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Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m

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China Guangzhou Changfeng Steel Co., LTD certification
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Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m

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Large Image :  Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m

Product Details:
Place of Origin: China
Brand Name: Changfeng
Certification: ISO / Mill Certificate
Model Number: S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083
Payment & Shipping Terms:
Minimum Order Quantity: 5t
Price: to be negotiated
Packaging Details: wooden case
Delivery Time: 15-20days
Payment Terms: 30% Deposit, Blance by L/C at Sight or T/T
Supply Ability: 1000t/Mouth
Detailed Product Description
Technology: Hot Rolled/Forged Surface: Black Surface/polished
Condition: Annealed Condition Test: SGS/Ut 100%/Element Testing
Length: 3000-6000mm
High Light:

mould steel material


p20 mold steel

S45C S48C S50C Carbon Steel ROUND Bar of Plastic Mold steel

S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 steel round bar with length 3-6m

S45C S48C S50C Carbon Steel Bar is used for making injection plastic mould, mould frame and some mid-range machines.

S45C S48C S50C Hot Rolled Carbon Steel Bar
1. Grade: S45C S48C S50C
2. the quality is the best
Standard: AISI, ASTM, BS, DIN, GB, JIS
Place of Origin: China


1.Grade S50C carbon Steel Bar is use for making injection plastic mould, mould frame and some mid-range machine.
2.Grade S50C carbon Steel Bar is widely used in construction, bridges, electricity station, ship building, boiler, and so on, alloy steel plate also can be made according to the customers required.
3.For plastic moulds, cold work die and mould base as well as constructional part


Technique: Hot Rolled or Forged

Chemical composition(%)

C Si Mn P S
0.43-0.53 0.15-0.35 0.50~0.8 ≤0.035 ≤0.035

Delivery days:
For abundant stock, 15-20 days.
For customized products, 30-50 days.


Package: We provide standard export packing or according to customers' request.



Prehardened P20 1.2311 Hot Rolled Steel round bar

1. Comparable Grade:

P20 1.2311 PDS-3 3Cr2Mo

2. Application:
1. Used in zinc, aluminum,magnesium and its alloy die-casting mould.
2. Thermoplastic plastic injection molds,extrusion die.
3. Thermoplastic plastic blow molding mold.
4. Overloading mold main components.
5. Metal extrusion die die set.

3. Feature:
1. Pure steel vacuum degassing refining process for polishing or etch processing plastic mold
2. Pre-hardened state of supply, without heat treatment can be used directly in the mold, shorten the construction period.
3. By forging rolling processing, compact structure, 100% ultrasonic testing, non-porous, needle defects.
4. For the production of plastic mold and die casting low melting point metal mold material.
5. This steel has good machinability and mirror polishing properties.
6. Hardness:28-32HRC
7. Good dimensional stability
8. With long service life,Mold die life up to 50W times

4. Chemical composition (%)

C Si Mn P S Cr Mo
0.28-0.40 0.20-0.80 0.60-1.00 ≤0.030 ≤0.030 1.40-2.00 0.3-0.55




1.2312/P20+S Alloy Steel round bar

1.2312/P20+S steel is ideally suited for the production of moulds where improved machinability is required. Typical applications include die holders, zinc die casting dies, backers, bolsters and injection moulds. The versatility of this plastic mould tool steel with its high tensile characteristics enables uses for a variety of other applications such as shafts and wear strips.

1. The main performance
It has excellent hardening depth and good machinability, Delivery to pre hardened and tempered condition, Sulfur content is higher than 1.2311. Can impose nitriding processing (about 800HV), plating Nickel or chrome.

2. Application:
Mainly used for the degree of thefamily which do not require extreme large plastic moulds, Used as a low melting point of die holder , mould base, etc.

3. Grade

1.2312 X40CrMnMoS8-6 (40CMD8S) P20+S 4Cr2MnMo

4. Chemical composition (%)

C Mn Si Cr Mo S P
0.35-0.45 1.40-1.60 0.30-0.50 1.80-2.10 0.15-0.25 0.05-0.10 ≤0.030

5. Phase transition temperature

Ac1 740°C
Ms 310°C

6. The hardness of delivery

Prehardened and tempered HB278-325(950-1100N/mm²)




1.2316 Mould Steel round bar


1.2316 High Cr content die Steel plate in black surface with thick. 130-360mm

1. Grade:1.2316

2. Features:

A) Preliminary hard conditioning die mould steel;
B) Excellent corrosion resistance and have abrasion resistance and toughness;
C) Material hardness is uniform, have a superior polishing performance;

3. Application:

A) Highly stressed cutting and punching tools for thin sheets;
B) Stone processing tools and knives for paper and plastics,shear knives;
C) Low content of impurity content,stable production period;

4. Chemical composition (%)

C Si Mn Cr P S Mo Ni
0.33-0.43 ≤1.00 ≤1.00 6.00-17.0 15.5-17 ≤0.02 1.0-1.2 0.3

5. Hardness: prehardened 32-35HRC



1.2738 P20+Ni 718 Steel round bar

DIN 1.2738, forged Plastic Mould Steels, pre-hardened large size injection mould, can be pollished normally.Used for making high demand large size plastic mould.

