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LADHANI METAL CORPORATION, MUMBAI, INDIA
DIN EN 20CrMo4 (1.7321) Alloy Steel Bar / Rod, Manufacturer, Supplier, Exporter.
Product Details:
Brand Name: | LMC |
Payment & Shipping Terms:
Minimum Order Quantity: | MOQ: 2-3 ton |
Price: | USD 700- 2000/ton |
Packaging Details: | Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips. |
Delivery Time: | Within 15-35 days |
Payment Terms: | L/C, T/T, D/A, D/P |
Supply Ability: | 3000 ton/month |
| Matrial: | Alloy Steel | Standard: | GB, ASTM, DIN,JIS |
|---|---|---|---|
| Grade: | 20CrMo4 (1.7321) | Diameter: | 4-1600mm |
| Length: | Below 16 Meters | Shape: | Round Bar |
| Techniques: | Cold Drawn; Hot Rolled; Cold Rolled; Forged | Surface: | Black, Bright, Polished, Peeled, Or Upon Request |
| Ultrasonic Test: | 100% UT Passed | Processing: | Annealed Or Quenched And Tempered Provided |
| End: | Beveled, Plain End As Required | Quality Inspection: | SGS, BV Etc. |
| Service: | Cutting Service And 3rd Party Inspection Is Provided |
| High Light: | 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.)

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

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.

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 & Delivery
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
Ladhani Metal Corporation.
We are committed to integrate engineering steel resources in India and serve the global engineering steel market. Our company has more than 32 years of experience in steel researching, production, managing and sales.
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 India.
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!
FOR MORE DETAIL CONTACT US AT:-
LADHANI METAL CORPORATION, MUMABAI, INDIA,
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