Customization: | Available |
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Application: | Agricultural Equipment, Automotive Industry, Construction Industry, Marine Industry, Medical Industry |
Certification: | CE, ISO9001 |
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Material | 4130,4140,8620,8640,9Cr2Mo,50Mn,60CrMo |
Forging equipment | 8000T open die hydropress |
Apply for | Roller is the important part for rolling mill. The rollers in pair or group rolling with pressure to roll the steel. It bears the dynamic and static load, the affact of abrasion and temperature change. |
Melting process |
EF+LF+VD |
Process technology | Forging+heat treatment+rough machining+finish machining |
Forging ratio | ≥3.5 |
Applicable standard | ASTM, ASME, DIN, JIS, ISO, BS, API, EN |
Executive standard | JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
Certification authority | ISO9001:2008,BV,SGS, IST, UL,CTI |
Delivery terms | Rough machining(N+T); finish machining(Q+T) |
Test equipment |
Spectrograph, UT device, tensile and compact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
Service |
Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer's requirements as the principal thing, and pay attention on the products quality. |
Material elements | C | Si | Mn | P | S | Cr | Ni | Mo | Others |
50Mn | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | |
4140 | 0.38-0.43 | 0.15-0.35 | 0.60-0.90 | ≤0.035 | ≤0.040 | 0.80-1.10 | -- | 0.15-0.25 | - |
60CrMo | 0.55-0.65 | 0.17-0.30 | 0.450-0.80 | ≤0.020 | ≤0.015 | 0.50-0.80 | ≤0.25 | 0.20-0.40 | |
9Cr2Mo | 0.85-0.95 | 0.25-0.45 | 0.20-0.40 | ≤0.025 | ≤0.025 | 1.70-2.10 | ≤0.25 | 0.20-0.40 |
Mechainal properties |
Dia.(mm) |
TS/Rm(Mpa) |
YS/Rp0.2(Mpa) |
EL/A5(%) |
RA/Z(%) |
Type Of notch |
Impact energy |
HBW |
50Mn | Ø10 | ≥645 | ≥390 | ≥13 | ≥40 | V | ≥39 | ≤255HBS |
4140 | Ø10 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |