Hardware & Tools

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Open Die Heavy Steel Forgings , 50Mn / 4140 / 60CrMo Forging Roller ?
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Products:
forged roller, alloy steel roller,rolling mill parts, hot roll, cold roll, roller shell, overall roll, metallurgy composite roller, forging white cast iron roll.
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Products reference:

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Material | ?
50Mn,4140,60CrMo,9Cr2Mo,90Cr3 |
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Forging equipment | ?
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8000T open die hydropress |
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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. |
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Melting process | ?
EF+LF+VD |
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Process technology | ?
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Forging+heat treatment+rough machining+finish machining |
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Forging ratio | ?
≥3.5 |
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Applicable standard | ?
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ASTM, ASME, DIN, JIS, ISO, BS, API, EN |
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Executive standard | ?
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JB/GB/EN/DIN/JIS/ASME/ASTM/ISO |
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Certification authority | ?
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ISO9001:2008,BV,GSG, IST, UL,CTI |
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Delivery terms | ?
Rough machining(N+T); finish machining(Q+T) |
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Test equipment | ?
Spectrograph, UT device, tensile and compact test machine, metalloscope,external micrometer, bore dial indicator, hardness testing device and so on. |
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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. |
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Custom properties

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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 | ? |
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Mechainal properties | ?
Dia.(mm) | ?
TS/Rm(Mpa) | ?
YS/Rp0.2(Mpa) | ?
EL/A5(%) | ?
RA/Z(%) | ?
Type Of notch | ?
Impact energy | ?
HBW |
50Mn | ?10 | ≥645 | ≥390 | ≥13 | ≥40 | V | ≥39 | ≤255HBS |
4140 | ?10 | 740~1000 | 450~850 | ≥12 | ≥25 | V | ≥40 | ≤250HBS |
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Process procedure:

Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment

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Commerce clause

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MOQ | 1PC |
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Max. diameter | ?
1600MM |
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Delivery time | ?
30-60 days |
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Package | ?
Wood pallet, steel frame support |
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Delivery terms | ?
FOB;CIF;CFR；DDU； |
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Payment terms | ?
T/T,LC |
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Type of shipping | ?
By ocean, air |
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Keywords
The common cold roll material is 9Cr, 9Cr2, 9CrV, 8CrMoV and so on. The cold roll required surface quench, and hardness is HS45-105. The hot roll usually use the material of 55Mn2, 55Cr,60CrMnMo, 60SiMnMo and so on. There are three common roller, such as cast steel roller, cast iron roll and forge roller. There is also a small quantity of hard alloy roll in bar and shape rolling mill, such as tungsten steel.
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Features:

Excellent mechanical properties;Produce different dimension based on customer’s requirements;Advanced manufacture equipments and inspection devices;Excellent technical personality;Control the production procedure strictly;Pay attention on the package protection

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