North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Material Of Forged Bars:
20mncr5
Type:
Alloy Steel Bar
Standard:
AISI
Steel Grade:
400 Series
Technique:
Forged
Application:
Die Steel Bar
Surface Treatment:
Polished
Alloy:
Alloy
Special Use:
Mold Steel
Product Description
We are professional 20MnCr5 Forged/Forging Steel Round bars(1.7147,AISI 5120) factory from china
Alloyed case hardening steel for parts with a required core tensile strength of 1000 - 1300 N/mm² and good wearing resistance as boxes, piston bolts, spindles, camshafts, gears, shafts and other mechanical controlling parts.
Chemical Composition(%)
C
Mn
Si
P
S
Cr
0.17-0.22
1.10-1.40
0.40 max
0.035 max
0.035 max
1.00-1.30
Back to Top Mechanical Properties( T=20°C if not differently stated )
Heat treatment state
Diameter(mm)
Rm (Mpa)
QUENCHED AND TEMPERED
16 max
1200 min
QUENCHED AND TEMPERED
16-40
1000 min
QUENCHED AND TEMPERED
40-100
800 min
Back to Top HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES
-
TEMPERATURE ° C
Cooling Medium
Forging or hot rolling
850-1100
air
Normalizing
840-870
air
Soft Annealing
650-700
furnace 217HB max
Carburising
880-980
/
Core hardening
860-900
oil
Intermediate annealing
650-700
/
Case hardening
780-820
oil
Tempering
150-200
/
Jiangsu Liangyi Co.,Limited is one professonal special alloy material supplier from China,
Since establised in 1997, our products has been exported to many countries, such as American, European countries, Asian countries, and so on.Our products are widely used in petroleum and chemical industry, power generation, shipbuilding, heavy machinery, Oil&Gas applications:Christmas trees, wellhead components, spools, , riser applications, pressure vessel, and so on.
We own one workshop of more than 8000 square meters, with a vacuum melting, electroslag remelting, forging,Casting,heat treatment, machining, quality inspecting machines and a full-line of production system.
Our company mainly produces materials in:Carbon&alloy steel, Tool&Die Steel,Stainless steel, Duplex Stainless Steel, Nickel alloy, Super Alloy,Cobalt Based alloy,Heat Resistant steel,Invar alloy ,low Expansion Alloy,Soft Magnetic Alloy and so on
We could produce these material in Forging parts,Forged Rings,Rolled Rings,Bars,flanges, Casting Parts,Pipe Fittings,seamless pipe,Weled Pipes,Plates,Sheets,Strips,Coils Wires,spring ,Fasteners,Machining Parts, and so on
Following is the steel grade that we could do
