NOS411 Die Steel, Equal to 1.2343 ESR

NOS411 Die Steel For Hot Extrusion Die, Hot Forging Die, Plastic Mould
 
Features
NOS411, originates from SUPER technology and is a type of hot work tool steel with high quality. Its main features includes high purity, homogeneous annealing structure, excellent impact property.
NOS411 is applied for making hot extrusion die, hot forging die and large-sized plastic mould which has high demand on toughness, and also need polishing or dermatoglyph treatment.
NOS411 is strictly inspected as per standard NADCA#207-2011, and other properties also can be tested as customers' requirement.
 
Equivalence
 
Chemical Composition (%)
 
Dimensions

Physical Property (Q+T to be 45HRC)
 
Mechanical Property
 
Heat Treatment
Soft Annealing
Heating steels upto 850ºC in protective atmosphere; after soaking, then have cooling in the furnace at the rate of 10ºC/hr; after temperature comes down to 650ºC, finally have air cooling.
           
Stress relieving
Stress Relieving should be done on the die after rough machining, heating upto 650ºC, heat preservation for 2 hours; Slow cooling down to 500ºC, further air cooling.
 
Hardening
Refer to Hardening Diagram,
Preheating in two steps as per A: 650ºC and B: 850ºC
Austenization as per C: 990-1010ºC
Direct cooling as per D, or Sectionalized cooling as per F:500-550ºC
 
                  Hardening Diagram                Tempering Diagram
 
Tempering
Refer to Tempering Diagram. Choose the proper tempering temperature for required hardness. For die casting mould, temper at least 3 times.
For other application of hot working or plastic making, temper at least 2 times. (We recommend to temper over 550ºC for 2 hours min.. After tempering, it must need cooling down to room temperature.)
Tips: To avoid the temper brittlement, don't temper in 425-550ºC.
 
Hardness: HRC                    Residual Austenite %
      Tempering Temperature (2h+2h) ºC
 
 
Tips
1. Holding time means the duration of die steel from total heating to Austenitization.
2. During hardening process, steel must be heated to avoid oxidation or decarburization.
3. Steels need to be tempered immediately when temperature gets down to be 50-70ºC.
4. To get excellent property for the die, the quenching speed should be as fast as possible, but should avoid the case of being out of shape or cracks.
 
If you need more details, please refer to "Heat Treatment Manual" or consult us.
 
Quenching Holding Time and Thickness

 

Product Application


 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