Equivalent materials: 1.4021/1.4028 SAE 51420 AISI 420 GD 420 is a vacuum induction melted, argon gas atomized, and spherical powder for additivemanufacturing. It is a general-purpose medium carbon-chromium hardenable martensitic steel with good strength and good corrosion resistance in mild environments. It is capable of being through hardened up to 50 HRC by air-cooling in medium and small sections. Typical applications are cutting utensils, surgical and dental instruments, molds and multi-purpose tools.

Classification：

Steel-based metal powders for AM

Hotline:

+86 0412 5263110

Description

GD 420

Equivalent materials:

1.4021/1.4028

SAE 51420

AISI 420

GD 420 is a vacuum induction melted, argon gas atomized, and spherical powder for additive manufacturing. It is a general-purpose medium carbon-chromium hardenable martensitic steel with good strength and good corrosion resistance in mild environments. It is capable of being through hardened up to 50 HRC by air-cooling in medium and small sections. Typical applications are cutting utensils, surgical and dental instruments, molds and multi-purpose tools.

Chemical composition, %

Element	Cr	Mn	Si	C	Fe
Content, %	12.5	1.2	0.5	0.23	Balance

Typical powder properties

Nominal particle range	Hall flow	Apparent density
15–45 µm	18 s/50 g	4.0 g/cc
Other particle range	0-25 µm 50-150 µm

Heat treatment: Stress relieved at 200 °C in air .Stress relieved at 650 °C in Ar .Quenched and Tempered – Austenitized at 980 °C in Ar followed by oil quench, Tempered at 200 °C in air.

keyword：

1.4021

420

1.4028

SAE 51420

AISI 420

powder

additive manufacturing

contact us

+86-0412-5263110

+86-0412-6938888

Address: No. 42, Grating Road, Laser Industrial Park, Anshan City, Liaoning Province

Email：SD@lngdkj.cn

hotline

+86 0412 5263110