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Guangzhou Changfeng Steel Co., Ltd.

Special Steel, Mould Steel, Steel manufacturer / supplier in China, offering 1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel, 1.6523/SAE8620 Hot Rolled Alloy Tool Steel, D2/1.2379/SKD11 Mould Steel Round Bar For Cold Work Die Steel and so on.

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Supplier Homepage Product Plastic Mould Steel 1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel

1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel

Purchase Qty.:
(Tons)
3-4 5-19 20+
FOB Unit Price: US $1,680 US $1,650 US $1,600
Purchase Qty. (Tons) FOB Unit Price
3-4 US $1,680
5-19 US $1,650
20+ US $1,600
Get Latest Price
Port: Shenzhen, China
Production Capacity: 1000tons/Per Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 1.2738/ P20+Ni/ 3Cr2NiMnMo
  • Technics: Forged
  • Surface: Polished
  • Special Use: Used for Various Large -Sized Mirror Plastic Mould
  • Thickness: 5-800 mm
  • Width: 100-2200 mm
  • Grade: 1.2738/ P20+Ni/ 3cr2nimnmo
  • Test: Ut 100% / SGS
  • Payment: 30% Deposit, Blance by L/C at Sight or T/T
  • Transport Package: Export Standard Packing or Customers′demand
  • Origin: China
  • Standard: DIN, AISI, GB
  • Application: Die Steel Bar
  • Alloy: Alloy
  • Shape: Round Bar or Flat Steel
  • Length: 100-5800 mm
  • Composition: Ferrous Steel Scrap
  • Heat Treatment: Annealed / Q+T
  • Delivery Quantiity: Include MOQ
  • Trademark: CF STEEL
  • Specification: DIN AISI GB
  • HS Code: 72254
Product Description
1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel

1.2738 P20+Ni 3Cr2NiMnMo is one kind of pre-harndened mirror plasitc die steel. With the alloy optimization and structure control key technology, we can gurantee the steel die block has high hardness uniformity, excellent, polishing property and maching property with largest cross sections in China.

1.2738 P20+Ni 3Cr2NiMnMo is a 300HB (30HRC) pre-hardened grade specially designed for plastic mold industry. Chromium, Molybdenum, Nickel carbon and manganese additions are optimized to have a fully martensite-bainite microstructure after quenching. The high nickel content (1%) is specially adapted to ensure a perfect homogeneity of structure and hardness through thickness even for very thick blocks (up to 700mm/28"). The steel is melted in electrical furnace and refined with VOD or DH device The cleanliness of the steel is guaranteed as well as the soundness. This makes the steel particularly well adapted for mold even when polishing or chemical etching are required for surface finish quality.

1.2738 P20+Ni 3Cr2NiMnMo is specially used for Plastic injection die moulds. The characteristics of a material are right sharpening, photo-etching properties with high purity and good homogeneity. 1.2738 P20+Ni 3Cr2NiMnMo is upgraded version of plastic mold steel 0f 2311, which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB with having uniform hardness. The additional nickel content of 1 % increases through hardening. It has good machinability, suitable for Texturing, fine polishability, adequate corrosion resistance, vacuum-degassed steel.

Compare with P20,1.2311 and 3Cr2Mo, 1.2738 P20+Ni 3Cr2NiMnMo will more suitable for larger size plastic parts injection operation,
 
Application
 
1.2738 P20+Ni 3Cr2NiMnMo is applicable for large & small plastic mould dies for Automotive Industries, Dies for Domestic goods , High finishing plastic Die, Boaster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc.


1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel
1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel
1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel


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, Available size(mm)

 
Flat Bar Size(mm)Round bar Size(mm)
ThicknessWidthLengthDiameterLength
10-1100155-22002000-600020-2002000-6000


4, Equivalent Grades
 
GBAISIDIN
3Cr2NiMnMoP20+Ni1.2738


5, Chemical composition (%)
 
CMnSiCrNiMoPS
0.35-0.451.30-1.600.20-0.401.80-2.100.90-1.200.15-0.25≤0.03≤0.03


6, Mechanical Properties
 
HardnessY.S.(0.2%)UTSElongationRoAElastic Modulus
HBMpaKSIMpaKSI%Z%GPAKSI
300826120993145175920529745


7, Recommend heat treatment
 
QuenchingTempering
Heating temperatureCoolingHardness/HRCHeating temperatureCoolingHardness/HRC
840-870OIL OR AIR≥50550-640AIR28-36


8, Hardness: 33-37HRC


9, Packing: Standard export packing or according to customers' request

1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel


10, Delivery Date

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


11, The process flow

1) Hot rolled or forged condition, Pre-harden &tempering , black surface
2) Hardness: 30~36HRC
3) Hot rolled technology:EAF+LF+VD
Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface


12, About Us

1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel
1.2738 P20+Ni 3Cr2NiMnMo Die Steel Plate Flat Special Steel Alloy Steel

 
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