50CrVA spring steel

Standard: GB / T 1222-1984
● Features and Scope:
Good mechanical properties and process performance, high hardenability, adding vanadium steel grain refinement, reduce heat sensitivity, improved strength and toughness, high fatigue strength, yield ratio is high, but poor welding cold plastic deformation due to low. Is a relatively high spring, as a large section of the important spring and high-load operating temperature <300 ℃ of the valve spring, piston spring, safety valve spring
● Chemical Composition:
Carbon C: 0.46 ~ 0.54
Si Si: 0.17 ~ 0.37
Mn Mn: 0.50 ~ 0.80
Sulfur S: ≤0.030
Phosphorus P: ≤0.030
Chromium Cr: 0.80 ~ 1.10
Ni Ni: ≤0.35
Copper Cu: ≤0.25
Vanadium V: 0.10 ~ 0.20
● Mechanical Properties:
Tensile strength σb (MPa): ≥1274 (130)
Yield strength σs (MPa): ≥1127 (115)
Elongation δ5 (%): ≥10
Reduction of area ψ (%): ≥40
Hardness: hot, ≤321HB; Cold Drawn + heat, ≤321HB
● Heat treatment and microstructure specifications:
Heat treatment specifications: quenching 850 ℃ ± 20 ℃, oil cooling; tempering 500 ℃ ± 50 ℃ (when special needs, ± 30 ℃).
● Delivery status: hot-rolled steel to heat treatment or heat treatment delivery, cold drawn steel to heat treatment delivery.

50CrVA Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%) of the 50CrVA

C(％)	Si(％)	Mn(％)	Cr(％)	V(%)
0.47-0.54	0.17-0.37	0.50-0.80	0.80-1.10	0.10-0.20

Mechanical properties of grade 50CrVA

Yield Rp0.2 (MPa)	Tensile Rm (MPa)	Impact KV (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	HBW
386 (≥)	139 (≥)	33	33	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	222

Physical properties of grade 50CrVA

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm
154 (≥)	536 (≥)	34	41	44	Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2	-	-	-
562	657	375	-	-	-

50CrVA Range of products

Product type	Products	Dimension	Processes	Deliver Status
Plates / Sheets	Plates / Sheets	0.08-200mm(T)*W*L	Forging, hot rolling and cold rolling	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar	Round Bar, Flat Bar, Square Bar	Φ8-1200mm*L	Forging, hot rolling and cold rolling, Cast	Black, Rough Turning, Shot Blasting,
Coil / Strip	Steel Coil /Steel Strip	0.03-16.0x1200mm	Cold-Rolled & Hot-Rolled	Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes	Seamless Pipes/Tubes, Welded Pipes/Tubes	OD:6-219mm x WT:0.5-20.0mm	Hot extrusion, Cold Drawn, Welded	Annealed, Solution and Aging, Q+T, ACID-WASHED

Corresponding us brand number: G61500

Corresponding Japanese brand: SUP10

Corresponding German brand number: 50CrV4

British counterpart: 735A51

Corresponding French brand number: 50CV4

If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

1. Stock view

   

2. Processing and Technology for heating processing

Cutting processing      Quenching              Tempering                  Annealing

       

3. Quality testing

1.      Inspection Institution

Shanghai Fuda Testing Technology Group Co., LTD. Nanjing Branch  

Focus on analysis, testing, testing, r & D four service areas. Analysis fields include component analysis, formula analysis, failure analysis, structure analysis, methodology development and validation, raw material quality control/evaluation, consistency evaluation, feature analysis and other directions; The testing field involves physical and chemical properties testing, toxic and harmful substances testing, flame retardant performance testing, reliability testing and other directions; The testing field involves energy spectrum, electron microscope, spectrum, chromatography, mass spectrometry and other directions; The r&d field involves formula development, formula upgrading, formula customisation, cooperative research and development and other directions.

Beijing Zhongke Chemical Technology Research Institute 

It is a chemical technology research institution based on scientific research and testing. They adhere to paying equal attention to basic research and applied research, and combining applied research and technology transformation, developing into a comprehensive research institute characterised by "task-oriented disciplines". Approved by the relevant national departments, the company has become a third-party analysis and testing technology service unit, and has obtained CMA qualification certification. It has carried out research and development and design, analysis and testing, test and verification, generic processing, information and intellectual property services, providing public services for innovation of technology-based enterprises. Supported by the government innovation Fund, the institute has been awarded as a national high-tech enterprise.

