Commitment: a penalty at ten! 40Mn Sales Hotline: Zhang Ting 18964196422 021-66630039 
 Business Manager: Shuai Dong (Manager) 15900718360 021-56691522 
 Sales unit: Kai Steel Co., Ltd Shanghai Steel 
 Business QQ: 327237499 969552363 1425895918 
 Official Website: www.steelqi.com 
 Business Consulting: 327237499@qq.com 
 Shipping Address: River Road, Baoshan District Shanghai, Lane 448 No. 1, 1402 (Baosteel No. 2 Gate 2 km) Welcome to the new and old customers to visit, first make friends! 
 Company aim: for many years specialized in all kinds of high-grade steel sales, credibility first, customer first, with a grateful heart and a professional business knowledge to provide customers with comprehensive after sales service! 
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 40Mn 40Mn round steel rod 
 40Mn 40Mn round steel rod 
 40Mn round Manufacturer: Xingcheng heavy Daye Special Steel Baosteel your Fushun Special Steel 
 40Mn round common specifications:? ￠ 12 ￠ 14 ￠ 16 ￠ 20 ￠ 25 ￠ 30 ￠ 35 ￠ 40 ￠ 45 ￠ 50 ￠ 55 ￠ 60 ￠ 70 ￠ 75 ￠ 80 ￠ 85 
 40Mn alloy structural steel:? ￠ 90 ￠ 100 ￠ 110 ￠ 120 ￠ 130 ￠ 140 ￠ 150 ￠ 160-250 
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 Shanghai Steel Kai solemn promise: a penalty at ten! Sincere service! Procurement of materials from our company, a round on each plate are each an original 100% guaranteed authentic, together with the material and the material corresponding to the book, please be assured co-operation with the Shanghai steel Kai! 
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 Our advantages: the supply and service has a long experience, has a complete inventory of steel and rich, with a regular purchase channels and reasonable price, 
 Has a good technical support and after-sales service, have a perfect logistics and speed of delivery, the Division has owned the team can provide customers with quick material delivery, remote clients are given special express delivery company. The following provincial areas can be served: 
 Our many years of focus on 40Mn round: 
 Zhenjiang, Danyang, Jurong Gaoyou Jiangdu Yizheng Zhoukou Taicang, Wujiang Yangzhong Jingjiang Jinzhou, Panjin round 40Mn 
 Tonglu Hangzhou Xiaoshan, Fuyang built Dean Ji Pro An Changxing, Shaoxing, Zhuji Huangyan round sea 40Mn 
 Nanchang, Jiangxi Ji'an new Yu Yichun Haimen Shangrao Anqing Fenghua Shanghai, Yangzhou, Changzhou 40Mn round 
 Jiashan, Pinghu, Haiyan Pan, Jinhua, Yiwu, Dongyang, Zibo, Wuxi, Jiangyin, Tongxiang Suqian 40Mn round Qidong 
 Jinyun Longquan Cixi Cixi, Fenghua, Ningbo Beilun west of Yueqing Jiangyan Cangnan Hefei round Zhoushan 40Mn 
 Danyang, Weihai, Yangzhou Haining Hai River Lanxi sunshine Xuchang, Yancheng, Qingdao, Laiwu 40Mn round of Luoyang 
 Xi'an, Nanjing, Ningbo, Taizhou, Xiamen, Xi'an, Nanchang, Taizhou Ryan Yuyao Dongying, Yantai round roof 40Mn 
 Beijing, Tai'an, Weifang sunshine Shangyu, Yuyao Jiangdong Huzhou, Changshu Elephant round Huai'an Jinan, Shandong 40Mn 
 Jincheng Taiyuan, Xi'an, Wenzhou Yongjia Xianju Yuhuan Hanzhong, Baoji, Xianyang, Yan'an, Shaanxi Ankang round 40Mn 
 Hebi, Luoyang, Kaifeng, Anyang, Henan Xinxiang, Xinyang, Nanyang Shangqiu Huainan six An Yongkang 40Mn round Baoying 
 Liaoning and Hebei Baoding, Cangzhou, Chengde, Dandong, Dalian, Fushun, Fuxin Road and Bridge Xinchang 40Mn country round in Shengzhou 
