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(wǎng)
20F2簡介

20F2,及該型號鋼材的基本信息、化學(xué)元素成分、機械性能、力學(xué)性能、熱處理溫度、同等型號參照表等

20F2

20F2,及該型號鋼材的基本信息、化學(xué)元素成分、機械性能、力學(xué)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(biāo)準(zhǔn) 國家 應(yīng)用
Steel Grades - 20F2
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)
376 (≥) 767 (≥) 12 42 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
物理性質(zhì)信息:
溫度 彈性模量 系數(shù) 熱導(dǎo)率 比熱容量 比電阻率 密度 加權(quán)系數(shù)
41 - - 0.34 -
775 149 - 21.3 442 -
783 - 44 42.2 114 141
熱處理信息:
Heat treated : 1268°C - 1448°C
對照表(同等等級)信息:
型號 標(biāo)準(zhǔn) 國家 應(yīng)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(biāo)簽: 20F2、20F2鋼材、20F2材料
全球鋼材百科網(wǎng)
性xxxxfreexxxxx国产| 欧美激情一区二区丰满熟妇| 久久久精品国产亚洲av网深田| 中文字幕一区二区三区三州 | 精品粉嫩小又紧又爽av| 黄色一区二区三区视频| 天天天操天天天干| 日韩欧美电影在线观看| 日韩内射在线| 中文字幕日韩精品在线| 亚洲精品二区三区| 久久亚洲国产精品尤物| 无套内射人妻视频| 亚洲一区二区蜜桃| 可以免费观看av毛片| 久久精品亚洲天堂| 丰满人妻一区二区三区四区仙踪林| 天天干天天日天天射| 最新极品jizzhd欧美| 在线h观看| 亚洲老熟女av资源一区二区三区| 妺妺窝人体色WWW在线小说| 欧美性猛交一区二区三区精品| 粗大的内捧猛烈进出少妇直播| 伊人久久麻豆| 成人AV无码一区二区三区| 高潮毛片无遮挡高清视频| 丰满人妻奶水持续出在线| 91久久精品人妻一区二区三区蜜桃| 亚洲熟女综合色一区二区三区介绍 | 五月婷婷之综合激情| 亚洲熟女综合色一区二区三区| 日本丰满少妇免费一区| 国产亚洲精品美女久久久久| 国产欧美一区二区三区在线看| 成人午夜在线视频| 国产精品久久久久久久av福利| 亚洲成人av电影在线观看| а√天堂8资源最新版| 老少妇与性动交α欧美精品| 久久亚洲婷婷|