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

1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold

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

1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold

1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold
1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold 1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold 1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold 1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold

Large Image :  1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold

Product Details:
Place of Origin: China
Brand Name: CF
Certification: ISO/Mill Certificate
Model Number: 1.2738 / P20 + Ni
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: Export Standard Packing or Customers'demand
Delivery Time: 15-35 days
Supply Ability: 1000t / Month
Detailed Product Description
Heat Treatment: Annealed / Q + T Surface Treatment: Black/Peeled/Polished/Machined/turned
Delivery Condition: Hot Rolled Test: SGS/Ut 100%/Element Testing
Certificate: ISO/Mill Certificate Shape: Plate / Flat Bar
Process: EAF+LF+VD+ESR Payment Term: 30% Deposit, Balance By L/C At Sigth After Shipment
High Light:

alloy steel flat bar

,

d2 tool steel

 

1.2738 P20 + Ni Pre-hardened Steel Flat Bar For Large Size Injection Mold

 

1.2738 Steel Flat Bar is a mold steel material produced according to the German DIN standard.

 

It has relatively superior mechanical properties and good workability in similar grades of steel.

 

It is mainly used for the processing and production of hot-working molds, of which plastic molds are the most widely used.

 

In addition, the special pre-hardened steel to the factory when it has a good hardness, can reduce the normal mold processing and heat production process, improve economic efficiency.

 

 

Equivalent grades

 

GB DIN AISI ASSAB
3Cr2NiMnMo 1.2738 P20+Ni 718

 

 

Chemical Composition(%)

 

C Si Mn P S Cr Mo Ni
0.28-0.40 0.20-0.80 0.60-1.00 ≤0.03 ≤0.015 1.40-2.00 0.30-0.55 0.80-1.20

 

 

Hardness: Pre-hardened 33-37 HRC

 

 

Available size(mm)

 

Plate/Flat Bar Size(mm) Round bar Size(mm)
Thickness Width Length Diameter Length
10-1100 155-2200 2000-6000 20-200 2000-6000

 

 

Recommend heat treatment

 

Quenching Tempering
Heating temperature Cooling Hardness/HRC Heating temperature Cooling Hardness/HRC
840-870 OIL OR AIR ≥50 550-640 AIR 33-37

 

 

Applications

 

For large, precisionk high polishing plastic moulds, such as car accessories, household appliance, electromic and audio-video products.

 

1. Dermatoglyphics, pear skin pattern, imitation stone pattern etching.
2. Transparent plastic, such as stationery boxes, daily necessities containers high gloss more requirements.
3. Especially suitable for hard plastic (PS) and no plastic pieces (ABS) parts.
4. Car bumpers, interior parts, refrigerators, air conditioners and other large production requirements of large mold.

 

 

Features

 

1) Widely used plastic mould steel with excellent comprehensive mechanical properties, high hardenabiliy with good polishability.

2) To be used directly after pre-hardening, which can guarantee good usability and avoid deformation after heat treatment.

 

 

Delivery condition

 

EF or ESR, Hot rolled or forged, black surface or milling, hardened or tempering to 33-37HRC

 

 

The pre-hardened steel has good polishing properties and is usually polished with alumina or gypsum. The first is the rough throw, and then use more and more fine abrasive polishing, abrasive polishing for each change direction, the final polishing time should not be too long, otherwise it will affect the mold surface roughness.

 

Nitriding can increase the mold surface hardness, improve wear resistance and corrosion resistance. Although the steel has been pre-hardened, but can still heat treatment to improve the hardness.

 

 

1.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold 01.2738 / P20+Ni Plastic Mould Steel Bar For Large Size Injection Mold 1

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

Send your inquiry directly to us (0 / 3000)