 Siping, Changchun, Jilin and Jilin Tonghua Yingkou, in Changzhi, Shanxi, Zibo, Weifang, Qingdao, Shenyang, Zhenhai 40Mn round 
 Nanning, Liuzhou, Guilin, Wuzhou, Yulin, Guangxi Beihai Liaoyang Tieling Taizhou Weihai Yixing 40Mn round Zaozhuang 
 Huai'an, Jiangsu Liyang, Changzhou Jintan Hongze Lake Huangshan, Nanjing, Nantong, Wenling 40Mn round Quzhou Xuancheng 
 Changshu, Suzhou, Hangzhou, Lishui, such as the East Rugao, Tongzhou Wujiang, Kunshan, Taicang, Huzhou Zhengzhou 40Mn round Suqian 
 Jing Jiang Taixing Yixing, Wuxi, Xuzhou Yancheng, Dongtai Jiangyin Sheyang Wenzhou, Wuhu Huangyan Island Place, round steel 40Mn 
 Chaohu, Chuzhou, Anqing, Anhui Tongling, Wuhu, Fuyang, Hefei, Huaibei, Bengbu 40Mn Jiaxing, Ningbo ring round the water 
 Lishui, Taizhou, Hefei, Shanghai, Pinghu Pingyang Dongying, Binzhou, Dezhou, Liaocheng Linyi, Jining, Laiwu round 40Mn 
 Deqing Zhangjiagang, Lianyungang, Yantai, Jiaxing Pei Ma On Shan Jingdezhen Jiujiang Huludao round Pingxiang 40Mn 
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 40Mn steel round bar, steel, materials, price, price, wholesale, retail, direct sales price, direct selling price, wholesale price, 
 40Mn round material prices, regional distributors, regional distributors nationwide, sales company, sales department, sales offices, sales outlets 
 40Mn round Xingcheng, Wuchang on the steel, Wuyang Steel, Stone Steel, Benxi Iron and Steel, Xining Special Steel, long steel, long special, Dragons 
 40Mn special round East, Northeast Special Steel, to Hong Kong, Yingkou, Xinyu, the Great Wall Special Steel, E Steel, the first special, giant steel Soviet Union 
 40Mn steel round bar Liu, Tianjin Steel, heavy special, Yingkou, Fushun steel, expensive steel, long and strong, Hangzhou Iron and Steel, Huai Steel, Daye Special Steel 
 40Mn round TISCO, new steel, steel, stone, steel manufacturers, common specifications, 
 40Mn round small size, large size, domestic, large steel mills, year-round supply, perennial stock, life, purpose 
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 40Mn steel round bar, forging a round, rolled round, forged rods, round base, diameter ￠ mm, hair circle, circle of light vehicles, light round 
 40Mn round cold-drawn round steel, cold-drawn rod, pull the light stick, light pull round, wire rod, polished rod, polished round, 
 40Mn round φ0.1-φ3.0 φ3 φ4 φ5 φ6 φ7 φ8 φ9 φ9.5 φ10 φ11 φ12 φ12.7 φ14φ15 ￠ 16 ￠ 17 ￠ 18 
 40Mn round ￠ 19 ￠ 20 ￠ 21 ￠ 22 ￠ 23 ￠ 24 ￠ 25 ￠ 36 ￠ 24 ￠ 25 ￠ 26 ￠ 27 ￠ 28 ￠ 29 ￠ 30 ￠ 31 
 40Mn round ￠ 32 ￠ 34 ￠ 35 ￠ 36 ￠ 38 ￠ 40 ￠ 42 ￠ 44 ￠ 45 ￠ 46 ￠ 48 ￠ 50 ￠ 52 ￠ 54 ￠ 55 ￠ 56 
 40Mn round ￠ 58 ￠ 62 ￠ 64 ￠ 65 ￠ 66 ￠ 68 ￠ 70 ￠ 72 ￠ 74 ￠ 75 ￠ 76 ￠ 78 ￠ 80 ￠ 82 ￠ 84 ￠ 85 
 40Mn round ￠ 86 ￠ 88 ￠ 90 ￠ 92 ￠ 94 ￠ 95 ￠ 96 ￠ 98 ￠ 100 ￠ 102 ￠ 104 ￠ 105 ￠ 106 ￠ 108 
 40Mn round ￠ 110 ￠ 112 ￠ 114 ￠ 115 ￠ 116 ￠ 118 ￠ 120 ￠ 122 ￠ 124 ￠ 125 ￠ 126 ￠ 128 ￠ 130 
 40Mn round ￠ 132 ￠ 134 ￠ 135 ￠ 136 ￠ 138 ￠ 140 ￠ 142 ￠ 144 ￠ 145 ￠ 146 ￠ 148 ￠ 150 ￠ 152 
 40Mn round ￠ 154 ￠ 155 ￠ 156 ￠ 158 ￠ 160 ￠ 162 ￠ 164 ￠ 165 ￠ 166 ￠ 168 ￠ 170 ￠ 172 ￠ 174 
 40Mn round ￠ 175 ￠ 176 ￠ 178 ￠ 180 ￠ 182 ￠ 184 ￠ 185 ￠ 186 ￠ 188 ￠ 190 ￠ 192 ￠ 194 ￠ 195 
 40Mn round ￠ 196 ￠ 198 ￠ 200 ￠ 202 ￠ 204 ￠ 206 ￠ 208 ￠ 210 ￠ 212 ￠ 214 ￠ 215 ￠ 216 ￠ 218 
 40Mn round ￠ 220 ￠ 225 ￠ 230 ￠ 235 ￠ 240 ￠ 245 ￠ 250 ￠ 255 ￠ 260 ￠ 265 ￠ 270 ￠ 275 ￠ 280 
