Commitment: a penalty at ten! 40MnB 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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 40MnB round steel rod 40MnB 
 40MnB round steel rod 40MnB 
 40MnB round Manufacturer: Xing Cheng, Daye, re special, Baosteel, expensive steel, Fushun Special Steel 
 40MnB round common specifications:? ￠ 12 ￠ 14 ￠ 16 ￠ 20 ￠ 25 ￠ 30 ￠ 35 ￠ 40 ￠ 45 ￠ 50 ￠ 55 ￠ 60 ￠ 70 ￠ 75 ￠ 80 ￠ 85 
 40MnB 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 40MnB round: 
 Zhenjiang, Danyang, Jurong Gaoyou Jiangdu Yizheng Zhoukou Taicang, Wujiang Yangzhong Jingjiang Jinzhou, Panjin 40MnB round 
 Tonglu Hangzhou Xiaoshan, Fuyang built Dean Ji Pro An Changxing, Shaoxing, Zhuji Huangyan round waterfront 40MnB 
 Nanchang, Jiangxi Ji'an new Yu Yichun Haimen Shangrao Anqing Fenghua Shanghai, Yangzhou, Changzhou 40MnB round 
 Jiashan, Pinghu, Haiyan Pan, Jinhua, Yiwu, Dongyang, Zibo, Wuxi, Jiangyin, Tongxiang Suqian 40MnB round Qidong 
 Jinyun Longquan Cixi Cixi, Fenghua, Ningbo Beilun west of Yueqing Zhoushan 40MnB Jiangyan Cangnan Hefei round 
 Danyang, Weihai, Yangzhou Haining Hai River Lanxi sunshine Xuchang, Yancheng, Qingdao, Laiwu 40MnB round of Luoyang 
 Xi'an, Nanjing, Ningbo, Taizhou, Xiamen, Xi'an, Nanchang, Taizhou Ryan Yuyao roof 40MnB round Dongying, Yantai 
 Beijing, Tai'an, Weifang sunshine Shangyu, Yuyao Jiangdong Huzhou, Changshu Elephant round Huai'an Jinan, Shandong 40MnB 
 Jincheng Taiyuan, Xi'an, Wenzhou Yongjia Xianju Yuhuan Hanzhong, Baoji, Xianyang, Yan'an, Shaanxi Ankang 40MnB round 
 Hebi, Luoyang, Kaifeng, Anyang, Henan Xinxiang, Xinyang, Nanyang Shangqiu Huainan six An Yongkang 40MnB round Baoying 
 Liaoning and Hebei Baoding, Cangzhou, Chengde, Dandong, Dalian, Fushun, Fuxin Road and Bridge Xinchang 40MnB country round in Shengzhou 

 40MnB round ￠ 110 ￠ 112 ￠ 114 ￠ 115 ￠ 116 ￠ 118 ￠ 120 ￠ 122 ￠ 124 ￠ 125 ￠ 126 ￠ 128 ￠ 130 
 40MnB round ￠ 132 ￠ 134 ￠ 135 ￠ 136 ￠ 138 ￠ 140 ￠ 142 ￠ 144 ￠ 145 ￠ 146 ￠ 148 ￠ 150 ￠ 152 
 40MnB round ￠ 154 ￠ 155 ￠ 156 ￠ 158 ￠ 160 ￠ 162 ￠ 164 ￠ 165 ￠ 166 ￠ 168 ￠ 170 ￠ 172 ￠ 174 
 40MnB round ￠ 175 ￠ 176 ￠ 178 ￠ 180 ￠ 182 ￠ 184 ￠ 185 ￠ 186 ￠ 188 ￠ 190 ￠ 192 ￠ 194 ￠ 195 
 40MnB round ￠ 196 ￠ 198 ￠ 200 ￠ 202 ￠ 204 ￠ 206 ￠ 208 ￠ 210 ￠ 212 ￠ 214 ￠ 215 ￠ 216 ￠ 218 
 40MnB round ￠ 220 ￠ 225 ￠ 230 ￠ 235 ￠ 240 ￠ 245 ￠ 250 ￠ 255 ￠ 260 ￠ 265 ￠ 270 ￠ 275 ￠ 280 
 40MnB military alloy steel round bar, round steel tube, carbon steel round bar, stainless bearing steel round bar, spring steel round bar, 
 40MnB round tube steel round bar, carbon steel, round steel, carbon tool steel, tool steel round steel round steel, alloy structural steel structural steel 
