About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Guangzhou Changfeng Steel Co., LTD
Home ProductsForged Steel Block

Prehardened Special Steel Flat Bar For Making Large Size Plastic 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

Prehardened Special Steel Flat Bar For Making Large Size Plastic Mold

small.img.alt small.img.alt

Large Image :  Prehardened Special Steel Flat Bar For Making Large Size Plastic Mold

Product Details:
Place of Origin: China
Brand Name: Changfeng
Certification: ISO/ Mill Certificate
Model Number: 1.2738/P20+Ni/3Cr2NiMnMo
Payment & Shipping Terms:
Minimum Order Quantity: 3T
Price: 1275-1360usd/sqm
Packaging Details: bulk packing
Delivery Time: 15-20 days
Payment Terms: T/T, L/C
Supply Ability: 1000 ton/Month
Detailed Product Description
Shape: Block Process Technology: Annealed/Forged
Heat Treatment: Annealed / Q+T Quality Inspection: 100% UT Passed
Thickness: 300-810mm
High Light:

hardened steel block


tool steel block

1.2738 718 Prehardened special Steel flat Bar For Making Large Size Plastic mold​


1.2738 718 Prehardened special Steel flat Bar For Making Large Size Plastic mold

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

7. Packing:Standard Export Packing or As per request

8. Delivery:
Abundant stock, 15-20 days.
Customized products, 30-50 days.

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


All the sizes as require can be customerized as fresh production with MOQ,products of required specifications can be developed/produced per international, chinese or industry standards, or based on agreements with customers.

9. 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 +QT + Machined surface

10. Payment term: T/T or L/C


11. Our service:

1) Sizes, materials and others are all at your requirements and can be changed.
2) Price varies on materials, dimensions, finish craft and different payment.
3) We are direct manufacture in machinery manufacturing work with experience of several decades.
4) Detail production design will be made according to information you offer.
5) We have adequate inventory, so that we can quickly delivery.
6) The most important is that we have advanced equipment.
About us:
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China. With more than 20 years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.
To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel.
We have
thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.

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 10-460 155-2200 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



Prehardened Special Steel Flat Bar For Making Large Size Plastic Mold 0





Prehardened Special Steel Flat Bar For Making Large Size Plastic Mold 1



Strict Quality Control


Prehardened Special Steel Flat Bar For Making Large Size Plastic Mold 2


Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

Send your inquiry directly to us (0 / 3000)