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{"title":"Monel 400 Annealing Alloy Steel Round Bar Cold Rolled Round Rods","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/1f\/d25f4bdc9be2c972ed1ca2bd6249-200x200-1\/monel_400_annealing_alloy_steel_round_bar_cold_rolled_round_rods.jpg","attrs":{"Brand Name":"TISCO,BAO STEEL","Model Number":"Monel 400 UNS NO4400","Certification":"SGS,ISO","Place of Origin":"CHINA"}}
{"title":"Black Hot Rolled and Forged Alloy Steel Round Bar DIN 1.6580 30CrNiMo8 20-420mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/84\/fd\/78569f8238ab30cad4fd4fd18441-200x200-1\/black_hot_rolled_and_forged_alloy_steel_round_bar_din_1_6580_30crnimo8_20_420mm_dia.jpg","attrs":{"Brand Name":"TISCO,BAO STEEL","Model Number":"30CrNiMo8","Certification":"SGS,ISO","Place of Origin":"CHINA"}}
Alloy Round Bar Dia 55-400 mm Mat DIN 1.8519 31CrMoV9 3-6 Meters Tool Mold Steel
About products 31CrMoV9 is a nitriding steel which has at least 2.3%Cr,0.15%Mo,0.1%V as strengthening alloy elements. Due to its high wear resistance,it is mainly used in the automotive industry and general components mechanical engineering. 30CrMoV9 is difficult to weld and therefore should not be used in weld constructions.It can attain surface hardness of 800 HV after nitriding.31CrMov9 is directly involved the nitriding steel 30CrMoV9 (DIN1.7707).
Chemical Composition(%)
C
Mn
P
S
Si
V
Cr
Mo
0.27-0.34
0.40-0.70
≤ 0.025
≤ 0.035
≤ 0.4
0.1-0.2
2.3-2.7
0.15-0.25
Physical Property Density ,g/cm3: 7.85 Specific heat capacity, J/(kg.K):460 Thermal conductivity ,W/(m.K):42 Electric resistivity,Ohm.mm2 /m:0.19 Modulus of elasticity ,Gpa: 210 Mechanical Property
Diameter d mm
16-40
40-100
100-160
160-250
Yield Strength Mpa
≥900
≥800
≥700
≥650
Tensile Strength Mpa
1100-1300
1000-1200
900-1100
850-1050
Elongation, %
≥9
≥10
≥11
≥12
impact,J
≥25
≥30
≥35
≥40
Hardness,HB
331-380
298-359
271-331
253-319
Forging Heat the temperature between 1050ºC-1150ºC,hold suitable time for the steel to be thoroughly heated.Reheat the steel once temperature below 850°C. Crack is easily occured when improper cooling way after forged,so it should be cooled as slowly as possible in the furnace or in sand after forged. Heat Treatment Soft Annealing Heat to 650-720ºC, cool slowly in the furnace. This will produce a maximum Brinell hardness of 248. Hardening Harden from a temperature of 870-930ºC, followed by oil/polymer or water quenching. Tempering Tempering temperature: 580-700ºC. Nitriding Gas/plasma nitriding temperature (gas, salt bath): 570-580ºC Gas/plasma nitriding temperature (powder, plasma): 580ºC Surface hardness after nitriding: 800 HV
Hold time,h
Hardness,HV
30
750
540
430
410
400
380
380
90
830
750
640
530
430
410
410
120
790
730
660
600
540
460
400
180
800
760
700
640
580
550
420
Depth,mm
0.15
0.25
0.35
0.45
0.55
0.65
1
Application 31CrMoV9 nitriding steel is used in mechanics automotive and general mechanics, which must be nitrided for very high wear forces, for example, gears, rods or axes.Structural parts of medium and large cross sections and high surface hardness, e.g., valve and gate valves, cylinders for combustion engines, superheated steam valves and fittings.
F A Q 1. How can I know whether you are a reliable company? We are engaged in steel for nearly 10 years and have high visibility in domestic. We welcome you to inspect our company at any time. 2. Can you guarantee your products? Yes, we guarantee your 100% satisfaction on all our products. Please feel free to feedback us immediately. 3. Do you provide samples? Yes, we can provide most of the product samples. We will charge a little sample fee. But we will return the charge if you place an order. if you asked to use DHL, Blue Dart Express, FedEx, etc. to send samples, you can inform us in advance to prepare. 4. Can I visit your company? Of course, If you want to order our products and visit our company, please contact us to make an appointment.
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta... Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta...