AISI4140 Steel Crank Shaft Forging/ Steel Crankshaft

Product Details
Customization: Available
Processing Object: Metal
Molding Style: Forging
Manufacturer/Factory, Trading Company

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  • AISI4140 Steel Crank Shaft Forging/ Steel Crankshaft
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Basic Info.

Model NO.
steel crank shaft forging
Molding Technics
Pressure Casting
Application
Machinery Parts
Material
Steel
Heat Treatment
Quenching
Surface Treatment
Polishing
Forging Tolerance
+/-0.1mm
Standard
ASTM
Certification
ISO 9001:2000, ISO 9001:2008
Od
From 200mm to 650mm
Wall Thickness
From 30mm to 150mm
Lengths
500-10000mm
Certificates
ISO,SGS,PED
Transport Package
as Per Customer′s Request
Specification
steel crank shaft forging
Trademark
steel camshaft
Origin
Jiangsu China
HS Code
73269090
Production Capacity
300tons/Month

Product Description


Name: Scm440 AISI4140 Q345 St52 S355jr Steel crankshaft /forging steel camshaft 

Equivalent grades 
GB DIN AISI JIS
42CrMo 1.7225 4140 SCM440
Chemical Composition 
C Si Mn Cr Mo P S
0.38-0.43 0.40max 0.60-0.90 0.90-1.20 0.15-0.30 ≤0.035 ≤0.035
Available size 
Round steel bar 60-800mm
Flat steel bar 25-400mm*200-800mm
Surface condition 
Black surface/ Grinded/ Machined
Hardness 
Annealed HBS 217 max
Characteristics 
4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied in quenched and tempered conditions. Very good machinability.
 High toughness. High creep strength. Repeated impact resistant capability.
Applications 
4140 Alloy Steel/SAE 4140 Steel Price is use to produce components with high requirements on toughness, e.g. gear wheels, pinions, 
connecting rods, parts for mechanical engineering .
Heat treatment 
Forging Heat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.
Annealing Heat to 830°C-850°C.Cool in furnace.
Normalizing Heat to 870°C-900°C.Cool in still air.
Stress Relieving Annealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.
Hardening Heat to 830°C-880°C. Quench in oil or polymer.
Tempering Heat to 450°C-700°C cool in still air. NB.  Tempering within the range 200°C-420°C  will result in temper brittleness and should be avoided.
Steel Grades We can Supply
Cold work tool steel 
DIN 1.2067, 1.2080, 1.2363, 1.2379, 1.2436, 1.2510, 1.2550, 1.2746, 1.2767, 1.2842, etc.
AISI L1, L3, D3, D2, D6, A2, A5, O1, O2, 6F7, etc.
JIS SUJ2, SKD1, SKD11, SKD12, SNCM2, DC53(DAIDO), etc.
Hot work tool steel 
DIN 1.2343, 1.2344, 1.2365, 1.2367, 1.2581, 1.2714, 1.2885, etc.
AISI H10, H10A, H11, H12, H13, H21, L6, S7
JIS SKD61, SKT4, etc.
Plastci mould steel 
DIN 1.2083, 1.2085, 1.2311, 1.2312, 1.2316, 1.2738, etc.
AISI 420, P20, P20+S, P20+Ni, etc.
DAIDO NAK80
High speed tool steel 
DIN 1.3343, 1.3355/ AISI M2, T1.
Alloy steel 
AISI/SAE 4140, 4130, 4340, 8620, 8640, etc.

 

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