Name: China Alloy Steel Round Bar 20Cr2Ni4A Manufacturers, Suppliers, Factory - SCLF - Liaofu
Brand: Liaofu
SKU: 161462743

Alloy Steel Round Bar 20Cr2Ni4A

20 Cr2Ni4A is widely used for large cross-section carburized parts,
such as large gear, shaft,
and conditioning components requiring high strength,
and good toughness.
20Cr2Ni4A chemical composition %: 20Cr2Ni4A mechanical properties:
20Cr2Ni4A condition of delivery:
heat treatment(Normalizing,...

Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of alloy steel round bar 20cr2ni4a in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.

Production

20 Cr2Ni4A is widely used for large cross-section carburized parts, such as large gear, shaft, and conditioning components requiring high strength, and good toughness.

20Cr2Ni4A chemical composition %:

Grade	Chemical composition %:
Grade	C	Si	Mn	P	S	Cr	Ni
20Cr2Ni4A	0.17-0.23	0.17-0.37	0.30-0.60	≤0.03	≤0.03	1.25-1.65	3.25-3.65

Production

20Cr2Ni4A mechanical properties:

Grade	Mechanical properties:
	Tensile strengthσb (Mpa)	Yield strengthσ0.2 (Mpa)	Elongationσ5 (%)	reduction of area ψ (%)	Hardness	Notched bar impact strength αkv (J/cm2)
	min	min	min	min	max	min
20Cr2Ni4A	1483	1292	13	57	434HB	75

Production Introduction

20Cr2Ni4A condition of delivery:

heat treatment(Normalizing, Annealing, or high temperature tempering) or do not heat treatment state.

Implementation of the standards: GB / T3077-1999
Tensile strength b (MPa)1175
Yield strength s (MPa)1080
Elongation 5 (%)10
Section shrinkage (%)45
Impact energy Akv (J)63
Impact toughness kv (J / cm2)78
Hardness269HB

Production

20Cr2Ni4A heat treatment process:
Quenching temperature: the first heating 880 ºC; the second heat 780 ºC; coolant: Oil
Tempering heating temperature: 200 ºC; Coolant: water, air
20Cr2Ni4A purposes:
For the manufacture of small and medium sized cars, tractor engine and transmission in gear, manufacture of high performance core part of carburized parts, cyanide parts, such as oil drilling and metallurgical open pit with claws and teeth cone body.

Ck45 4140 18crnimo7-6 Forged Steel Bar/Hot Forging Parts/Forged Bars

DIN 17CrNiMo6, 18crnimo7-6 Anealing Forged Sleeves Hollow Shaft Heat Treatment

Packaging & Shipping

In order to avoid the finish products rusted and damaged during the transportation ,we will design the right packing according to the shape,size and usage of the products.