BS EN 42crmo4 Alloy Steel


is a common chromium-molybdenum steel that usually used after quenched
and tempered, with high intensity, high hardenability. BS EN 42CrMo4
round steel has better performance than 34CrMo4 steel due to the carbon
and chromium content is higher. 42CrMo4 alloy steel


has higher strength and hardenability. The 42CrMo4 alloy material also
has high fatigue strength and good low-temperature impact toughness. The


temper brittleness is not obvious.

 

Although 42CrMo4 steel is more expensive than 41Cr4 steel, it is more


preferable in terms of material properties. EN 42CrMo4 alloy
engineering steel materials have been widely used in automotive driving
elements. Otai Steel is able to supply you prime quality of 42CrMo4
alloy steel materials with wide range.

1.42CrMo4 Alloy Steel Supply Range

42CrMo4 Round bar Sizes: 80mm - 1200mm
Steel 42CrMo4 Flat and Plate: 10mm-1500mm thickness x 200-3000mm width
Other steel shape and sizes available according to your requirements.

Surface condition: Black, rough machined, peeled, turned or other requirements according to your requirements.

2.BS EN 42CrMo4 Alloy Steel Relevant Specifications and Equivalents

3.42CrMo4 Alloy Steel Chemical Composition

4. DIN 42CrMo4 Alloy Steel Mechanical Properties

5. Heat Treatment of 42CrMo4 Steels

Annealing of 42CrMo4 Steels

• Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;

• Cool slowly in the furnace to the temperature 480°;

• Complete annealing the steel in the air.

Quenched and Tempered (Q+T)

• Heat 42CrMo4 steel slowly to 880°C;

• Soak at this temperature then quench in oil;

• Temper as soon as 42CrMo4 steel reach room temperature (20°C);

• Heat uniformly to the suitable temperature of 560°C;

• Withdraw the 42CrMo4 material from the furnace and cool in the air.

6. Forging of 42CrMo4 Alloy Steel

• Preheat 42CrMo4 engineering steel uniformly and slowly;

• Increase the forging temperature up to 1150-1200°C.

• Always keep the forging temperature above at least 850°C

7.Weldability

Engineering


steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is
strongly recommended; the upper limit should not be exceeded because of
risk for deterioration of the chrome layer.

Alloy steel 42CrMo4
can be friction welded. However, precautions are necessary so as to
limit the formation of undesirable microstructures in the welded zone.

8.Application of 42CrMo4 Alloy Steels

EN


42CrMo4 alloy steel is widely used for engineering steel purpose, such
as: making various kinds of machinery, automobile, mining spare part,
the gearwheel of the engine, the driving gear of supercharger, the
connecting rob, the pinchock under the high pressure, parts for power
train applications, cold formed fastener components, shafts, gears,
drill collars for the oil exploration, etc.

 

 Quality Assurance

Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT; 
(5) eddy current flaw detection-ET

Company information:

Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
 
steel coil
steel plate
steel sheet
steel bar/rod
    steel round bar
    steel flat bar
    steel square bar
steel pipe/tube ( welded or seamless )
    steel round pipes 
    steel square pipes
    steel welded tubes
    steel seamless tubes
steel strip
steel beam
steel angle
steel channel
steel flange
Steel wire
 
 
Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.
 
We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.
 
We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.
 
Special steel includes as below:
Boiler and pressure vessel steel
Pipeline steel
Bridge steel
Nuclear power steel
Structural steel
Die steel
High strength steel
Abrasion resistant steel
Weathering, corrosion resistant and fire resistant steel
High rise building steel
Shipbuilding and offshore engineering steel
 
FAQ: 
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price. 
 
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
 
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
 
Q: What is the payment term?
A: T/T or L/C.
 
Q: Can you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
 
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come. 
 Customer visiting :
 
Warmly welcome! Pick up your phone and Call us!
Send us the inquiry here!
We will reply you at the first time.

Contact US:
Annie Wang 
Direct Line:+86 - 21 - 5762 9195