China steel bar alloy steel Special Steel

SCR440/40Cr Mechanical Structural Special Alloy Steel Tool Packaging Round Bar
1,Chemical composition(%):CSiMnSPCrNiCu0.37-0.440.17-0.370.70-0.90<=0.040<=0.0350.80-1.10<=0.30<=0.30
2,Application:
ASTM5140 is the most commonly used alloy structural steel, tensile strength, yield strength and hardenability are higher than the 40 steel, but the weldability is limited, there is a tendency to crack.
ASTM5140 is used for more important quenching and tempering parts, such as parts under variable load, medium speed and medium load.3,Properties:1)5140ismedium carbon tempered steel, cold heading die steel;2)The steel is moderate in price and easy to process. It can obtain a certain toughness, plasticity and wear resistance after proper heat treatment;3)Normalizing can promote the spheroidization, improve the cutting performance of hardnNon Woven Bag ess less than 160HBS of blank;4)The steel has the best comprehensive mechanical properties at the temperature of 550~570;5)The steel is a high degree of quenching, suitable for high frequency quenching, flame hardening and other surface hardening treatment.
4,Heat treatment specification:
Quenching 850 degree, oil cooling;
Tempering at 520 degrees C, water cooling, oil cooling.5,Delivery condition:
Hot rolled or forged/ peeled or black surface/Power Transmission & Transformer annealed or Q+T.6,Delivery time:
Forabundant stock, 15-20 days.
For customized products, 30-50 days.7,Our service:1)Sizes, materials and others are all at your requirements and can be changed;2)Price varies on materials, dimensions, finish craft and different payments;3)We are direct manufacture in machinery manufacturing work with experience of several decades;4)Detail production design will be madeOther Manufacturing & Processing Machinery according to information you offered;5)We have adequate inventory, so that we can quick delivery;6)The most important thing is that we have advanced eTransmitter quipment.
Corner of factory: