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Guangzhou Changfeng Steel Co., LTD
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Pre - Hardened HRC 38-42 Hot Rolled Steel Bar Medium Toughness

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!

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We bought 7 containers from them in 2017, no quality problems. The boss is very nice and professional, good business parner!

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Pre - Hardened HRC 38-42 Hot Rolled Steel Bar Medium Toughness

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Large Image :  Pre - Hardened HRC 38-42 Hot Rolled Steel Bar Medium Toughness

Product Details:
Place of Origin: China
Brand Name: CF STEEL
Certification: ISO/Mill Certificate/SGS
Model Number: 1.2083 SUS420J2 420 S136 4Cr13
Payment & Shipping Terms:
Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: standard export packing or customers' request.
Delivery Time: 7-15 days
Payment Terms: L/C, T/T
Supply Ability: 1000t/Month
Detailed Product Description
Heat Treatment: Annealing +Q+T Surface Treatment: Black / Milling / Machined
Standard: DIN,ASTM,AISI,GB,JIS Hardness: Pre-hardened HRC 38-42; Annealing <235
Technology: Forged Or Hot Rolled Test: SGS / Ut 100% / Element Testing
High Light:

hot rolled steel flat bar


hot rolled alloy steel round bar

Hot Rolled Alloy Steel Bar 1.2316 1.2083 420 4Cr13 of Stainless

1.2083 mould steel is a kind of plastic mould steel with high chromium element which is up to 13%.1.2083 mould steel has good wear resistance and good polishing, it widely used for acid proof plastic mold.
Similar grade:DIN 1.2083/X42Cr13/X40Cr14, AISI 420, JIS SUS420J2,Gost 4Cr13

1,Equivalent grades:

4Cr13 1.2083 420 S136

2,Chemical composition (%)

Steel Grade Chemical Composition(%)
C Si Mn P S Cr
1.2083 0.36-0.42 ≤1.00 ≤1.00 ≤0.030 ≤0.030 12.50-13.50
SUS420J2 0.26-0.35 ≤1.00 ≤1.00 ≤0.035 ≤0.030 12.00-14.00
420 0.26-0.40 ≤1.00 ≤1.00 ≤0.040 ≤0.030 12.00-14.00
S136 0.38 0.9 0.5 ≤0.040 ≤0.030 13.6
4Cr13 0.36-0.45 ≤0.60 ≤0.80 ≤0.035 ≤0.030 12.00-14.00

1) Excellent corrosion resistance;Excellent abrasion resistance and elasticity;
2) Excellent high-temperature abrasion resistance;
3) medium toughness,dimensionally stable,high compressive strength;

1) highly stressed cutting and punching tools for thin sheets;
2) stone processing tools and knives for paper and plastics,shear knives
3) Chemical Resistance plastic mold,Corrosion of thermoplastic plastics;

5,Heat Treatment:
Annealing : 810 - 830 °C
Hardness after annealing : Max.230 HB
Stress relieving: Approx.650 °C
Hot forming: 1050 - 850 °C
Hardening: 970 - 990 °C
Quenching media: Oil, Vacuum
Hardness after quenching: 30 - 36 HRC

6,Hardness:Prehardened 30-36 HRC

7,Available size(mm):
Flat Bar Size(mm) Round bar Size(mm)
Thickness Width Length Diameter Length
10-700 155-2200 2000-6000 20-200 2000-6000

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

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


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Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in plastic mould steel,hot work mould steel,cold work mould steel,alloy steel for mechanical,high speed steel, etc. All material are with high quality and competitive price.

Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 30-50days (depend on the quantity)after receiving your prepayment or firm order.

Q: What is the payment term?
A: T/T or L/C or Trade Assurance.

Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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