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3D Printing Stainless Steel GP1

3D Printing Technical Parameters

1. The maximum printing size of metal 3D printer: 250x250x325mm;
2. Metal 3D printing printing layer thickness: 0.02mm~0.04mm;
3. Metal 3D printing 3D printing can achieve accuracy: Typical accuracy: ± 0.02-0.05 mm (Accuracy is related to geometry. It varies according to product size, printing direction, materials and post-processing methods.);
4. Post-processing: high temperature annealing, polishing, welding and other processing;

3D Printing Material Characteristics

Stainless steel GP1 is a form of pre-alloyed stainless steel metal powder, and its composition is classified as 17-4 in the United States and 1.4542 in Europe. This type of steel is characterized by good corrosion resistance and mechanical properties, particularly excellent in the state of laser extension treatment, and is widely used in various engineering applications.

Stainless steel 3D printing material data

Recommended minimum wall thickness
20 μm
0.8 mil
Accuracy of parts Small parts ± 20 – 50 μm
large parts 0.3-0.4 mm
Minimum wall thickness
approx. 0.3 – 0.4 mm
approx. 0.012 – 0.016 inch
Surface roughness
After shot peening
Ra 2.5-4.5 μm, Ry 15-40 μm
Ra 0.1-0.2, Ry 0.6-1.6 mil
After polishing treatment
Rz up to < 0.5 μm
It can be very finely polished
The mechanical properties of parts after hardening
Ultimate tensile strength
In the horizontal direction (XY) typical 1100 MPa
(160 ksi)
In the vertical direction (Z) typical 980 MPa
(142 ksi)
Yield strength
(REL, lower yield strength)-in the horizontal direction (XY) typical 590 Mpa
(86 ksi)
In the vertical direction (Z) typical 550 MPa
(80 ksi)
(ReH, upper yield strength)-in the horizontal direction (XY) typical 634 MPa
(92 ksi)
Vertical direction (Z) typical 595 MPa
(86 ksi)
Young’s modulus
typical 180 GPa
(26 msi)
Elongation at break
typical 29 %
typical 31 %
Hardness approx. 250-400 HV1


1、1、According to ISO 6892:1998 Mechanical Test (E) Annex C proportional sample, neck diameter area 5mm, original gauge length 25mm.

2, Vickers hardness measurement (HV) is based on DIN EN ISO 6507-1. Please note that depending on the method used for this measurement, the measured hardness value can depend on the surface roughness and can be lower than the true hardness. To avoid inaccurate results, the hardness should be measured on the polished surface.

The thermal performance of parts
The thermal conductivity (typical value)
At 20°C (68°F) 13 W/m °C
90 Btu/(h ft² °F/in)
At 100°C (212°F)
14 W/m °C
97 Btu/(h ft² °F/in)
At 200°C (392°F)
15 W/m °C
104 Btu/(h ft² °F/in)
At 300°C (572°F)
16 W/m °C
111 Btu/(h ft² °F/in)
Coefficient of thermal expansion. 20-600°C (68-1080°F)
14 x 10-6 m/m °C
7.8 x 10-6 in/in °F
Maximum operating temperature
550 °C
1022 °F

*All values are taken from the documentation provided by the manufacturer of the special material. PTJ3D printing company. No claims are made to the accuracy of these data, as each individual application may vary. If you have any questions, please contact the manufacturer to give specific product information.

Table of Contents

Why Choose Our 3D Printing Stainless Steel GP1 Steel Service?

PTJ meets or exceeds the quality standards of the world’s most demanding industries with our state of the art equipment and quality standards. Our precision and productivity is made possible by our ultimate success factor: the presence of skillful, knowledgeable PTJ experts in Stainless Steel GP1 3d printing and more additive manufacturing parts.

Why Choose Service – As an accomplished 3d printing company and Additive manufacturing shop, PTJ has been specialized in OEM 3d printing, custom 3d printing parts production and rapid 3d printing services China for over 10 years and always maintaining the highest standard in delivery speed and reliable quality of precision additive manufacturing components. With the help of high-level technology and efficient equipment, as well as rigorous attitude, we passed the ISO9001:2015 quality certification, which supports the long-term development of Our SLA 3d printing services, SLS 3d printing services, fdm 3d printing services, DLP 3d printing services, SLM 3d printing services, MJF 3d printing services, 3d printing China custom parts and service, small prototype parts customized, etc. professional 3d printing involves metal 3d printing, plastic 3d printing, and some difficult materials. Our 3d printing products can be utilized in a broad range of industries.

If you are looking for quality 3d printing services near me, our low cost 3d printing process will review the design, build your quote, assess the cost and get your non-metal or metal fabrication parts into production orderly and efficiently.


Comprehensive Solution

According to the real needs of customers, formulate the most suitable comprehensive solutions, optimize cost performance, and benefit customers

One-stop Service

It can provide a variety of services such as 3D scanning, 3D modeling, data processing, reverse engineering, 3D printing, post-processing, etc. at the same time

Strong Service Capability

With dozens of experienced foreign trade salesmen, they can provide consulting and follow-up services for customers in different regions at any time

Data Security System has a strict internal confidentiality system, and can sign specific confidentiality agreements according to customer needs

3D Printing China

PTJ offers online 3D printing services for china rapid prototyping and production of non-metal and metal 3D printed parts at affordable prices.

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Free 3D Printing Quote Process
Upload drawing files (PDF, DXF, IGES, STEP). You can easily register multiple drawings at once with the drawing file batch registration (EDI).
  • * Supports drawing uploads in file formats “.pdf”, “.jpg”, and “.png”.
  • * Supports file uploading and loading of 3D (3D) CAD data “.igs” and “.step”.
  • * Supports file uploading of two-dimensional (2D) CAD data “.dxf” and “.dwg”.
Quotation confirmation / order The shortest estimate from drawing data. Check the quotation on a PC etc. and place an order (order). * Estimates can be confirmed from the member-only management screen (PC, smartphone, tablet).
Started 3D Printing/Rapid Prototyping and production After accepting the request, Rapid Prototyping and manufacturing work is started by a specialist in 3D Printing,Cnc Machining, prototyping, and equipment. You can monitor the progress from your PC, smartphone, tablet, etc.
Finished product inspection / shipping Processing and production completed. After a strict check, we will promptly deliver to the designated delivery destination. Please look forward to the arrival of the finished product.
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