 40MnB round stainless bearing steel round bar, alloy round steel, alloy steel 
 40MnB 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 Steel 40MnB molded 40MnB 40MnB round rolling circle 40MnB seat 40MnB 40MnB mechanical properties of steel 40MnB round 40MnB acid 
 40MnB normalizing 40MnB mechanical properties of bearing steel 40MnB manufacturers 40MnB 40MnB 40MnB temperature quenching 40MnB bar sales center 40MnB 
 Xining Special Steel 40MnB 40MnB oil drilling steel rod 40MnB corresponding 40MnB 40MnB grade steel 40MnB rock chemical composition of steel 40MnB use 40MnB 
 40MnB tempering 40MnB heat-treated high-chromium bearing steel 40MnB direct 40MnB 40MnB steel plate 40MnB delivery status bar 40MnB agents 40MnB 
 40MnB manufacturers 40MnB annealing 40MnB Xingcheng 40MnB Fushun Special Steel 40MnB 40MnB 40MnB steel alloy material 40MnB 
 Siping, Changchun, Jilin and Jilin Tonghua Yingkou, in Changzhi, Shanxi, Zibo, Weifang, Qingdao, Shenyang, Zhenhai 40MnB round 
 Nanning, Liuzhou, Guilin, Wuzhou, Yulin, Guangxi Beihai Liaoyang Tieling Taizhou Weihai Yixing 40MnB round Zaozhuang 
 Huai'an, Jiangsu Liyang, Changzhou Jintan Hongze Lake Huangshan, Nanjing, Nantong, Wenling 40MnB round Quzhou Xuancheng 
 Changshu, Suzhou, Hangzhou, Lishui, such as the East Rugao, Tongzhou Wujiang, Kunshan, Taicang, Huzhou Zhengzhou 40MnB round Suqian 
 Jing Jiang Taixing Yixing, Wuxi, Xuzhou Yancheng, Dongtai Jiangyin Sheyang Huangyan, Wenzhou, Wuhu 40MnB round Yuncheng 
 Chaohu, Chuzhou, Anqing, Anhui Tongling, Wuhu, Fuyang, Hefei, Huaibei, Bengbu 40MnB Jiaxing, Ningbo ring round the water 
 Lishui, Taizhou, Hefei, Shanghai, Pinghu Pingyang Dongying, Binzhou, Dezhou, Liaocheng Linyi, Jining, Laiwu 40MnB round 
 Deqing Zhangjiagang, Lianyungang, Yantai, Jiaxing Pei Ma On Shan Jingdezhen Jiujiang Pingxiang 40MnB Huludao round 
 40MnB round bar steel, steel, materials, price, price, wholesale, retail, direct sales price, direct selling price, wholesale price, 
 40MnB round material prices, regional distributors, regional distributors nationwide, sales company, sales department, sales offices, sales outlets 
 40MnB round dealers, wholesale business, an agent, sales center, wholesale and factory direct sales, agents, home agents 
 40MnB round local agents, wholesalers, distributors, manufacturers, wholesalers, retailers, wholesale sales agents 
 40MnB round bar steel, special steel, stock, absolutely stock, franchise, complete specifications, insurance materials new arrival, 
 40MnB round tool steel, mold steel, mold material, what is steel? What is the material? Where to sell, where to buy? 
