精品国产乱码久久久久久竹菊影视,日韩东京热,欧美性猛荡久久久久久老妇app,日韩欧美国产成人

全球鋼材百科網
K640簡介

China GJB K640,及該型號鋼材的基本信息、化學元素成分、機械性能、力學性能、熱處理溫度、同等型號參照表等

K640

China GJB K640,及該型號鋼材的基本信息、化學元素成分、機械性能、力學性能、熱處理溫度、同等型號參照表等

基本信息:
分類 種類 型號 標準 國家 應用
Steel Grades - K640 GJB China 鑄造高溫合金和鑄造金屬間化合物高溫材料母合金規(guī)范 第1部分普通精密鑄件用鑄造高溫合金母合金
化學成分信息(mass fraction)(wt.%) of the K640
元素名稱 最小值 最大值 近似值
C 0.4500 0.5500 -
Cr 24.5000 26.5000 -
Ni 9.5000 11.5000 -
Co - - -
W 7.0000 8.0000 -
Fe - 2.0000 -
B 0.0010 0.0080 -
Si 0.5000 1.0000 -
Mn 0.5000 1.0000 -
P - 0.0400 -
S - 0.0400 -
機械性能信息:
屈服強度Rp0.2(MPa) 抗拉強度Rm(MPa) 沖擊率 伸長率 斷面收縮率 熱處理狀態(tài) 布氏硬度(HBW)
589 (≥) 558 (≥) 41 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
物理性質信息:
溫度 彈性模量 系數 熱導率 比熱容量 比電阻率 密度 加權系數
24 - - 0.44 -
746 534 - 24.3 111 -
439 - 11 13.2 442 432
熱處理信息:
Heat treated : 1712°C - 1486°C
對照表(同等等級)信息:
型號 標準 國家 應用
Y1Cr18Ni9 Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut
1Cr18Ni9 High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
1Cr18Mn10Ni5Mo3N Of urea with good corrosion resistance, can produce urea corrosion of the equipment.
1Cr17Ni7 High strength after cold forming. Used in railway vehicle, conveyor belt, bolt and nut, etc
Y1Cr18Ni9Se Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
0Cr18Ni9 Seamless stainless steel tubes for boiler and heat exchanger
00Cr19Ni10 Carbon content lower than 0Cr19ni9 steel, excellent intergranular corrosion resistance, is used for welding after the class is not processed parts
1Cr17Mn6Ni5N Nickel steel grade, instead of number 1 cr17ni7 and magnetism after cold working, used in railway vehicle, etc
1Cr18Mn8Ni5N Nickel steel, instead of 1cr18ni9
0Cr19Ni9N Based on 0cr19ni9 plus N, strength increase and the plastic is not down. Reduce the thickness of the material. As a structure with strength components
0Cr19Ni10NbN Based on zero cr19ni9 plus N and Nb, with better than 0 cr19ni9 properties and USES
00Cr18Ni10N In 00cr19ni10 adding N, on the basis of the above grades also features, use the same as the 0 cr19ni9n, but better intergranular corrosion resistance
1Cr18Ni12 Compared with 0 cr19ni9, processing low hardenability. Used for spinning processing, special drawing, cold heading
0Cr23Ni13 Corrosion resistance and heat resistance are better than 0cr19ni9
0Cr25Ni20 Oxidation resistance is better than 0cr23ni13. Mostly used as heat resistant steel
0Cr17Ni12Mo2 Seamless stainless steel tubes for boiler and heat exchanger
1Cr18Ni12Mo2Ti Seamless stainless steel tubes for boiler and heat exchanger
0Cr18Ni12Mo2Ti Seamless stainless steel tubes for boiler and heat exchanger
A-29 1025 General use carbon steel rod
1025 These products have been used typically for use in fabrication of fittings, but usage is not limited to such applications. These products are not typically used for deep forming or cupping operations.
標簽: K640、K640鋼材、K640材料
全球鋼材百科網
精品视频在线观看一区二区| 性一乱一交一交一视频| 成人亚洲精品久久久久软件| 国产在线国偷精品免费看| 日本熟妇一区二区三区| 在线观看日本女优| 裸体人体做爰大胆偷拍| 2021国产精品视频| 人成免费在线视频| 亚洲av福利天堂一区二区三| 亚洲av制服丝袜| 欧洲午夜精品久久久久久| 在线观看中文字幕亚洲| jizz高潮| 91精品国产综合久久久密闭| 中文字幕一区二区三区三浦| 东京热加勒比久久| 99久久国产精品免费看蛮腰| 精品人妻在线| 亚洲一区精品视频| www.亚洲精品| 亚洲男人天堂电影| 国产成人精品久久久| 一进一出抽搐视频| japanese白嫩丰满老师 | 五十路○の豊満な肉体| 色一欲一性一乱—区二区三区| 国内精品国产三级国产在线专| 日韩人妻无码免费视频一区二区三区 | 麻豆国产av超爽剧情系列| 91精品国产色综合久久不卡臀 | 久久亚洲精品av| 国产精品福利视频一区| 后进丰满的大屁股人妻| 熟女伊人| chinesehd一区二区三区| 国产精品久久久久久久美女直播 | 国产乱子伦精品| 97视频在线免费| 少妇人妻字幕精品毛片专区| 天堂网在线看|