Guangzhou Changfeng Steel Co., LTD
| Payment Terms | T/T, L/C |
| Supply Ability | 1000t/Mouth |
| Delivery Time | 15-20 days |
| Packaging Details | bulk packing/wooden packing |
| Diameter | 20-100mm |
| Length | 3000-6000mm |
| Hardness | ≤235HB |
| Technology | Annealed |
| Application | To make van, shaft, bolt of large dia steamer |
| Surface | Black surface |
| Brand Name | Changfeng |
| Model Number | 4340/EN24/40CrNiMo/1.6511/SNCM439 |
| Certification | ISO/ Mill Certificate |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000t/Mouth |
| Delivery Time | 15-20 days | Packaging Details | bulk packing/wooden packing |
| Diameter | 20-100mm | Length | 3000-6000mm |
| Hardness | ≤235HB | Technology | Annealed |
| Application | To make van, shaft, bolt of large dia steamer | Surface | Black surface |
| Brand Name | Changfeng | Model Number | 4340/EN24/40CrNiMo/1.6511/SNCM439 |
| Certification | ISO/ Mill Certificate | Place of Origin | China |
| High Light | carbon tool steel ，tool steel flat bar | ||
EN24/4340/1.6511 alloy tool steel bar for shaft with diameter 20-100mm
Chemical composition(%)
| C | Si | Mn | S | P | Cr | Mo | Ni |
| 0.37~0.44 | 0.15~0.35 | 0.5～0.8 | ≤0.035 | ≤0.035 | 0.60~0.90 | 0.15~0.25 | 1.25~1.65 |
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 850 degrees; coolant; oil; tempering temperature of 600 degrees; coolant: water, oil;
Steel annealing or high temperature tempering supply state Brinell hardness GBW is less than or
equal to 269.
Product:
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-10000000
Employee Number:
100~120
Ecer Certification：
Active Member
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct... Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Struct...
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