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DIN EN 20CrMo4 (1.7321) Alloy Steel Bar / Rod

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DIN EN 20CrMo4 (1.7321) Alloy Steel Bar / Rod

DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod
DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod

Grande immagine :  DIN EN 20CrMo4 (1.7321) Alloy Steel Bar / Rod

Dettagli:
Luogo di origine: Cina continentale
Marca: UST
Certificazione: ISO 9001:2008
Numero di modello: En 20CrMo4
Termini di pagamento e spedizione:
Quantità di ordine minimo: 3 tonnellate metriche
Prezzo: USD 800-2000 / Metric Ton
Imballaggi particolari: In imballaggio standard dell'esportazione e materiale in condizione di navigare con il pacco rettang
Tempi di consegna: 15-35 giorni
Termini di pagamento: L/C, T/T, D/A, D/P
Capacità di alimentazione: 1000 tonnellate metriche al mese
Descrizione di prodotto dettagliata
Matrial: lega di acciaio standard: GB, ASTM, BACCANO, JIS
Grado: 20CrMo4 (1,7321) Diametro: 4-1600mm
Lunghezza: Inferiore a 16 metri Forma: tondino
Tecniche: Trafilato a freddo; Laminato a caldo; Laminato a freddo; Forgiato superficie: Nero, luminoso, lucidato, sbucciato, o su richiesta
Prova ultrasonica: 100% UT passato Elaborazione: Temprato o estiguuto e temperato fornito
Estremità: Estremità smussata e normale come richiesto Ispezione di qualità: SGS, la BV ecc.
Servizio: Il servizio di taglio e l'ispezione dei terzi è fornito
Evidenziare:

hexagonal steel bar

,

flat steel bar

INTRODUCTION

 

One of the most popular and widely used carborizing steels available. 20MoCr4 is a hardenable chromium, molybdenum, nickel low steelalloy steel often used for carburizing to develop a case-hardened part. This case-hardening will result in good wear characteristics.

 

APPLICATIONS

 

Gears, shafts and other applications where a hard carborized case and a tough core are desired.

 

SUPPLY RANGE OF of EN 20CrMo4 1.7321
 

-Dimension: Diameter 4-1600 mm, any length below 16 meters

-Delivery Conditions:

Cold drawn: 4-100 mm

Peeled: 30-160 mm

Grinded: 4- 600 mm

Turned: 130-1200 mm

Hot rolled: 12-320 mm

Hot forged: 130-1600 mm

-EAF+(ESR) or EAF+LF+VD+(ESR)

-HOT rolled; Cold rolled; Forged; Cold Drawn

-Heat Treatment: Untreated, Annealing, N+T, Q+T

-Smelting: EAF+LF+VD (+ESR)

-Surface Finish: Black, Rough Machined, Peeled, Turned or upon request

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)

 

DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod 0

 

Standard

 

ASTM A213; ASTM A335; ASTM A519; ASTM A106; ASTM A29; JIS G3462; JIS G3458; JIS G3444; JIS G4053; DIN17175; DIN1629; DIN2391; GB/9948, GB/6479; GB/T8162; GB/T8163; GB/T 3077; EN 10297; EN 10084; EN 10083; ISO 683/11; IOS 683/10; IOS 683/1; etc.

 

 

Chemical Requirements, Composition, %

 

C Si Mn P S Cr Mo
0.17-0.23 max 0.4 0.7-1.0 max 0.035 max 0.035 0.3-0.6 0.4-0.5

 

 

20CrMo4 - General Mechanical Properties

 

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
481 (≥) 945 (≥) 33 11 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

 

 

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

 
DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod 1

 

 

PROCESSING

 

Soft Annealing
Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 207.

Heat Treatment

 

Treatment Temperature Cooling
Case hardening 880-980oC Oil (water), hot bath 160-250oC
Carburising 880-980oC Oil (water), hot bath 160-250oC
Direct hardening 860-900oC Oil, hot bath 160-250oC
Core refining 860-900oC Oil, hot bath 160-250oC
Core refining 780-820oC Oil, hot bath 160-250oC
Tempering 150-200oC Air

 

Hardenability Diagram

Forging
Hot forming temperature: 1050-850oC.

Machinability
Machining is done prior to carburizing to within as close a tolerance as possible. Finish machining, after heat treatment and/or carburizing, should be at a minimum so as not to impair the hardened case of the part. Machining may be done by conventional means prior to heat treatment - after carburizing machining is usually limited to grinding.

Welding
The alloy may be welded by conventional methods, usually gas or arc welding. Preheating at 200oC is beneficial and subsequent heating after welding is recommended - consult the approved weld procedure for the method used.

Cold working
The alloy may be cold worked in the annealed condition by conventional methods. Cold working, as with machining, should be done to as close a tolerance as possible before heat treatment or carburizing.

DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod 2

 

What we can offer?

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-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

 

Our Advantages

  • High mechanical property and quenching, enable the surface share equal hardness after deal with it
  • Good polishing and low roughness
  • Making the heat-treatment to harden condition before using it
  • Competitive price
  • Fast production lead-time
  • All the material are inspected with 3 times to meet the highly standards
  • Pure steel quality & stable quality to be guarantee
 

OUR MAIN PRODUCTS ARE LISTED AS BELOW

 

DIN EN 20CrMo4 (1.7321)  Alloy Steel Bar / Rod 3

 

Notes:

Available Size:
-Round: Dia. 4 -1600 mm
-Flat: T. 10-120 mm x W. 60-810 mm
-Block: T. 80-1200 mm x W. 100-1600 mm

 

PAYMENT AND SHIPPING

 

1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples

 

COMPANY INFORMATION

 

Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!

 

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 doesn'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 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 US

 

We are happy to answer your questions and make you an offer for these and other materials. Contact us now for more information.

 

Your Contact Person

Ms Chilli Ho

Phone/Wechat/Whatsapp +86-181-0187-5575

Skype: chilli.ho@outlook.com

Email: chilli.ho@shunitesteel.com

Dettagli di contatto
SHANGHAI UNITE STEEL

Persona di contatto: Neya

Telefono: +8615261689453

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