SUS420J2 Steel Forged Blocks for Plastic Mould Making

Equivalence
 
Chemical Composition (%)
 
Dimensions
 
Delivery Condition
EAF+LF+VD+(ESR), Forged, Unmachined or Machined surface, UT 100% Passed
We offer two conditions as
Annealed: Hardness≤235HB
Q+T: Hardness 33-38HRC or as customized
 
Characteristics
Martensite stainless steel, with good machincability and excellent corrosion resistance, polishability, and high strength and wear resistance after heat treatment.
 
Application
It is widely used for making plastic moulds and transparent plastic molds which require high load, wear resistance, and work under the action of corroding medium.
 
Forging Technique
 
Heat Treatment
Annealing
840 to 870°C
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air. Hardness after annealing: max. 229 HB.
           
Stress relieving
Approx. 650°C
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 - 2 hours.
 
Hardening
1000 to 1050°C / Oil, air
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 53-56 HRC
 
Tempering
100 to 200°C (212 to 392°F)
Slow heating to tempering temperature immediately after hardening / time in furnace
1 hour for each 20 mm of work piece thickness but at least 2 hours / cooling in air.
For average hardness figures to be obtained please refer to the tempering chart.

 
6. Delivery conditions
Quend 900 is delivered as quenched and tempered. Our Quend plates are supplied as standard in the shotblasted and painted condition. In order to maintain a good weldability and laser cutting performance, a low zinc silicate primer is applied. Plates can also be delivered unpainted.
 
7.  Heat treatment
The mechanical properties of Quend 900 has been obtained by quenching and tempering. For not losing the guaranteed
properties of Quend 900, the plate should not be used in applications requiring hot working and service temperatures above 550 °C.

Application:
Bozhong Group is a professional Hot Rolled wear resistant steel plate supplier, mainly supply Steel plate in grade NM400/450/500/550, JFE-EH360/400/500, DILLIDUR 500V/450V/500V, THYSSENKKRUPP XAR400/450/500...

Hot rolled wear resistant steel plate is high-strength and wear-resistant steel with favourable hardness and impact toughness. With wear plate you can extend the lifespan of machinery, decrease wear in structural components and save costs.
High strength abrasion resistant steel plate is utilised in various applications of mechanical engineering by, for example, the automotive, heavy lifting and transportation, and mining industries.

Quality Assurance:
Below inspection will be done in the production. Meantime, we can provide MTC when we ship the goods. 
(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 confirming 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