Chemical Composition (in weight %)

Description
Alloy special structural steels. Cr-Mo-steels with > 0.35% Mo.

Applications
High-temperature structural steel: Collectors, water boiler and superheater tubes (530^oC).

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 210
Density [g/cm³]: 7.85

Soft Annealing
Heat to 680-720^oC, cool slowly in furnace.

Hardening
Harden from a temperature of 910-940^oC followed by oil or air quenching.

Tempering
Tempering temperature: 650-720^oC.

Mechanical Properties in Hardened and Tempered Condition

0.2 % Proof Stress (N/mm²) vs. Temperature

1 % Creep Limit (N/mm²) vs. Temperature (^oC)

Creep Rapture Strength (N/mm²) vs. Temperature (^oC)

Forging
Hot forming temperature: 1100-850^oC. 
Excellent characteristics
(1) The heat treatment hardness of DC53 is higher than that of SKD11:

DC53 high temperature (520-530 ºC) after tempering can reach 62-63HRC high hardness, therefore, the strength and wear resistance of DC53 can exert its performance more than SKD11

(2) The toughness is twice as high as SKD11:

Among the tool steels for cold working, DC53 has the highest toughness, so it can prevent cracking and chipping of tools and molds.

Cracks and cracks appear, increasing the service life;

(3) DC53 can improve the huge carbide of SKD11:

The size of DC53's huge carbides is improved to less than 1/3 of SKD11, so it can prevent the chipping (Chipping) that causes mold damage.

Practical features
(1) Machinability and abrasion are better than SKD11, so the tool life is longer and the number of processing hours is less.

(2) The quench hardening energy is higher than SKD11, so it can improve the defect of insufficient hardness during vacuum heat treatment.

(3) The high temperature tempering can reduce the residual stress and eliminate the residual austenitic iron, which can prevent the cracking and deformation of the wire cutting process.

(4) The surface hardness after surface hardening is higher than that of SKD11, so the performance of the mold can be improved.

(5) Since the preheating and postheating temperatures are lower than SKD11, the repair welding operation is relatively simple.

Machinability
No data.

Forms manufactured: Please see the Dimensional Sales Program. 

Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

What we can offer?
 
We offer a wide range of steel products in a wide variety of dimensions and executions, acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
 
Shape Available
Solid round bar
Flat bar
Square bar
Hexagon bar
Block
Plate
Sheet
Wire rod
Strip

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

Our Company:

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.
 


Our Team:

Our Service For You
Pre-sale Service
1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices. 
3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service. 
6. We have 8 year experience of design, manufacture and sell lingerie, we cherish every order from our honor.

After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.

After-sale choose
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
 

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. 

contact:

Name: Alicia Liu
Derect Line: 021-67897511