1.2312 P20+S/P21 Nak80 Forged Qt Prehardening Steel for Plastic Mould

• Customization: Available
• Type: Sheet
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: 1.2312 mould steel
• Technique: Forged/Hot Rolled/Cold Drawn
• Shape: Round/Flat/Block/Square/Tube
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Die Steel Bar
• Certificate: ISO, ABS, BV, CCS, Dnv, Lr, Gl, Mill Certificate
• Quality Inspection: Ut, Chemical Composition, Physical Properties/SGS
• Thickness: <400mm
• Heat Treatment: Annealed/Normalized/Q+T
• Surface Require: Black,Grinding,Bright,Polish
• Process: Eaf+Lf+Vd+Forged+Heat Treatment(Optional)
• Delivery Condition: Hot Rolled/Forged/Cold Drawn
• Ut Standard: Sep 1921-84 D/D
• Grain Size: ASTM E112
• Non-Metallic Inclusion: ASTM E45
• Technical: Ensile Strength, Yield Strength, Elongation
• Usage: Automotive, Aerospace, Power Generation, Oil & Gas
• Transport Package: Seaworthy Packing/Wooden Box or at Client′s Requir
• Specification: Customized
• Trademark: OEM & ODM
• Origin: China
• HS Code: 72284000
• Production Capacity: 1000 Ton/Month

Product Description

Product Description

Chromium Nickel Alloy Die Steel 3Cr2Mo 1.2311 1.2312 P20 Plastic Mould Steel for large and medium-sized precision molds

Mould steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die-casting dies. Mold is the main processing tool for manufacturing parts in industrial sectors such as mechanical manufacturing, radio instruments, motors, and electrical appliances. The quality of molds directly affects the quality of pressure processing technology, product accuracy and production costs. In addition to reasonable structural design and processing accuracy, the quality and service life of molds are mainly influenced by mold materials and heat treatment.

P20 tool steel differs from area to area in the different countries. Europeans generally use the spec DIN EN ISO 4957 standard materials (1.2311 and 1.2312), while in Japan steel industry standard, PX5 is the new standard P20. And the Americas Countries, Grade steel P20 is the most and wide used steel grade material. In China, 3Cr2Mo is the P20 steel grade equivalent, which is in the standard GB/T 1299 tool steel specification.

Dimensions
Thickness: 10-460 mm
Width: 1600-2300 mm
We cut and machine the steel plates according to your requirement.

Chemical Compsition (%)

Steel Grade	C	Si	Mn	P	S	Cr	Mo
P20	0.28- 0.40	0.20- 0.80	0.60- 1.00	≤ 0.030	≤ 0.030	1.40- 2.00	0.30- 0.55
1.2311	0.35-0.45	0.20-0.40	1.30-1.60	≤ 0.030	≤ 0.030	1.80-2.10	0.15-0.25
1.2312	0.35-0.45	0.30-0.50	1.40-1.60	≤ 0.030	0.05-0.10	1.80-2.00	0.15-0.25
3Cr2Mo	0.28-0.40	0.20-0.80	0.60-1.00	≤ 0.030	≤ 0.030	1.40-2.00	0.30-0.55
NAK80	0.15	0.30	1.50	0.03	0.03	1.40-2.00	0.30-0.55
P21	0.18-0.22	0.20-0.40	0.20-0.40	0.03	0.03	1.40-2.00	0.30-0.55

 

Plastic Mould Steel
Due to the wide variety of plastics, there are also significant differences in the requirements for plastic products, and various performance requirements are also put forward for the materials used to manufacture plastic molds. So, many industrialized countries have formed a wide range of steel series for plastic molds. This includes carbon structural steel, carburized plastic mold steel, pre hardened plastic mold steel, age hardening plastic mold steel, corrosion-resistant plastic mold steel, easy cutting plastic mold steel, integrally quenched plastic mold steel, martensitic aging steel, and plastic mold steel for mirror polishing.

P20 Plastic Mould Steel Featrure:
1. Uniform hardness, excellent polishing performance and photolithography performance, and excellent processing performance
2. Vacuum degassing and refining of pure steel, suitable for polishing or etching plastic molds.
3. The pre hard state supply can be directly used for mold processing without reheat treatment, shortening the construction period.
4. After forging and rolling processing, the structure is dense, 100% ultrasonic inspection, and there are no pores or pinhole defects.
 
Applications
1.Suitable for plastic molds and mold bases such as TV front shells, telephones, water dispensers, vacuum cleaners, etc.
2.Thermoplastic injection molds, extrusion molds.
3.Thermoplastic blow molding molds.
4.Main components of heavy-duty molds.
5.Cold structural components.
6.Commonly used for manufacturing TV casings, washing machines, refrigerator casings, buckets, etc

Forging Technique

 

Heat Temperature	Start Forging Temperature	Finish Forging Temperature	Cooling Method
1120-1160 °C	1070-1110 °C	>=850 °C	Sand Cooling or Slow Cooling

Delivery Condition

Hot rolled, Prehardened, 28-34 HRC or 30-36 HRC, 100% UT passed
 

 

Main Products

 

Alloy Steel	4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6, 1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236,
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057

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