• Model NO.：1.6523, SAE8620, 20CrNiMo
• Special Use：Mold Steel, Free Cutting Steel
• Heat Treatment：Annealing,Q+T
• Test：SGS,Ut 100%,Element Testing
• Certificate：ISO ,Mill Certificate
• Grade：1.6523, SAE8620, 20CrNiMo
• Payment：30%Deposit, Blance by L,C at Sight or T,T
• Delivery Quatity：Include MOQ
• Transport Package：Export Standard Packing or Customers′demand
• Specification：diameter 20-100mm
• Trademark：CF STEEL
• Origin：China
• HS Code：7228300000
• Production Capacity：1000t,Month

Basic Info.

Model NO. 1.6523, SAE8620, 20CrNiMo Special Use Mold Steel, Free Cutting Steel Heat Treatment Annealing/Q+T Test SGS/Ut 100%/Element Testing Certificate ISO /Mill Certificate Grade 1.6523, SAE8620, 20CrNiMo Payment 30%Deposit, Blance by L/C at Sight or T/T Delivery Quatity Include MOQ Transport Package Export Standard Packing or Customers′demand Specification diameter 20-100mm Trademark CF STEEL Origin China HS Code 7228300000 Production Capacity 1000t/Month

Product Description

1.6523/SAE8620 Hot Rolled Alloy Steel for Mechanical

Chemical Composition 

C	Si	Mn	Cr	Ni	Mo	S	P
0.18-0.23	0.15-0.35	0.70-0.90	0.40-0.60	0.40-0.70	0.15-0.25	≤0.035	≤0.035

1. Feature:
1) Demand has high yield strength, tensile strength and fatigue strength, there has enough plasticity
and toughness;
2) Demanding by refining outside the furnace, vacuum electroslag remelting or processing, or double vacuum smelting, vacuum induction furnace smelting suitable heat treatment;
3) Corrosion resistant steel, heat-resistant steel, wear-resistant steel, magnetic steel, and other
special physical and chemical properties of the steel;

2. Application:
1) Zinc, aluminum, magnesium and other  alloy die-casting molds;
2) Heat dies and all kinds of hot forged molds;
3) Metal extrusion die holder.

3. Ready Stock:
Round bar dia20-100mm black surface and hot rolled deliver condition.

4. Heat Treatment
1) Preheating 2-4 hours in  500-600°C;
2) Keeping temperature for 2 hours in  850-880°C;
3) Oil cooling to reach 50-100°C;
4) After quenching can reach a hardness of 50-52HRC, then tempered at 200°C,
then hardness can reach above 48 HRC.

5. Melting Process
1) EAF:Electric Furnace+LF+VD (Optional);
2) ESR:Electric Furnace+LF+VD+Eleroslag Remelted (Optional).

6. Packaging Details:
Packed with plastic film, seaworthing packing, others according to customers' requirements;
 
7. Delivery time:
For abundant stock, 15-20 days.For customized products, 30-50 days.

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.

Product pictures:



Corner of factory: