Nak80/P21 Alloy Steel Round Bar Plastic Mould Steel

• Standard: JIS, AISI, ASTM, GB
• Technics: Hot Rolled
• Application: Die Steel Bar
• Surface: Black
• Alloy: Alloy
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Free Cutting Steel, Mold Steel
• Model NO.: NAK80, P21
• Delivery condition: pre-hardened HRC38-40
• Diameter: 20-500mm
• Delivery Time: 7days
• Condition: stock
• Quality Assurance: 100% UT passed
• Transport Package: Standard/Customized
• Specification: standard/customized
• Trademark: CF STEEL
• Origin: China
• HS Code: 72254
• Production Capacity: 1000 Tons/ Month

Product Description

Nak80/P21 Alloy Steel Round Bar Plastic Mould Steel 

1. Product Introduction

NAK80 is low alloy separate out in duration steel. It has good mechanical property after the heat-treatment with small distortion and nice mirror process under the heat-treatment and has good nitrogenated capacity, electronic capacity and welding capacity.  Used for high precision mirror plastic mould and high appearance home electronic plastic mould.
SAE-AISI P21 steel is a tool steel. Cited properties are appropriate for the hardened (H) condition. P21 is the designation in both the SAE and AISI systems for this material. T51621 is the UNS number. The graph bars on the material properties cards below compare SAE-AISI P21 steel to: tool steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on. 

2. Features

1.  High Hardness-wear resistance
2. Heat Treatment Free-pre-hardened steel
3. Easy Polishing-mirror polishability
4. Easy Texturing-highly designing
5. Easy Welding-repair weldability
6. Easy Machining-machinability

3. Similar Standards

Chinese	American	Germany	Japanese
GB	AISI	DIN	JIS
10Ni3MnCuAl	P21	XPM	NAK80

4. Chemical Composition

Grades	C	Si	Mn	P	S	Mo	Ni	Cu
NAK80	0.05-0.18	0.15-1.00	1.0-2.0	/	/	0.1-0.4	2.5-3.5	0.7-1.5
10Ni3MnCuAl	0.06-0.16	≤0.4	1.4-1.7	≤0.03	≤0.03	0.2-0.5	2.7-3.3	0.8-1.2

5. Heat Treatment

Quenching		Tempering
Heating Temperature/ºC	Hardness/HRC	Heating Temperature/ºC	Cooling	Hardness/HRC
840-870	50-55	200-500	Air	37-43

6.  Applications
1. Mirror polishing mold, dust cover, TV filter, cosmetic box  
2. Precision thread processing molds, office automation equipment, automotive parts
3. Electric discharge machining mold

7. Stock Size

Plate	Thickness	20-300mm
	Width	200-2000mm
	Length	3000-6000mm
round bar	Diameter	50-1000mm

8. Product picture