 40Mn round dealers, wholesale business, an agent, sales center, wholesale and factory direct sales, agents, home agents 
 40Mn round local agents, wholesalers, distributors, manufacturers, wholesalers, retailers, wholesale sales agents 
 40Mn steel round bar, special steel, stock, absolutely stock, franchise, complete specifications, insurance materials new arrival, 
 40Mn round tool steel, mold steel, mold material, what is steel? What is the material? Where to sell, where to buy? 
 40Mn round mechanical properties, delivery status, processing and welding, machining process, treatment process, heat treatment, mechanical properties 
 40Mn round steel components, corresponding to the chemical composition, chemical element, element table, normalizing, tempering, annealing, quenching, hardness, cutting 
 40Mn corresponding round grade, steel, GB, DIN, the German standard, Steel, domestic, national standard, imports, the European standard 
 40Mn round order phone? Sales call, year round supply, long-term inventory, long-term supply, manufacturers stock offer 
 40Mn round Baosteel, PET, Fushun Special Steel, East Point, long special, Wuhan Iron and Steel, New Steel, Shougang, the first special steel, tin and steel 
 40Mn alloy steel round bar military, tube steel, round steel, carbon steel round bar, stainless bearing steel round bar, spring steel round bar, 
 40Mn steel, round steel round steel tube, carbon steel, round steel, carbon tool steel, tool steel round steel round steel, alloy structural steel structural steel 
 40Mn steel, round steel round bar stainless bearings, alloy round steel, alloy steel 
 40Mn round hexagonal hexagonal cold drawn square steel flat square steel cold-drawn cold-drawn steel hexagonal rod-shaped, cold-drawn steel, cold drawn round steel 
 Benxi Iron and 40Mn 40Mn 40Mn molded 40Mn alloy steel round bar rolling round mechanical properties of 40Mn 40Mn 40Mn seat acid-resistant steel 40Mn round 
 Normalizing bearing steel 40Mn 40Mn 40Mn 40Mn high-temperature mechanical properties of quenched 40Mn 40Mn 40Mn manufacturer sales center 40Mn bar 
 Xining Special Steel rod 40Mn 40Mn 40Mn 40Mn steel oil drilling grade chemical composition corresponding to 40Mn steel 40Mn 40Mn 40Mn use stone steel 
 Tempering 40Mn 40Mn 40Mn high-chromium bearing steel heat-treated alloy steel plate 40Mn 40Mn 40Mn direct delivery agents 40Mn 40Mn state bar 
 Annealing manufacturers 40Mn 40Mn 40Mn 40Mn Xingcheng Fushun Special Steel 40Mn 40Mn 40Mn alloy 40Mn steel materials 
 American Standard quenching temperature 40Mn 40Mn 40Mn 40Mn alloy 40Mn steel heat-treated alloy steel round bar 40Mn 40Mn 40Mn steel is what material 
 Tensile strength of nozzle 40Mn 40Mn 40Mn 40Mn steel Great Wall Special Steel Forged Round 40Mn 40Mn 40Mn GB 40Mn steel prices 
 Northeast Special Steel distributor 40Mn 40Mn 40Mn 40Mn standard welding 40Mn Baosteel processing 40Mn 40Mn 40Mn steel gear 
 Grade: 40Mn 
 Standard: GB / T 699-1988 
 Features and application: 
 40Mn carbon steel can be used in a normalized state, but also in the quenched and tempered condition to use. Cutting performance, cold plastic deformation of the medium, poor welding performance. Withstand fatigue loads used in the manufacture of parts such as shafts and high rollers should be 

 Ability to work under the screws, nuts and so on. 
