1.2738 P20+Ni 3Cr2Mo Plastic Die Mould Alloy Steel Flat Bar

• Technique: Hot Rolled
• Standard: AISI, JIS, DIN, GB
• Certification: IS0, RoHS
• Grade: 1.2738/ P20+Ni/ 3cr2nimnmo
• Heat Treatment: Prehardened / Q+T
• Shape: Round Bar or Flat Steel
• Model NO.: 1.2738/ P20+Ni/ 3Cr2NiMnMo
• Composition: Ferrous Steel Scrap
• Test: Ut 100% / SGS
• Delivery Quantiity: Include MOQ
• Payment: 30% Deposit, Blance by L/C at Sight or T/T
• Transport Package: Export Standard Packing or Customers′demand
• Specification: thickness: 21-300mm width: >=155mm, length: 5800mm
• Trademark: CF STEEL
• Origin: China
• HS Code: 72254
• Production Capacity: 1000tons/Per Month

Product Description

1.2738 P20+Ni Die Steel Flat Bar of Special Steel

1.2738 P20+Ni 3Cr2NiMnMo is one kind of pre-harndened mirror plasitc die steel. With the alloy optimization and structure control key technology, we can gurantee the steel die block has high hardness uniformity, excellent, polishing property and maching property with largest cross sections in China.

Compare with P20,1.2311 and 3Cr2Mo, 1.2738 P20+Ni 3Cr2NiMnMo will more suitable for larger size plastic parts injection operation,
 
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, Available size(mm)

Flat Bar Size(mm)			Round bar Size(mm)
Thickness	Width	Length	Diameter	Length
21-300	2200	5800	10-350	3000-6000

4, Equivalent Grades

GB	AISI	DIN
3Cr2NiMnMo	P20+Ni	1.2738

5, 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	≤0.03	≤0.03

6, Mechanical Properties

Hardness	Y.S.(0.2%)		UTS		Elongation	RoA	Elastic Modulus
HB	Mpa	KSI	Mpa	KSI	%	Z%	GPA	KSI
300	826	120	993	145	17	59	205	29745

7, Recommend heat treatment

Quenching			Tempering
Heating temperature	Cooling	Hardness/HRC	Heating temperature	Cooling	Hardness/HRC
840-870	OIL OR AIR	≥50	550-640	AIR	28-36

8, Hardness: 33-37HRC

9, Application
 
1.2738 P20+Ni 3Cr2NiMnMo is applicable for large & small plastic mould dies for Automotive Industries, Dies for Domestic goods , High finishing plastic Die, Boaster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc.

10, Product Photos