   

2.Inspection Machining

     

   Metal composition testing machine                      Computerised Materials Torsion Testing Machine                Metal bar composite rod bending tensile strength testing machine

       3. Material test certificate

     4. Packaging 

    In the steel export activities, we also need to pack the steel to prevent the steel from being scattered in the transportation process. In the hoisting process, it is necessary to lift the steel. So steel is very necessary in the export process. Below is the picture of packaging：

According to the requirements of the state of steel materials, the use of binding, bare, frame, pallet.

Packing standard: according to the following national standard requirements (the parts beyond the requirements will be specified separately)

GB／T191 packaging-pictorial marking for handling of goods

GB／T4857 (all parts) basic test for transport packages

GB／T4879 rustproof packaging

GB／T5048 damp-proof packing

GB／T7350water-proof packing

GB／T8166 Package cushioning design

GB/T4892-1996  Hard straight square transport packaging size series

GB/T13201-91 Cylinder transport package size series

 GB/T16471-1996Design and make the size limit of transport package 

5. Logistic

       

               By SEA                                                     By Air                                                           By Express

If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

1. Company profile

Luoyue Precision Metal established in 2018, is a leading Stockists and global distributor for Metal Raw Materials like Steel/Aluminum/ Stainless steel/Copper/ Nickel Rods, Bars, Plates, Sheets,Pipes, fittings, fasteners, Inconel alloys, Wire and Wire-Mesh to customers from aerospace, automotive, electronics, precision manufacturing, ordnance, marine, shipbuilding, oil & gas, power plant and construction.

The company has a high-precision, high-efficiency modern processing site, CNC machine tools and complete testing and inspection technology, and introduces international advanced technologies.

           2. Certificates. (Business certificate/ISO9001/Trading certificate/SGS/FormE)

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          3. Our customers 

                 Customer visits 

           4. Past Inquiry

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If you need product information or price, please fill in your contact information in the form below, we will usually contact you within 12 hours. You could also email me info@lyapm.com to get prompt reply.

Customer Feedback:

           Comments

           HOT FAQ:

Q1. Where is your factory ?

A1: Our company’s processing center is located in Shanghai, China.Which is well equipped with kinds of machines, such as laser cutting machine,mirror polishing machine and so on.We can provide a wide range of personalized services according to the customers’ needs.

Q2. What are your company's main products ?

A2: We are professional one-stop meta supplier for Aluminium/ steel/ stainless steel/ copper etc.  

Q3. How do you control quality ?

A3: Mill Test Certification is supplied with shipment, Third Party Inspection is available.

Q4. What are the advantages of your company ?

A4: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q5. How many coutries you already exported ?

A5: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt,Turkey, Jordan, India, etc. We are based in Shanghai, China, start from 2019,sell to Southeast Asia(50.00%),South America(10.00%),North America(5.00%),Eastern Europe(5.00%),Eastern Asia(5.00%),Northern Europe(5.00%),Domestic Market(15.00%),Mid East(10.00%). There are total about 11-50 people in our office.

Q6. Can you provide sample ?

A6: Small samples in store and can provide the samples for free.

Customized samples will take about 5-7days.

Q7Could we visit your factory?  

A7: Sure, we welcome you to visit the factory , check our production lines and know more about our strength and quality.  

Q8: Do you have quality control system?  

A8: Yes, we have ISO, BV, SGS certifications and our own quality control laboratory.  

Q9: Can you arrange the shipment for us?  

A9: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best  price with earliest vessel and professional service.

Q10: How long is the delivery time?  

A10: Generally it is 7 days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.  

Q11: Can I get some samples?  

A11: We are glad to provide free samples to you, but we do not offer the freight.  

Q12: What is your after-sale service?  

A12: We provide after-sale service and offer 100% guarantee on our products.  

Q13: What is your MOQ?  

A13: Depend on the request material, sometimes for customized one have MOQ.

Q14: why should you buy from us not from other suppliers?

Luoyue precision metals (Shanghai) Co., Ltd. is located in Shanghai, China. It is one of the most professional metal material suppliers in China, providing nearly 100 kinds of metal materials, from raw materials to CNC processing

Q15: what services can we provide?

Accepted Delivery Terms: FOB, CFR, CIF, EXW, CIP, DDP, Express Delivery

Accepted Payment Currency:USD,EUR,JPY,CAD,GBP,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A

Language Spoken:English,Chinese,Spanish

Supply Ability

500 Ton/Tons per Month

Packaging & Delivery

Airworthy package. Waterproof cloth, wooden case, craft paper and steel belt packing.

Port: shanghai

Exhibition

Production Workshop

Package & Shipping

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