 Hardenability slightly higher than the 40 steel. After heat treatment, strength, hardness. Toughness slightly higher than the 40 steel, cold plastic deformation of the middle, can be good cutting, welding low, with a thermal sensitivity and temper brittleness, water quenched easy to crack. Components for fatigue crank. Rollers 
 . Axis. Link. 
 Edit this paragraph chemical composition 
 ● Chemical Composition: 
 Carbon C: 0.37 ~ 0.45 
 Si Si: 0.17 ~ 0.37 
 Manganese Mn: 0.70 ~ 1.00 
 Sulfur S: ≤ 0.035 
 Phosphorus P: ≤ 0.035 
 Chromium Cr: ≤ 0.25 
 Ni-Ni: ≤ 0.30 
 Copper Cu: ≤ 0.25 
 Editing the mechanical properties of this paragraph 
 ● Mechanical Properties: 
 Tensile strength σb (MPa): ≥ 590 (60) 
 Yield strength σs (MPa): ≥ 355 (36) 
 Elongation δ5 (%): ≥ 17 
 Reduction of area ψ (%): ≥ 45 
 Impact energy Akv (J): ≥ 47 
 Impact toughness αkv (J/cm2): ≥ 59 (6) 
 Hardness: no heat treatment ≤ 229HB; annealed steel ≤ 207HB 
 Sample Size: Sample size is 25mm 
 Heat treatment and microstructure specifications: 
 Heat treatment specifications: 
 Normalizing, 860 ℃; quenching, 840 ℃; tempering, 600 ℃. 
 Delivery status: 
 With no heat treatment or heat treatment (annealing, normalizing or tempering) the status of delivery. Demands heat treatment delivery should be specified in the contract, not indicated by no heat treatment delivery. 
 Edit this paragraph 35Mn, 40Mn, 45Mn difference 
 Three materials are all high-quality carbon structural steel, the main difference is the carbon content, other ingredients are the same. With the carbon content of different material properties are directly related. 35Mn cold plastic deformation of the cutting medium may be good, but poor welding 
 . Should be quenched before use. Applied to the shaft. Bolts. Nuts. Screws, mandrels. Gear, but also medium-sized machinery for the manufacture of bolts, nuts, levers and so on. 40Mn carbon steel can be used in a normalized state, but also in the quenched and tempered condition 
 To use. Cutting performance, cold plastic deformation of the medium, poor welding performance. Withstand fatigue loads used in the manufacture of parts, such as the roller shaft to work under high stress and screws, nuts and so on. After heat treatment, welding low, with a heat-sensitive 
 And temper brittleness, water quenched easy to crack. Components for fatigue crank. Rollers. Axis. Link. 45Mn carbon steel after quenching obtain better mechanical properties, cutting performance is still good, but poor weldability, low cold plastic deformation, there are back 
 Fire brittle orientation, generally used in the quenched state, but also in the quenched and tempered or normalized state use. Manufacture of parts for wear and tear, such as shaft, spindle, crank, splined shaft, connecting rod, universal joint shaft, gear lever, gear, clutch disc 
 , Bolts, nuts, etc.