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C7270簡(jiǎn)介

牌號(hào) C7270
其他名稱
對(duì)應(yīng)標(biāo)準(zhǔn) JIS H 3130-2018
用于彈簧的銅鈹合金、銅鈦合金、磷青銅、銅鎳錫合金和鎳銀片材、板材和帶材
Copper beryllium alloy, copper titanium alloy, phosphor brozne, copper-nickel-tin alloy and nickel silver sheets, plates and strips for springs
歸類 銅及銅合金
性能 彈性 耐腐蝕
標(biāo)簽 銅鎳錫合金
說明 具有良好的耐熱性和耐腐蝕性,時(shí)效硬化前加工性能優(yōu)良,時(shí)效硬化后應(yīng)力松弛特性、疲勞耐力和電導(dǎo)率提高。適用于高質(zhì)量彈簧。除銑削硬化材料外,應(yīng)在成形后進(jìn)行時(shí)效硬化處理。適用于電子、通訊、信息、電氣或測(cè)量?jī)x器、儀器的端子、連接器、插座、開關(guān)、繼電器、電刷等的彈簧。
牌號(hào)后綴字母:P=板材;R=帶材
C7270 化學(xué)元素成分含量(%)
成分 Fe Mn Ni Pb Sn 更多
最小值 - - 8.5 - 5.5 Cu:余量
最大值 0.5 0.5 9.5 0.02 6.5
C7270 機(jī)械性能
條件 標(biāo)記
熱處理或狀態(tài)
抗拉強(qiáng)度
σb
Mpa
屈服點(diǎn)
σs
Mpa
斷后伸長(zhǎng)率或延伸率
δ
%
硬度
HBW
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-O,C7270 R-O 退火(O) 410~540 - ≥25 HV
90~160
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-1/4H,C7270 R-1/4H 1/4硬(1/4H) 510~620 - ≥10 145~220
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-1/2H,C7270 R-1/2H 1/2硬(1/2H) 590~695 - ≥4 180~240
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-H,C7270 R-H 硬(H) 685~835 - ≥2 210~270
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-EH,C7270 R-EH 極硬(EH) 735~885 - - 230~290
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-SH,C7270 R-SH 彈簧硬(SH) 825~950 - - 250~310
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-O,C7270 R-O 退火(O) ≥785 ≥510 ≥5 ≥240
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-1/4H,C7270 R-1/4H 1/4硬(1/4H) ≥885 ≥650 ≥2 ≥270
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-1/2H,C7270 R-1/2H 1/2硬(1/2H) ≥930 ≥720 ≥2 ≥285
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-H,C7270 R-H 硬(H) ≥980 ≥790 - ≥300
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-EH,C7270 R-EH 極硬(EH) ≥1030 ≥860 - ≥315
板材(P),帶材(R);0.10≤t≤1.5 C7270 P-SH,C7270 R-SH 彈簧硬(SH) ≥1080 ≥930 - ≥330
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-OM,C7270 R-OM OM 685~785 ≥370 ≥10 ≥200
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-1/4HM,C7270 R-1/4HM 1/4HM 725~835 ≥430 ≥5 ≥210
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-1/2HM,C7270 R-1/2HM 1/2HM 785~930 ≥510 ≥3 ≥230
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-HM,C7270 R-HM HM 835~980 ≥580 ≥3 ≥250
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-EHM,C7270 R-EHM EHM 930~1080 ≥720 ≥3 ≥280
板材(P),帶材(R);0.10≤t≤0.6 C7270 P-XHM,C7270 R-XHM XHM ≥1060 ≥900 ≥3 ≥320
? 維氏硬度:最小測(cè)試負(fù)載應(yīng)為1.961N
? t=厚度,單位mm 注:
①OM:冷加工和時(shí)效處理以獲得最低的抗拉強(qiáng)度。(cold-worked and age-treated to gain the minimum tensile strength.)
②1/4HM:經(jīng)冷加工和時(shí)效處理后,其抗拉強(qiáng)度在OM和1/2HM之間。(cold-worked and age-treated to gain the tensile strength between tem- per grades OM and %HM.)
③1/2HM:經(jīng)過冷加工和時(shí)效處理,可獲得1/4HM和HM之間的抗拉強(qiáng)度。(cold-worked and age-treated to gain the tensile strength between tem- per grades 1/4HM and HM.)
④HM:經(jīng)冷加工和時(shí)效處理,獲得1/2HM和EHM之間的抗拉強(qiáng)度。(cold-worked and age-treated to gain the tensile strength between temper grades 1/2HM and EHM.)
⑤EHM:經(jīng)冷加工和時(shí)效處理后,其抗拉強(qiáng)度達(dá)到HM級(jí)和XHM級(jí)之間。(cold-worked and age-treated to gain the tensile strength between tem- per grades HM and XHM.)
⑥XHM:經(jīng)過冷加工和時(shí)效處理,可獲得介于EHM和XHMS之間的抗拉強(qiáng)度。(cold-worked and age-treated to gain the tensile strength between tem- per grades EHM and XHMS.)
⑦XHMS:經(jīng)過冷加工和時(shí)效處理,可獲得介于EHM和XHMS之間的抗拉強(qiáng)度。(cold-worked and age-treated to gain the tensile strength between tem- per grades EHM and XHMS.)
⑧第一行至第六行是時(shí)效處理前的機(jī)械性能。
⑨第七行至第十二行是時(shí)效處理后的機(jī)械性能。
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