋なニッケル

学年: Alloy 200/ N02200, Alloy 201/ N02201, Alloy 625 /N06625 , Alloy 600 /N06600 ,Alloy 601 /N06601 , Alloy 718 /N07718, Alloy C276 /N10276 , Alloy 800 /N08800 , Alloy 825 /N08825 , Alloy 400 /N04400,etc

標準: ASTM B166; ASTM B446; ASTM B670; ASTM B335;ASTM B637; ASTM B574; ASTM B408; ASTM B425 , etc

表面: Bright Annealed/ Annealed Pickled

テクノロジー: Cold Drawing

: Ultrasonic test

検査: 100%

パッキング: Pallet/ Plywooden case/ Wooden Reel

品質保証: ISO & PED

特徴： Nickel 200 is commercially pure wrought nickel. It is highly resistant to various reducing chemicals. It can also be used in oxidizing conditions that cause the formation of a passive oxide film, for instance its unexcelled resistance to caustic alkalis. Nickel 200 is limited to service at temperatures below 315℃, because at higher temperatures it suffers from graphitization which results in severely compromised properties. In that circumstance, Nickel 201 is used instead. It has a high Curie temperature and good magnetostrictive properties. Its thermal and electrical conductivities are higher than nickel alloys.

Nickel 201 is the low-carbon version of Nickel 200. Because of its low carbon content, Nickel 201 is not subject to embrittlement by intergranularly precipitated carbon or graphite when exposed to temperatures of 315 to 760℃ for prolonged time if carbonaceous materials are not in contact with it. Therefore, it is a substitute for Nickel 200 in Applications above 315℃. However it does suffer from intergranular embrittlement by sulfur compounds at temperatures above 315℃. Sodium peroxide can be used to change them to sulfates to counteract their effect.