Home
Products
About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
News
Guangzhou Changfeng Steel Co., LTD
Home ProductsTool Steel Bar

Forged Tool Steel Bar 20 - 200mm Diameter 1.2311 / 3Cr2Mo Good Hardness Uniformity

China Guangzhou Changfeng Steel Co., LTD certification
China Guangzhou Changfeng Steel Co., LTD certification
Gold supplier! Arranged shipment very fast, quality is super good. They are one of our best suppliers, will do more business with them in the future!

—— Ms Nguyen Thi Hong

We bought 7 containers from them in 2017, no quality problems. The boss is very nice and professional, good business parner!

—— Mr. Wan Rusli

Good job! Shipment was arranged fast, giving lots of good suggestions before place order, saved me time and money.

—— Mrs. Natntia Jitaniyompanich

I'm Online Chat Now

Forged Tool Steel Bar 20 - 200mm Diameter 1.2311 / 3Cr2Mo Good Hardness Uniformity

large.img.alt
small.img.alt small.img.alt small.img.alt small.img.alt

Large Image :  Forged Tool Steel Bar 20 - 200mm Diameter 1.2311 / 3Cr2Mo Good Hardness Uniformity

Product Details:
Place of Origin: China
Brand Name: CF
Certification: ISO / Mill Test Certificate
Model Number: 1.2311, P20, PDS-3, 3Cr2Mo
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Standard Export Packing or As per request
Delivery Time: 7-15 days
Payment Terms: T/T, L/C
Supply Ability: 1000 MT per month
Detailed Product Description
Heat Treatment: Annealed/Q + T Surface Treatment: Black/Peeling/Polishing/Machined
Delivery Condition: Forged Or Hot Rolled Test: SGS/Ut 100%/Element Testing
Certificate: ISO/Mill Test Certificate Shape: Round/plate/sheet/flat Bar
Hardness: 28 To 32 HRC Flaw Detection: CC / DD/ EE
Service: Free Sample And 24 Hours Online Process: EAF+LF+VD+ESR
High Light:

carbon tool steel

,

tool steel flat bar

 

Hot Rolled P20/ 1.2311/ 3Cr2Mo Rrehardening Steel Round Bar of Plastic Mold Steel

 

 

Equivalent Grades

 

GB DIN AISI JIS
3Cr2Mo 1.2311 P20 PDS-3

 

 

1, Features


a, Good hardness uniformity and polishing property,good machining properties.


b, Good integral machanical performance when under high temperature, high Corrosion resistance


c, Good heat-resistance and fatigue-resistance,very high mechanical behavior,cutting mechanical property.


d, Pre-hardened to HRC28-32, can be directly used on mould processing, shorten the construction period.


e, High putity and homogeneous structure of China's biggest ESR production base for its strict requirement in the whole process of exploitation, smelting, vacuum degassing, ESR, forging, annealing, inspection.
 

 

2, 3Cr2Mo 1.2311 P20 Chemical Composition (Wt%)

 

Steel Grade C Si Mn Cr Mo S P
1.2311 0.35-0.45 0.20-0.40 0.60-1.00 1.80-2.10 0.30-0.55 ≤0.003 ≤0.030
P20 0.35-0.45 0.20-0.40 0.60-1.00 1.80-2.10 0.30-0.55 ≤0.003 ≤0.030
PDS-3 0.35-0.45 0.20-0.40 0.60-1.00 1.80-2.10 0.30-0.55 ≤0.003 ≤0.030

 

 

3, Available Size (mm)

 

Plate Size(mm) Flat Bar Size(mm) Round Bar Size(mm)
Thickness Width

Length

Thickness Width Length Diameter Length
10-700 1600-2200 4000-10000 10-700 155-2200 2000-6000 20-200 2000-6000

 

 

4, Applications


Used for various lager-sized or medium-size precision plastic mould and alloy parts. 


a, Ideally suited for the production of plastic moulds;


b, Die holders, zinc die casting dies, backers, bolsters and injection moulds;


c, Shafts, rails and wear strips;

 

 

Forged Tool Steel Bar 20 - 200mm Diameter 1.2311 / 3Cr2Mo Good Hardness Uniformity 0

 

 

5, Packing: Standard Export Packing or As per request

 

 

3Cr2Mo 1.2311 P20 special mould steel Mechanical and Physical Properties

 

Properties Metric
Hardness, Brinell (typical) 300
Hardness, Rockwell C (typical) 30
Tensile strength, ultimate 965-1030 MPa
Tensile strength, yield 827-862 MPa
Elongation at break (in 50 mm (2″)) 20.00%
Compressive strength 862 MPa
Charpy impact (V-Notch) 27.1-33.9 J
Poisson’s ratio 0.27-0.30
Elastic modulus 190-210 GPa

 

 

 

HEAT TREATMENT of 1.2311 P20 PDS-3 3Cr2Mo

 

Forging: P20 plastic mould steel are forged at 1093°C (2000°F) down to 899°C (1650°F). Forging below 871°C (1600°F) is not recommended for these steels.

 

Annealing: Annealing takes place at 760-788°C (1400 to 1450°F) and then the steels are cooled slowly in the furnace at a temperature less than 4°C (40°F) per hour.

 

 

Stress Relieving: When dies are heavily machined, we recommend stabilising just before finish machining in order to relieve machining strains. Heat to 460-500°C. Soak well and allow to cool in the air.

 

 

Hardening: Heat the steel uniformly to 820-840°C until heated through. Quench in oil.

 

 

Tempering: Heat uniformly and soak at the tempering temperature for at least one hour per 25mm of section. Allow to cool in still air.

 

 

Carburising / Case Hardening: Tools produced from may be case hardened, which can achieve a surface hardness of 55 to 59 HRc.

 

 

Tufftriding: At 570ºC tufftriding of 1.2311 P20 PDS-3 3CR2Mo tool steel will give a surface hardness of approximately 700HV. Allowing two hours treatment the surface hard layer will be approximately 0.1mm.

 

 

Hard Chromium Plating: To avoid hydrogen embrittlement P20 should be tempered for 4 hours at 180°C for 4 hours after hard chromium plating

 

 

Flame / Induction Hardening: Flame or induction hardening of P20 will achieve a hardness of 50 to 55HRc. Air cooling is preferable, though smaller components may require forced cooling. Temper immediately after hardening.

 

 

Cold Working:P20 plastic mould steel are capable of being readily cold worked by using conventional tooling methods with the alloy in the annealed condition.

 

 

Welding: Conventional methods are used for welding of P20 plastic mould steel.

 

 

Forming: P20 plastic mould steel can be readily formed by conventional methods in the annealed condition.

 

 

Machinability: P20 plastic mould steel have excellent machinability at about 80% that of water hardening steels.

 

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

Send your inquiry directly to us (0 / 3000)