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

Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H

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

Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H

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

Large Image :  Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H

Product Details:
Place of Origin: China
Brand Name: CF
Certification: ISO/Mill Certificate
Model Number: P20 + Ni / 1.2738 / 718H
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: Q + T Surface Treatment: Black/Peeled/Polished/Machined/turned
Delivery Condition: Forged / 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:

engineering special steels

,

air hardening tool steel

 

High Quality Pre-hardened Engineering Tool Steel Bar P20 + Ni / 1.2738 / 718H

 

P20+Ni is pre-hardened plastic mold steel. It is used for large, precisionk high polishing plastic moulds, such as car accessories, household appliance, electromic and audio-video products.

 

 

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

 

 

Features

 
1. Material hardness uniformity
2. Excellent polishing performance
3. Good machinability
4. Pre-hardened plastic mold steel
5. Can be nitriding
6. Suitable surface treatment, such as: plating Cr

 

 

Applications

 

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.

 

 

More about P20+Ni engineering tool steel bar

 

P20+Ni engineering steel 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.

 

 

Physical properties

 

(Sample hardness 340HBW, at room temperature and high temperature conditions)


1) Temperature 20 ° C / 200 ° C / 400 ° C, density 7. 8g / cm / 7.75g / cm / 7. 7g / cm.
2) temperature 20 ~ 200 ° C / 20 ~ 400 ° C, linear expansion coefficient: 12.6 × 10K / 13.5 × 10K.
3) the temperature is 20 ° C / 200 ° C / 400 ° C, the thermal conductivity is 29.0 W · (m · K) /29.5W · (m · K) /31.0W · (m · K)
4) Temperature 20 ° C / 200 ° C / 400 ° C, Modulus of Elasticity: 205000 MPa / 200000 MPa / 185000 MPa

 

 

Mechanical properties

 

(Sample hardness 340HBW)


1) Temperature 20 ° C / 200 ° C / 400 ° C, Tensile strength 1100MPa / 1050MP8 / 850MPa.
2) temperature 20 ° C / 200 ° C / 400 ° C, conditional yield strength 980MPa / 925MPa / 770MPa.
3) Temperature 20 ° C / 200 ° C / 400 ° C, reduction of area 49% / 51% / 52%
4) Temperature 20 ° C / 200 ° C / 400 ° C, elongation 13% / 14% / 16%
5) Temperature 20 ° C / 200 ° C / 400 ° C, impact toughness (≥) 20J / cm / 32J / cm / 42J / cm

 

Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H 0Pre Hardened Engineering Steel Bar 33 - 37 Hardness HRC P20+Ni / 1.2738 / 718H 1

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

Send your inquiry directly to us (0 / 3000)