1.2311 P20 3Cr2Mo Plastic Mechanical Steel Round Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Alloy Steel
• Technique: Hot Rolled
• Shape: round/plate/sheet/flat bar
• Surface Treatment: black
• Model NO.: 1.2311 P20 3Cr2Mo
• Special Use: High-strength Steel Plate, Free Cutting Steel, Mold Steel
• Application: Structural Steel Bar
• Heat trearment: Q+T
• Delivery Condition: Forged or Hot Rolled
• Test: SGS/Ut 100%/Element Testing
• Certificate: ISO / Mill Certificate
• Service: Sample free and 24 hours online
• payment: TT/LC
• Transport Package: Nake
• Specification: diameter: 10-350mm; length: 3000-6000mm
• Trademark: CF STEEL
• Origin: China
• HS Code: 72159000
• Production Capacity: 1000t/Month

Product Description

1.2311 P20 3Cr2Mo Plastic Mechanical Steel Round Bar

1. Chemical Composition(Wt%)

1.2311	C%	Si%	Mn%	Cr%	Mo%	S%	P%
	0.35-0.45	0.20-0.40	1.30-1.60	1.80-2.10	0.15-0.25	≤0.030	≤0.030

2. Available size

Plate	Thickness	10-460mm
	Width	2200mm
	Length	5800mm
Flat bar	Thickness	10-460mm
	Width	155-2200mm
	Length	2200-5800mm
Round bar	Diameter	10-350mm               (>260mm forged)
	Length	3000-6000mm
Block	Thickness	350-1000mm
	Width	800-1600mm
	Length	2000-6000mm

 

3. Heat Treatment

Annealing	710-730ºC
Hardness after annealing	Max 230HB
Stress relieving	Approx 650ºC
Hot forming	850-1050ºC
Hardening	870-890ºC
Quenching media	Oil,salt bath,vacuum
Hardness after quenching	50-54HRC
Hardness after tempering	100ºC	200ºC	300ºC	400ºC
	54HRC	54HRC	53HRC	50HRC

4. Applications:
Used for various lager-sized or medium-size precision plastic mould and alloy parts.
1, Ideally suited for the production of plastic moulds;
2, Die holders, zinc die casting dies, backers, bolsters and injection moulds;
3, Shafts, rails and wear strips;
 
5. Product pictures