C7270
2023-05-17 15:51:04
來源:鋼鐵之家
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| 牌號 | C7270 |
| 其他名稱 | |
| 對應標準 | 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 |
| 標簽 | 銅鎳錫合金 |
| 說明 | 具有良好的耐熱性和耐腐蝕性,時效硬化前加工性能優良,時效硬化后應力松弛特性、疲勞耐力和電導率提高。適用于高質量彈簧。除銑削硬化材料外,應在成形后進行時效硬化處理。適用于電子、通訊、信息、電氣或測量儀器、儀器的端子、連接器、插座、開關、繼電器、電刷等的彈簧。 牌號后綴字母:P=板材;R=帶材 |
| 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 |
| 條件 | 標記 |
熱處理或狀態 |
抗拉強度 σb Mpa |
屈服點 σs Mpa |
斷后伸長率或延伸率 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:最小測試負載應為1.961N
? t=厚度,單位mm
? t=厚度,單位mm
注:
①OM:冷加工和時效處理以獲得最低的抗拉強度。(cold-worked and age-treated to gain the minimum tensile strength.)
②1/4HM:經冷加工和時效處理后,其抗拉強度在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:經過冷加工和時效處理,可獲得1/4HM和HM之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between tem- per grades 1/4HM and HM.)
④HM:經冷加工和時效處理,獲得1/2HM和EHM之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between temper grades 1/2HM and EHM.)
⑤EHM:經冷加工和時效處理后,其抗拉強度達到HM級和XHM級之間。(cold-worked and age-treated to gain the tensile strength between tem- per grades HM and XHM.)
⑥XHM:經過冷加工和時效處理,可獲得介于EHM和XHMS之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between tem- per grades EHM and XHMS.)
⑦XHMS:經過冷加工和時效處理,可獲得介于EHM和XHMS之間的抗拉強度。(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效處理前的機械性能。
⑨第七行至第十二行是時效處理后的機械性能。
①OM:冷加工和時效處理以獲得最低的抗拉強度。(cold-worked and age-treated to gain the minimum tensile strength.)
②1/4HM:經冷加工和時效處理后,其抗拉強度在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:經過冷加工和時效處理,可獲得1/4HM和HM之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between tem- per grades 1/4HM and HM.)
④HM:經冷加工和時效處理,獲得1/2HM和EHM之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between temper grades 1/2HM and EHM.)
⑤EHM:經冷加工和時效處理后,其抗拉強度達到HM級和XHM級之間。(cold-worked and age-treated to gain the tensile strength between tem- per grades HM and XHM.)
⑥XHM:經過冷加工和時效處理,可獲得介于EHM和XHMS之間的抗拉強度。(cold-worked and age-treated to gain the tensile strength between tem- per grades EHM and XHMS.)
⑦XHMS:經過冷加工和時效處理,可獲得介于EHM和XHMS之間的抗拉強度。(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效處理前的機械性能。
⑨第七行至第十二行是時效處理后的機械性能。
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