Monel metal

Japanese: モネルメタル(英語表記)monel metal
Monel metal
A corrosion-resistant alloy containing nickel (Ni62-70%), copper (Cu30-35%), and other elements such as iron, aluminum, and manganese. It was named after A. Monel, who reduced ore containing Ni:Cu = 7:3 at the International Nickel Company in Canada (1905), and since then, various countries have produced the same or improved alloys. Regular Monel (Monel400) is a strong alloy with a tensile strength of 588 MPa and a Brinell hardness of H B 150, but its distinctive feature is its resistance to corrosion in seawater, acids, and alkalis, and it is used mostly as a structural material in the chemical industry. R Monel (Monel R-405, with 0.04% added sulfur) is known as a free-cutting Monel, and has good machinability. K Monel (Monel K-500, with 3% aluminum added) is age-hardened by tempering after quenching, reaching a tensile strength of 120 kg/mm ​​2 and an H B of 300 or more, and is used for non-magnetic aircraft parts and corrosion-resistant machine parts, while S Monel (with 4% silicon and 2% iron added) and Monel with 2% silicon and 1.5% iron added are used for casting, also for wear-resistant and corrosion-resistant parts. JIS standardizes Ni-Cu alloys equivalent to Monel 400 and Monel K-500.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:
ニッケル Ni62~70%,銅 Cu30~35%,ほかに鉄,アルミニウム,マンガンなどを含む耐食合金。もとカナダのインタナショナルニッケル会社で A.モネルが Ni:Cu=7:3の比に含む鉱石を還元して得た (1905) のでその名がついたが,以後各国で同質または改良合金を溶製するようになった。通常のモネル (Monel400) は引張り強さ 588MPa,ブリネル硬さ HB 150の強い合金であるが,特色は海水,酸,アルカリに対する耐食性で,ほとんど化学工業用構造材とされる。Rモネル (Monel R-405,硫黄を 0.04%添加) は快削モネルといわれ,被切削性がよい。Kモネル (Monel K-500,アルミニウム3%添加) は焼入れ後の焼戻しで時効硬化して引張り強さ 120 kg/mm2 ,HB 300以上に達し,航空機用非磁性部品,機械用耐食部品に用い,Sモネル (ケイ素4%,鉄2%添加) およびケイ素2%,鉄 1.5%添加のモネルは鋳造用で,用途はやはり耐摩耗耐食部品である。 JISでは Monel 400と Monel K-500に相当する Ni-Cu合金が規格化されている。

出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報

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