Model NO.: SKD61, H13, 1.2344, 4Cr5MoSiV1 Standard: AISI, ASTM, GB, JIS, DIN, BS Technique: Hot Rolled Surface Treatment: Black, Peeled, Turned,Grinded Special Use: Mold Steel Material Number: 1.2344 Delivery Condition: Hot Rolled, Forged, Eaf+Lf+Vd Shipping: by Sea, Air Forged Round Bar: Dia 60-600mm Length: 2000-6000mm Transport Package: Seaworthy Packing Origin: China Type:
Alloy Steel Bar Steel Grade: SKD61 Application: Structural
Steel Bar Alloy: Alloy Product Name: JIS SKD61 30mm Hot Work Tool
Steel Round Bar GB: 4Cr5MoSiV1 Delivery Term: Fob, CIF, CFR, Exwork, etc Hot Rolled Round Bar: Dia 8-130mm Payment Term: T/T, L/C Trademark: BOZHONG or customized Specification: Dia. 8-600mm, length: 2000-6000mm JIS SKD61 30mm / 50mm Hot Work Tool Steel Round bar for Hot Extrusion Mould Specification:
| Steel Grade: | SKD61 | Application: | Die Steel, Mould Steel |
| Shape: | Round bar | Standard: | AISI, DIN, JIS, GB |
| Dimension: | Φ10 - 600 mm | Surface: | Black, Peeled, Turned, Grinded |
| Technique: | Hot rolled, Forged | Ultrasonic Test: | 100% UT Passed |
Equivalence
| AISI / SAE | DIN / W.Nr | JIS | GB |
| H13 | 1.2344 | SKD61 | 4Cr5MoSiV1 |
Chemical Composition (%)
| C | Si | Mn | P | S | Cr | Mo | V |
0.32
0.42 | 0.80
1.20 | 0.25
0.50 | ≤
0.030 | ≤
0.030 | 4.50
5.50 | 1.00
1.50 | 0.80
1.15 |
Dimensions
| | Hot Rolled | Forged |
| Diameter (mm) | 8-130 | 60-600 |
| Length (mm) | 2000-6000 | 2000-6000 |
Delivery Condition
EAF+(ESR) or EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, Hardness≤235HB,
Black surface or Machined surface, UT 100% Passed
Characteristics
1. Air cooling hardened hot work tool steel, most widely used.
2. High toughness Good cold & thermal fatigue resistance.
3. Small distortion, deformation and oxide skin after heat treatment during air cooling.
4. Good resistance from the undermining of fusing Aluminum.
Applications
1. For making aluminum and copper alloy die casting mold when die cavity temperature
is below 600°C
2. For making forging die, forging press mold, mold hammer block for fine forging
machine uses.
Forging Technique
Heat
Temperature | Start Forging
Temperature | Finish Forging
Temperature | Cooling Method |
| 1120-1150 °C | 1050-1100 °C | 900-850 °C | Pit or Sand Cooling |
Heat Treatment
750 to 800°C (1382 to 1472°F)
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 68°F/hr) down to
approx. 600°C (1112°F), further cooling in air.
Hardness after annealing: max. 235 HB.
600 to 650°C (1112 to 1202°F)
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.
1020 to 1080°C (1868 to 1976°F)
Oil, salt bath (500 - 550°C / 932-1022°F), air
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness:
52 - 56 HRC in oil or salt bath,
50 - 54 HRC in air.
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.
It is recommended to temper at least twice.
A third tempering cycle for the purpose of stress relieving may be advantageous.
1st tempering approx. 30°C (86°F) above maximum secondary hardness.
2nd tempering to desired working hardness.
The tempering chart shows average tempered hardness values.
3rd for stress relieving at a temperature 30 - 50°C (86 to 122°F) be low highest
tempering temperature.
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 Platesteel 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:+86-21-6766-0089
Contact us if you need more details on Hot Rolled Steel Round Bar. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Forged Round Steel Bar、Round Steel Bar. If these products fail to match your need, please contact us and we would like to provide relevant information.
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