GB/T 3Cr3Mo3V Hot Worked Mold Steel

1:3Cr3Mo3V steel introduction

1. High Toughness and Impact Resistance

• Applications: 3Cr3Mo3V steel is often used in manufacturing heavy-duty tools and components that require high toughness, such as forging dies, hammer heads, and industrial cutting tools. The steel’s toughness helps it withstand significant impact and mechanical stress without cracking.

2. Excellent Wear Resistance

• Applications: The inclusion of vanadium (V) and molybdenum (Mo) in the alloy enhances wear resistance, making it suitable for parts exposed to abrasive conditions. This makes 3Cr3Mo3V ideal for applications like wear plates, die-casting molds, and components in mining equipment that experience high levels of wear.

3. Good Hardenability

• Applications: 3Cr3Mo3V has good hardenability, meaning it can achieve a high level of hardness throughout its thickness during heat treatment. This characteristic is crucial for producing large components like shafts, gears, and bearings that require uniform hardness and strength.

4. High Fatigue Resistance

• Applications: The steel’s composition provides high resistance to fatigue, making it suitable for parts that undergo cyclic loading or repeated stress. Examples include crankshafts, camshafts, and other engine components in automotive and aerospace industries.

5. Resistance to Tempering

• Applications: 3Cr3Mo3V steel maintains its hardness even after tempering, which is important for tools and components that need to retain their hardness after heat treatment. This makes it valuable in the production of high-performance cutting tools and extrusion dies.

6. Versatility in Machining

• Applications: The alloying elements, particularly chromium (Cr) and molybdenum (Mo), contribute to good machinability, allowing the steel to be effectively shaped and finished into precision parts. It’s used in the manufacturing of molds, dies, and other components where precision and surface finish are important.

7. Applications in Aerospace and Defense

• Applications: Due to its high strength, toughness, and resistance to wear and fatigue, 3Cr3Mo3V is also utilized in the aerospace and defense industries. Components such as landing gear, structural parts, and other critical components benefit from the steel’s properties.

2: 3Cr3Mo3V steel equivalent

3:3Cr3Mo3V steel chemical composition

4: 3Cr3Mo3V  steel mechanical properties

    The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.  

5: 3Cr3Mo3V  steel overviews

6.Heat Treatment

Annealing 

    Heating slowly and uniformly to 750~790℃, furnace cooling to
600℃ at a rate 10~20℃/hr, further cooling in air. Hardness after annealing: max. 205 HB. Suitable precautions must be taken to prevent excessive carburization or decarburization.

Stress relieving

    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.

Hardening

    DIN 1.2365 steel is a very deep hardening steel, and although oil quenching may be used where maximum hardness is required, air hardening is recommended for most applications. The use of salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening spent pitch temperature employed is usually in the range of 982°C -1037°C.

    1010 to 1050°C (1850 to 1922°F) Oil, salt bath (500-550°C / 932-1022°F), Holding time after temperature equalization: 15 to 30 minutes. Obtainable hardness: 52 -56 HRC

Tempering

    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 hard-ness. The tempering chart shows average tem-pered hardness values. 3rd for stress relieving at a temperature 30 -50°C (86 to 122°F) below highest tempering temperature

 7: Delivery condition

For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned. 

For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.

For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface. 

Hongxin Mold Tech Co.,Ltd. owns 1 set of Hot Rolling Production Line at size range  flats 8-80*210-710mm, rounds 16-50mm Dia.

12 sets of Hydraulic Forging Hammers from Power 560kgs to 6000kgs which could cover flats 40-300*210-710mm.

8 sets of EF+LF+VD

5 sets of ESR

9 sets of Milling Machines

10 sets of Turning Lathes

6 sets of Precision Milling Machines.

CERTIFICATION: GB/T19001-2016/ISO9001:2015

Products' List

Q1:Are you trading company or manufacturer ?
We are the biggest tool steel factory at Daye & Huangshi. We can provide a wide range of steel products.

Q2:What is alloy steel round bar export packing?

Usually bundling for large diameter,small diameter bars in bulk or as customer's demand.

Q3.What is your MOQ?

We accept small order,if it is stock,any quantities can be accepted.

Q4.What is your lead time?

Depends actual order,around 20-35 days,or negotiation.

Q5.Can you supply sample?

Yes,we can.Sample fee according to your size.

 Q6:What certificates do you have?

ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate

Q7: How can I get your quotation as soon as possible?
The email and fax will be checked within 24 hours,meanwhile,the Skype,Wechat and WhatsApp will be online in 24 hours.Please send us your requirement,we will work out a best price soon.

Any interests in our company and products, please feel free to contact us for quotation. We warmly welcome you to our factory.