420 stainless steel powder — supplier & RFQ
Hardenable martensitic stainless powder for plastic mold inserts, corrosion-resistant tooling, and wear parts.
- PSD15–45 µm · 15–53 µm
- ProcessLPBF
- Ref. priceOn request
- Min. pack1 kg
- Grade
- 420 · S42000
- Particle size
- 15–45 µm · 15–53 µm
- Processes
- LPBF
- Reference price
- On request
- Samples
- Paid · from 1 kg
- Packaging
- Aluminium-foil bag · 1 kg sealed pack · Drum
- Lot documents
- Lot-specific COA · Particle-size report · Safety data sheet · Chemistry report
420 stainless steel powder applications by industry
| Industry | Typical parts | Why 420 stainless steel | Specify in your RFQ |
|---|---|---|---|
| Plastic injection molds | Corrosion-resistant mold inserts with conformal cooling | Hardenable martensitic stainless that resists rust from coolant and humid storage | Hardness after heat treatment, polishability, channel cleaning |
| Cutting and surgical tools | Blades, instrument parts | Martensitic stainless that takes a hard edge | Hardness, sterilization route, surface finish |
| Wear parts | Pump wear rings, valve trim in mild media | Hardness with moderate corrosion resistance | Media, hardness target, mating material |
Designations
- 420
- UNS S42000
- EN 1.4021
Use 420, UNS S42000, or EN 1.4021 and state the carbon range, because 420-family grades vary from about 0.15% to over 0.3% carbon.
Particle size and powder properties
- Standard cuts
- 15–45 µm · 15–53 µm
- Processes
- LPBF
- Typical uses
- Plastic injection mold inserts · Corrosion-resistant tooling · Hardened wear components
Chemical composition
| Fe | Cr | C | Mn | Si | Ni | P | S |
|---|---|---|---|---|---|---|---|
| Balance | 12.0–14.0 | 0.16–0.25 | ≤1.00 | ≤1.00 | ≤0.75 | ≤0.04 | ≤0.03 |
wt.% · Typical partner-plant limits for 420 powder per GB/T 20878 (X20Cr13 type), wt.%. The quoted lot COA governs.
Typical mechanical properties
| Condition | Temperature | Tensile | Yield | Elongation |
|---|---|---|---|---|
| Partner typical value | Room temperature | 1750 ± 50 MPa | 1450 ± 50 MPa | 6 ± 2% · Post-processing condition confirmed per datasheet |
Partner-plant datasheet values for LPBF test bars at room temperature unless stated. Printed-part properties depend on machine, parameters, orientation, and post-processing.
Documents and packaging
Supplied with each lot
- Lot-specific COA
- Particle-size report
- Safety data sheet
- Chemistry report
State the chemistry basis including carbon range, target hardness after tempering, and polishing or corrosion requirements for the tool.
Packaging
- Aluminium-foil bag — very small quantities and paid samples
- 1 kg sealed pack — minimum standard package
- Drum — production lots
Samples are paid. The smallest standard pack is 1 kg.
Export
Export & compliance →For every Stainless Steel 420 order we check export-control classification and transport requirements before quoting a ship date, and prepare the SDS, transport classification and shipping documents as one set.
Price
Reference · October 2026
On request
No reliable public list price was found for this grade. Reference only, not an offer. Formal prices, lead time, and terms are issued only in a written quotation from our official corporate email.
Other stainless steel grades
| Powder | Particle size | Process |
|---|---|---|
| 316L stainless steel powder | 15–45 µm · 15–53 µm · 45–106 µm | LPBF · DED · Binder jet · MIM |
| 17-4PH stainless steel powder | 15–45 µm · 15–53 µm · 45–106 µm | LPBF · Binder jet · MIM |
| 15-5PH powder | 15–45 µm · 15–53 µm | LPBF |
| 304L stainless steel powder | 15–45 µm · 15–53 µm · 45–106 µm | LPBF · DED |