 40MnB round mechanical properties, delivery status, welding process, processing, treatment process, heat treatment, mechanical properties 
 40MnB round steel components, corresponding to the chemical composition, chemical element, element table, normalizing, tempering, annealing, quenching, hardness, cutting 
 40MnB round steel grade corresponding to, steel, GB, DIN, the German standard, Steel, domestic, national standard, imports, the European standard 
 40MnB round order phone? Sales call, year round supply, long-term inventory, long-term supply, manufacturers stock offer 
 40MnB round Baosteel, PET, Fushun Special Steel, East Point, long special, Wuhan Iron and Steel, New Steel, Shougang, the first special steel, tin and steel 
 40MnB round Xingcheng, Wuchang on the steel, Wuyang Steel, Stone Steel, Benxi Iron and Steel, Xining Special Steel, long steel, long special, Dragons 
 40MnB 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 
 40MnB round Liuzhou Iron and Steel, Tianjin Steel, heavy special, Yingkou, Fushun steel, expensive steel, long and strong, Hangzhou Iron and Steel, Huai Steel, Daye Special Steel 
 40MnB round TISCO, new steel, steel, stone, steel manufacturers, common specifications, 
 40MnB round small size, large size, domestic, large steel mills, year-round supply, perennial stock, life, purpose 
 40MnB round steel round steel, alloy round steel, high temperature, heat treatment, welding quenching temperature, the national standard is what the material, 
 40MnB round tool steel, 
 40MnB round rod, round bar, round material, bar, bar, forging a round, small rods, steel, silver branch, the small round bar, forged round bars 
 40MnB round wire, round forging, rolling circle, forging bar, round base, diameter ￠ mm, hair circle, circle of light vehicles, light round 
 40MnB round cold-drawn round steel, cold-drawn rod, pull the light stick, light pull round, wire rod, polished rod, polished round, 
 40MnB round φ0.1-φ3.0 φ3 φ4 φ5 φ6 φ7 φ8 φ9 φ9.5 φ10 φ11 φ12 φ12.7 φ14φ15 ￠ 16 ￠ 17 ￠ 18 
 40MnB round ￠ 19 ￠ 20 ￠ 21 ￠ 22 ￠ 23 ￠ 24 ￠ 25 ￠ 36 ￠ 24 ￠ 25 ￠ 26 ￠ 27 ￠ 28 ￠ 29 ￠ 30 ￠ 31 
 40MnB round ￠ 32 ￠ 34 ￠ 35 ￠ 36 ￠ 38 ￠ 40 ￠ 42 ￠ 44 ￠ 45 ￠ 46 ￠ 48 ￠ 50 ￠ 52 ￠ 54 ￠ 55 ￠ 56 
 40MnB round ￠ 58 ￠ 62 ￠ 64 ￠ 65 ￠ 66 ￠ 68 ￠ 70 ￠ 72 ￠ 74 ￠ 75 ￠ 76 ￠ 78 ￠ 80 ￠ 82 ￠ 84 ￠ 85 
 40MnB round ￠ 86 ￠ 88 ￠ 90 ￠ 92 ￠ 94 ￠ 95 ￠ 96 ￠ 98 ￠ 100 ￠ 102 ￠ 104 ￠ 105 ￠ 106 ￠ 108 
 40MnB quenching temperature 40MnB American Standard 40MnB alloy steel round bar 40MnB 40MnB 40MnB alloy heat treatment of steel 40MnB 40MnB what is material 
 40MnB nozzle 40MnB tensile strength steel 40MnB 40MnB Great Wall Special Steel Forged Round 40MnB 40MnB steel prices 40MnB GB 40MnB 
 Northeast Special Steel 40MnB 40MnB dealer 40MnB welding 40MnB Baosteel processing 40MnB 40MnB 40MnB standard steel gear 40MnB 
 40MnB, alloy structural steel. Unified digital code: A71402 
 Standard: GB / T 3077-1988 
 Edit this section outlines 
 Feature 
 High strength, hardness, wear resistance and good toughness, is an alternative to the more successful new 40Cr steel steel. Modulation of carbon steel, cold heading die steel. The steel price is moderate, easily processed, after appropriate heat treatment after the availability of a certain toughness, ductility and wear resistance. Normalizing the ball of the organization can promote and improve the hardness of less than 160HBS rough cutting. Temperature of 550 ~ 570 ℃ in the tempering, the steel has the best mechanical properties. Hardenability of the steel is higher than 45 steel, suitable for high-frequency hardening, flame hardening and other surface hardening treatment. 
