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 39NiCrMo3 Forged/Forging Steel Round bars factory from china
Chemical analysis -% by mass
Chemical elements
C
Si
Mn
P
S
Cr
Mo
Ni
%, by mass
0,35 - 0,43
0,40
0,50 - 0,80
max 0.025
max 0,035
0,60-1,00
0,15-0,25
0,70-1,00
Permissible deviation
± 0.02
± 0,03
± 0,04
+ 0.005
+ 0.005
± 0.05
± 0.03
± 0.05
Mechanical properties in the quenchedand tempered condition
d ≤ 16mm oder t ≤ 8mm
16mm < d ≤ 40mm 8mm < t ≤ 20mm
40mm < d ≤ 100mm 20mm < t ≤ 60mm
100mm < d ≤ 160mm 60mm < t ≤ 100mm
160mm < d ≤ 250mm 100mm < t ≤ 160mm
Re min (MPa)
785
735
685
635
540
Rm (MPa)
980-1180
930-1130
880-1080
830-980
740-880
A min. (%)
11
11
12
12
13
Z min. (%)
40
40
45
50
50
KV min. (J)
35
35
40
40
40
The Process As Follow: ingot → heat → forging → heat treatment(normalizing+tempering) → inspection → rough machining → UT → 2nd heat treatment → finishing machining → inspection . Quality Control: UT,MT,RT,PT,chemical composition test,mechanical property test,etc. Heat Treatment: Normalize,Quenching,Tempering,Anealled. Surface Treatment: painting,plating,polishing,black oxide,transparent anti-rust oil. Inspection: Besides our in-house inspecion, you could also choose a third party inspection. Standard: ANSI,ASTM,ASME,API,JIS,DIN,BS,EN,KS,UNI,SABS,GOST. Certificate: 1, Raw material certificate(material chemical compositon) 2, Heat treatment sheet report 3, Dimension inspection report 4, UT test report Packing: Seaworthy plywood packaged on stell pallets or as customer's request Delivery Date: Decided by the amount and dimensions of products. Usually we control the large diameter rings' delivery time within 5 weeks after we receive your formal order. Competitive Advantage: Quality control and management to the whole produce process, including ingot smelting,forging, heat treatment, machining and strictly final inspection prior to delivery.
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
