Materials for Metal 3D Printing
Stainless Steel 630*
*Similar to X5CrNiCuNb16-4(ISO) / S17400(AISI)
Features
Precipitation hardening stainless steels are steels which obtained increased strength by precipitation hardening technique, in addition to great corrosion resistance which stainless steels already have.
The existing high-strength stainless steels have been either the high-carbon martensitic stainless steels made by hardning and tempering techniques, or the austenitic stainless steels hardened by cold working. Both have a limited range of applications.
Precipitation hardening stainless steels are dispersion strengthened by simple solution-to-aging heat treatment which evenly pricipitates the secondary phase particles.
Some of the precipitation-hardened martensitic steels are considered especially important as the tensile strength they show can be as high as 2,000N/mm2, and also have a high fracture toughness in corrosive environments. The precipitation-hardened austenitic steels are useful for their heat resistance at high temperatures.
Japan Industrial Standard (JIS) has 4 categories for the heat treatments which are H900, H1025, H1075, and H1150. The smaller the number is, the higher the hardness is.
Composition
(in %)
| Elements | C | Si | Mn | P | S | Ni | Cr | Cu | Others |
|---|---|---|---|---|---|---|---|---|---|
| Regular material (Representative Values) |
≦0.07 | ≦1.00 | ≦1.00 | ≦0.04 | ≦0.030 | 3.00～5.00 | 15.00～17.50 | 3.00～5.00 | Nｂ0.15～0.45 |
| Powder material (Representative Values) |
≦0.07 | ≦1.00 | ≦1.00 | ≦0.04 | ≦0.030 | 3.00～5.00 | 15.00～17.50 | 3.00～5.00 | Nb+Ta 0.15～0.45 |
Mechanical Properties
| Regular material | After printing | (Reference Values) | ASTM A564M Solution treatment+Age hardening (Reference Values) |
|
|---|---|---|---|---|
| Tensile Strength[MPa] | 1000 or more | Horizontal direction (XY direction) |
770 | 1310 |
| Vertical direction (Z direction) |
||||
| Yield strength Rp0.2[MPa] | 1000 or more | Horizontal direction (XY direction) |
720 | 1200 |
| Vertical direction (Z direction) |
||||
| Elastic Modulus[GPa] | 200 | Horizontal direction (XY direction) |
185 | - |
| Vertical direction (Z direction) |
180 | - | ||
| Elongation[%] | 16 | Horizontal direction (XY direction) |
21 | 12.5 |
| Vertical direction (Z direction) |
||||
| Hardness[HV] | 350 or more | Horizontal direction (XY direction) |
ー | 402 |
| Surface Roughness (Ra) [μm] | ーーー | After printing | ーーー | |
| After blasting | 7.5 | |||
Applications
Aircrafts, Medical apparatus, Dies and molds, Production tools
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- About Us
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Toray Precision is a pioneer in precision micromachining technology.
Since the founding of Toray Precision Co., Ltd. in 1955, we have been contributing to the synthetic fiber industries worldwide, by making spinnerets which is a key technology for synthetic fiber manufacturing.
Our experiences and technologies obtained through our history in the precision micromachining field are widely used in various industries nowadays, including semiconductor, measurement/inspection, aerospace, and medical instruments.