 40MnB alloy steel 
 Used cars on the steering arm, steering knuckle, steering shaft, axle, worm, spline shaft, brake adjustment arm, but also a larger cross-section instead of 40Cr steel parts. This steel quenched after for the manufacture of medium load and medium speed to withstand the mechanical parts work, such as automotive steering knuckle, on the machine after the axle and gear, shaft, worm, spline shaft, the top cover, etc.; by quenching and medium-temperature tempering for the manufacture of high load, the impact of work and medium speed parts such as gears, shaft, oil pump rotor, slide, rings, etc.; after quenching and tempering for the manufacture of heavy duty, low impact and wear resistance, cross-sectional thickness of 25mm on the following physical components, such as worm, spindle shaft, ring, etc.; after quenching and after quenching for the manufacture of high-frequency surface has a high surface hardness and wear resistance no significant impact on the parts such as gears, sleeves, shafts, spindles, crankshafts, spindles, pins, connecting rods, screws, nuts, intake valve and so on. In addition, the manufacture of steel and suitable for carbonitriding treatment of a variety of transmission parts, such as large diameter and low-temperature toughness, good gear and shaft 
 This steel is generally used in the quenched state, temperature range -20 ~ 425 ℃, the main place of 40Cr steel production, a small section of the quenched parts, such as automotive axle, steering shaft, worm, spline shaft and spindle , gear, etc. They can also replace the 40Cr steel production Φ250 ~ 320mm hoist a large section of the intermediate shaft and other parts. When the production of smaller parts can be replaced when the steel 40CrNi steel use. 
 Edit this section the physical properties 
 Chemical composition 
 Carbon C: 0.37 ~ 0.44 
 Si Si: 0.17 ~ 0.37 
 Manganese Mn: 1.10 ~ 1.40 
 Sulfur S: to allow the residual content of ≤ 0.35 
 Phosphorus P: allow the residual content of ≤ 0.35 
 Chromium Cr: allow the residual content of ≤ 0.30 
 Ni: to allow the residual content of ≤ 0.30 
 Copper Cu: to allow the residual content of ≤ 0.30 
 Boron B: 0.0005 ~ 0.0035 
 Mechanical properties 
 Blank sample size (mm): 25 
 Heat treatment: 
 The first quenching temperature (℃): 850; Coolant: Oil 
 Second quenching temperature (℃): - 
 Tempering heating temperature (℃): 500; coolant: water, oil 
 Tensile strength σb (MPa): ≥ 980 (100) 
 Yield strength σs (MPa): ≥ 785 (80) 
 Elongation δ5 (%): ≥ 10 
 Reduction of area ψ (%): ≥ 45 
 Impact energy Akv (J): ≥ 47 
 Impact toughness αkv (J/cm2): ≥ 59 (6) 
 Brinell hardness (HBS100/3000) (annealing or tempering condition): ≤ 207 
 [Main features] 
 This is an alternative to 40Cr steel, the more successful of the new steel, which has high strength, hardness, wear resistance and good toughness, its hardenability slightly higher than the 40Cr in the critical oil quenching diameter of 18 ~ 33mm; normalizing good after cutting, cold drawing, rolling, tapping, and forging, heat treatment process performance are good, high temperatures, grain growth, oxidation, decarburization orientation and deformation hardening tendencies are small; but have temper brittleness, tempering somewhat less stable than the 40Cr steel.