INTRODUCTION
50CrMo4 is steel related to 42CrMo4, 34CrMo4 as well as 25CrMo4. These
standards, apart from practically the same concentration of
Chromium and Molybdenum, are distinguished by much lower average
carbon content in the chemical composition. 50CrMo4 is one of the
last grades that is classified as structural steel for thermal
improvement and its only similar steel grade is 50H - not
containing Molybdenum.
Products with a particular composition are dedicated for vehicles
and machines that require high hardness and are subject to strong
bending, twisting, abrasion and wear loads. They have a higher
yield point than other HM steels.
APPLICATIONS
They are used as semi-finished products for the manufacture of
components such as crankshafts, cogwheels, heavy-duty axles, gears,
valves, heavy-duty screws, thrust rollers, guides, articulated
joints, thrust rings, bolts or bushes.
For some applications, the steel may exhibit good spring
properties. Simple yet proven chemical composition allows for easy
welding of parts and mechanical cutting.
SUPPLY RANGE OF of EN 50CrMo4 1.7228
-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.)
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.
Equivalent grades of steel 50CrMo4 (1.7228) Only for reference
EU
EN | Germany
DIN,WNr | England
BS | China
GB | Inter
ISO |
| 50CrMo4 | 50CrMo4 | 708M40 / 708M5 | 50CrMo | 50CrMo4 |
Chemical Requirements, Composition, %
| C | Si | Mn | P | S | Cr | Mo |
| 0.46 - 0.54 | max 0.4 | 0.5 - 0.8 | max 0.025 | max 0.035 | 0.9 - 1.2 | 0.15 - 0.3 |
General Mechanical Properties
| Standard | Steel Grade | Yield strength σs/MPa (>=) | Tensile strength (MPa) | Elongation % (>=) | Reduction of areaψ/% (>=) | Impact absorbing energy Aku2/J (>=) | Hardness HB |
| EN 10083-3 | 50CrMo4 | 900 | 1100-1300 | 9-11 | 40 | 30 | 248 |
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
PROCESSING
Heat treatment recommendations
| Treatment | Condition | Temperature cycle | Cooling/quenching |
|---|
| Hot forging | | 850-1100 | In still air |
| Normalizing | +N | 840-880 | In still air |
| Soft annealing | +A | 700-730/2h | 15ºC/h to 600ºC, then still air |
| Stress relieve annealing | +SRA | 525-620 | In still air |
| Hardening | +Q | 830-860 820-850 | In oil In water |
| Tempering | +T | 525-625/1h | |
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
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