1. Features
A. uniform hardness qualitative of Material;
B. No quenching crack danger,Without heat treatment costs that can reduce the tool cost;
C. Excellent polishing performance;
D. Good machining performance;

2. Application
Used for various large -sized mirror plastic mould,percision mould;
A. Leather grain, pear skin grain etching, imitation stone moulds;
B. Clear plastic container classes such as pencil case, commodity high gloss mould;
C. Such as refrigerator, air conditioner production to demand higher large mould;

3. Grade

3Cr2NiMnMo P20+Ni 1.2738

4. Chemical composition(%)

C Mn Si Cr Ni Mo P S
0.35-0.45 1.30-1.60 0.20-0.40 1.80-2.10 0.90-1.20 0.15-0.25 ≤0.035 ≤0.035

5. Mechanical Properties:

Hardness Y.S.(0.2%) UTS Elongation RoA Elastic Modulus
300 826 120 993 145 17 59 205 29745

6. Hardness:33-37HRC



NAK80 P21 Steel Round Bar


NAK80 P21 Steel Rod Of Hot Rolled Plastic Mould Steel in Black Surface

Chemical Composition(%)

C Si Mn P S Ni Mo Cu Al
0.10-0.18 ≤0.35 1.70-2.0 ≤0.030 ≤0.030 2.90-3.40 0.20-0.50 0.80-1.20 0.70-1.10

1. No heat treatment, excellent optical polishing, machinability, good erosion
2. Vacuum degassing refining steel pure.
3. Spheroidized annealing softening treatment, good cutting performance.
4. Strengthen the elements of vanadium, molybdenum special addition, wear resistance is extremely excellent.

General use in the mirror polishing mold, anti-dust, TV filter board, cosmetic box, precision wrinkle processing mold, office automation equipment, auto parts discharge processing mold.
1) Deep drawing die, cold extrusion die.
2) Thread rolling and wear resistant sliders.
3) Cold heading die, thermosetting resin molding die.
4) All kinds of scissors, mosaic blade, woodworking blade.
5) Thickness of not more than 2MM thin sheet, efficient blanking mold, punching die and impression die.



SS420/S136/1.2083 Steel Round Bar


S136--Martensitic stainless chromium steel for plastic moulds.It can be produced on request by the process ESR and quenched and tempered condition.

Grades Comparison

Sweden(SS) USA(AISI) Germany(DIN) China(GB)
S136 420 1.2083/ x40Cr14 4Cr13

Chemical Composition(%)

C Si Mn P S Cr
0.36-0.45 ≤0.60 ≤0.80 ≤0.035 ≤0.030 12.00-14.00

1. Highly quality of corrosion resistance
2. Pre-hardened delivery save forming mould time
3. Good anti-rusty capacity and easy for welding
4. Excellent polish ability and wear-resisting with high toughness
5. Convenient heat treatment for quenched&tempered steel, without deformed

1. Highly stressed cutting and punching tools for thin sheets
2. Stone processing tools and knives for paper and plastics,shear knives
3. Transparent plastic mould


Hot Sale Products for Hot/Cold work Mold Steel

STANDARD/GRADE Flat Bar Size(mm) Round bar Size(mm) Technics
DIN AISM JIS GB(China) Thickness Width Length Diameter Length
1.2311 P20 PDS-3 3Cr2Mo 10-300 155-2200 1600-10000 12-120 4000-6000 Forged, Hot Rolled
1.2738 P20+Ni - 3Cr2NiMnMo 21-1200 1600-2200 4000-10000 - -
1.2379 D2 SKD11 Cr12Mo1V1 6-160 155-810 3000-6000 14-80 3000-6000
1.2080 D3 SKD1 Cr12 12-90 155-610 3000-6000 10-180 3000-6000
1.2083 420 - 4Cr13 12-260 205-2000 1600-6000 12-500 3000-6000
1.2344 H13 SKD61 4Cr5MoSiV1 16-500 205-1000 3000-6000 150-450 3000-6000
1.2510 O1 SKS3 9CrWMn 9-120 155-610 3000-6000 8-80 3000-6000
1.7225 SAE4140 SCM440 42CrMo 20-280 155-2200 2000-6000 16-450 3000-10000

Payment term: T/T or L/C
Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m 0
Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m 1
Strict Quality Control
Annealed Steel Round Rod S50C P20 1.2311 1.2312 1.2316 1.2738 NAK80 1.2083 With Length 3-6m 2

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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