All Products
-
Raian IonescuMaterial quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
6m Length 31CrMoV9 / 1.8519 Alloy Steel Round Bar GB Forged Steel Rod
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | 31CrMoV9 |
| Minimum Order Quantity | 1 Ton |
| Price | 600-850 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 20Ton per week |
Contact me for free samples and coupons.
Whatsapp:0086 18588475571
Wechat: 0086 18588475571
Skype: sales10@aixton.com
If you have any concern, we provide 24-hour online help.
xProduct Details
| Products Name | Alloy Steel Round Bar | Diameter | 10 - 500mm |
|---|---|---|---|
| Length | 6m | Tech | Hot Rolled |
| Service | Cutting | MOQ | 1 Ton |
| Loading Port | Shanghai Port | Standard | ASTM EN GB |
| Highlight | GB Forged Steel Round Bar,31CrMoV9 Steel Round Bar,6m Length Steel Round Bar |
||
Product Description
6m Length 31CrMoV9 / 1.8519 Alloy Steel Round Bar GB Forged Steel Rod
Products Specification
|
Products Name |
31CrMoV9 Alloy Steel Round Bar |
|
Diameter |
10 - 500 mm |
|
Length |
6m or custom cutting any length as request |
|
Type |
Hot Rolled |
|
Brand |
BAOSTEEL DELTA DONGBEI HUAXI SHAGANG.etc |
|
MOQ |
1 Ton |
|
Loading Port |
Shanghai Port |
|
Packing |
packing by steel wire rope |
|
Deliver time |
5 - 7 days for stock materials |
|
Other Grade |
Q195,Q235,10#,20#,35#,45#,Q215,Q345,12Cr1Mov,15CrMo,304,3 16,20Cr,40Cr,20CrMo,35CrMo,42CrMo,40CrNiMo,GCr15,65Mn,50Mn, 50Cr,3Cr2W8V,20CrMnTi,5CrMnMo ,38CrMoAl, 31CrMoV9 |
|
Standard |
ASTM GB EN DIN |
|
Application |
Structure and Industrial |
Regular Standard Size of our Round Bar in Stock
|
Standard Diameter |
10 12 15 18 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 120 130 140 150 160 180 200 210 220 230 250 270 300 320 330 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 |
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).
1.Supply Form & Size & Tolerance
- Hot rolled bar:Φ6-Φ130mm,Length:3000-10000mm
- Hot Forged round bar:Φ130-Φ500mm,Length:3000-10000mm
- Flat bar/Blcoks:Thickness :120-800mm xWidth:120-1500mm,Length:2000-6000mm
| Surface Finish | Tolerance |
| Black For Forged condition | (0,+5mm) |
| Black For Rolled condition | (0,+1mm) |
| Rough Turned | (0,+3mm) |
| Grinding | Best h9 |
| Polished | Best h11 |
| Peeled | Best H11 |
| Cold Drawn | Best H11 |
2.Chemical Composition
| Grade | C | Mn | P | S | Si | V | Cr | Mo |
| 31CrMoV9/1.8519 | 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 |
3.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
4. 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 |
5.Forging
Heat the temperature between 1050℃-1150℃,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.
6.Heat Treatment
- Soft Annealing
Heat to 650-720℃, cool slowly in the furnace. This will produce a maximum Brinell hardness of 248. - Hardening
Harden from a temperature of 870-930℃, followed by oil/polymer or water quenching. - Tempering
Tempering temperature: 580-700℃. - Nitriding
Gas/plasma nitriding temperature (gas, salt bath): 570-580℃
Gas/plasma nitriding temperature (powder, plasma): 580℃
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 |
7.Jominy Test -Distance from quenched end mm
| mm | 2 | 8 | 12 | 16 | 20 | 30 | 40 | 50 | 60 | 70 |
| HRC | 51 | 50 | 50 | 49 | 48 | 46 | 44 | 42 | 41 | 41 |
8.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.
Recommended Products