Energy Steel Industrial Co., Ltd.
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FOCUS ON QUALITY, OFFER BEST PRODUCTS.
size :
Diameter :80 to 600 mm
Length : 1000 to 9000 mm
4150 steel also sold under the name AISI/SAE 4150, is a medium/high-carbon alloy steel that contains chromium and molybdenum. 4150 steel is known for its increased hardenability and mechanical properties. The machinability of 4150 steel bar is better in the annealed form. This tough steel alloy offers uniform strength, wear resistance, and great hardness. It is important to note that Alloy Steel 4150 must be heat-treated to be suitable for machining. The weldability of Alloy Steel 4150 is high and can be achieved through most commercial methods. The finest of grain size relates directly with the temperature of forging.
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
|
0.48-0.53 |
0.15-1.35 |
0.75-1.00 |
max 0.035 |
max0.040 |
0.8-1.1 |
0.15-0.25 |
|
Diameter (mm) |
≤16 |
16-40 |
40-100 |
100-160 |
160-250 |
|
Yiled
Strength |
≥900 |
≥780 |
≥700 |
≥650 |
≥550 |
|
Tensile
Strength |
1100-1300 |
1100-1300 |
1000-1200 |
900-1100 |
850-1050 |
|
Elongation(%) |
≥9 |
≥10 |
≥12 |
≥13 |
≥13 |
|
Impact(J) |
≥30 |
≥30 |
≥30 |
≥30 |
≥30 |
|
Hardness（HB) |
331-380 |
298-359 |
271-331 |
253-298 |
240-286 |
Alloy Steel 4150 is used in the aerospace, defense, oil and gas, and automotive industries for products such as:
Shafts
Valves
Sprockets
Aerospace parts
Axles
Spindles
Forged gears
Soft Annealing
Heat the steel to 680-720°C uniformly and slowly
hold suitable time for the steel to be thoroughly heated
cool slowly in furnace
maximum Brinell hardness of 248.
Normalizing: 840-860°C,cool in air
Hardening:820 – 860°C,oil quench
Tempering:540-680°C,cool in air
Annealed at 815°C: 197 HB
Normalized at 870°C: 321 HB
Oil quenched, fine grained, tempered at 205°C: 530 HB
Oil quenched, fine grained, tempered at 315°C: 495 HB
Oil quenched, fine grained, tempered at 425°C: 440 HB
Oil quenched, fine grained, tempered at 540°C: 370 HB
Oil quenched, fine grained, tempered at 650°C: 290 HB
1 Hot rolling process
2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Oil-hydraulic; Precision-forging
1 +A: Annealed (full/soft/spheroidizing)
2 +N: Normalized
3 +NT: Normalized and tempered
4 +QT: Quenched and tempered (water/oil)
1 Black Surface
2 Grounded: Bright but rough ; Not precision
3 Machining for plate: Bright and precision; Little turning scar
4 Peeled/Turned: Bright and precision; Little turning scar
5 Polished: Very Bright and precision size; Not turning scar
1 Cutting: Small pieces
2 CNC Machine: Produce as your drawing
3 Package: Bare/Nylon/Canvas/Wooden
4 Payment:T/T, L/C, O/A(request credit)
5 Transport:FOB/CFR/CIF/DDU/DDP (train/ship/Air)
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
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