Categories | Engineering Steel Bar |
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Brand Name: | CF Steel |
Model Number: | 1.6511 / SAE4340 / SNCM439 |
Certification: | ISO / Mill Ceritificate |
Place of Origin: | China |
MOQ: | 3tons |
Price: | 850-1000 |
Payment Terms: | L/C, T/T |
Supply Ability: | 1000 Mt/month |
Delivery Time: | 10-15 days for stock |
Packaging Details: | standard/customized |
Material: | alloy mechanical steel |
Shape options: | Round bar / Flat bar |
Heat treatment: | Annealed / Q+T |
Smelting process: | LF+VD |
Delivery condition: | Forged/ hot rolled |
Quality Assurance: | 100% UT passed |
Surface conditons: | Black |
SAE4340/ 1.6511 Alloy Engineering Steel Round Bar For Shaft /Bolt/Hummar Shank
Introduction:
Grade 1.6511 / SAE4340 has the characteristic of high strength, toughness and good hardenability and anti-overheating stability, but the white point sensitivity is high, and there is temper brittleness.The welding property is poor, before welding, it needs to be preheated by high temperature. After welding, the stress should be eliminated and used after adjustment.
Chemical composition(%):
C | Si | Mn | S | P | Cr | Mo | Ni |
0.38~0.43 | 0.15~0.35 | 0.60~0.80 | ≤0.040 | ≤0.035 | 0.70~0.90 | 0.20~0.30 | 1.65~2.00 |
Application:
Used as require good toughness, high strength, as well as the
important conditioning of large size, heavy machinery such as high
load of axial, turbine shaft, larger than 250 mm in diameter of
helicopter rotor shaft, turbojet engine turbine shaft, blade, high
load of transmission parts, fasteners of the crankshaft,gear, etc.
It can also be used for operating temperature over 400 ºC of rotor
shaft and blade, etc. and after nitriding processing can also be
used to make special performance requirements of the important
parts, after low temperature tempering or can be used for
ultra-high strength steel after thermal quenching.
Features:
Excellent hardenability, high toughness and good heat-resistance and
fatigue-resistance.
Heat treatment:
Quenching | Tempering | ||
Heating temperature/℃ | Cooling | Heating temperature/℃ | Cooling |
850 | Oil cooling | 600 | Water or oil cooling |
Hardness | ≤269HB |
Mechanical properties:
Tensile strength sigma b (MPa): ≥980(100),
The elongation is delta 5 (%): ≥12,
The cross-sectional shrinkage of psi (%): ≥55.
Impact work Akv (J) is greater than 25, impact toughness value
alpha kv (J/cm2): ≥98 (10).
Delivery time:
Hot rolled or forged, black surface.
For abundant stock, 15-20 days.For customized products, 30-50 days.
Our main products | |
Platic mould steel: | S50C, P20, P20+Ni, P21, 420 |
Hot work mould steel: | H13/1.2344, H21/1.2581 |
Cold work mould steel: | D2, D3, O1/1.2510 |
Alloy steel: | 1.7035, 1.7225, En31, 1.6523 |
High speed steel: | M2/1.3343, T1/1.3355, M35, M42 |
Product products:
Hot sale products for plastic mould Steel | |||||||||
STANDARD/GRADE | Steel Plate Size(mm) | Round bar Size(mm) | Technics | ||||||
DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length | |
1.1210 | SAE1050 | S50C | 50# | 10-1000 | 155-2200 | 3000-6000 | 10-350 | 3000-6000 | Hot Rolled |
1.1191 | SAE1045 | S45C | 45# | 10-700 | 155-2200 | 3000-6000 | 10-300 | 3000-6000 | |
1.2311 | P20 | PDS-3 | 3Cr2Mo | 12-800 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | Forged, Hot Rolled |
1.2738 | P20+Ni | - | 3Cr2NiMnMo | 21-1000 | 155-2200 | 2000-6000 | 20-200 | 2000-6000 | |
1.2083 | 420 | - | 4Cr13 | 12-500 | 155-1200 | 2000-6000 | 12-300 | 3000-6000 |
Hot sale products for hot / cold work mould Steel | |||||||||
STANDARD/GRADE | Steel Plate Size(mm) | Round bar Size(mm) | Technics | ||||||
DIN | AISM | JIS | GB(China) | Thickness | Width | Length | Diameter | Length | |
1.2344 | H13 | SKD61 | 4Cr5MoSiV1 | 16-500 | 155-500 | 2000-6000 | 16-200 | 3000-6000 | Forged, Hot Rolled |
1.2379 | D2 | SKD10 | SKD10 | 6-200 | 155-810 | 2000-6000 | 10-180 | 3000-6000 | |
1.2080 | D3 | SKD1 | 3Cr2Mo | 10-200 | 155-810 | 2000-6000 | 10-180 | 3000-6000 | |
1.2510 | O1 | SKS3 | 9CrWMn | 10-200 | 155-810 | 2000-6000 | 20-200 | 3000-6000 |
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