310S Stainless Steel Powder for High-Temperature AM

310S Stainless Steel Powder

310S Stainless Steel Powder is a high-alloy austenitic chromium-nickel stainless steel powder specifically designed for extreme high-temperature applications. With its exceptional oxidation resistance, corrosion resistance, and outstanding creep strength, it is the material of choice for components operating in severe thermal environments up to 1150°C (2100°F) continuously.

Core Characteristics

Ultra-High Temperature Capability: Continuous service up to 1150°C, short-term exposure to 1200°C
Exceptional Oxidation Resistance: Forms a protective, adherent chromium oxide scale that resists spalling even under thermal cycling
Superior Corrosion Resistance: Excellent resistance to sulfidation, carburization, and various aggressive chemical environments
High Creep Strength: Maintains structural integrity and dimensional stability under prolonged high-temperature stress
Good Thermal Shock Resistance: Withstands rapid temperature changes without cracking or failure

Typical Chemical Composition (wt.%)

表格

Element	Content Range (%)	Function
Chromium (Cr)	24.0 – 26.0	Provides oxidation resistance, forms protective scale
Nickel (Ni)	19.0 – 22.0	Stabilizes austenitic structure, enhances high-temperature strength
Carbon (C)	≤ 0.08	Strengthens at high temperatures, controlled to avoid sensitization
Silicon (Si)	≤ 1.50	Improves oxidation resistance, deoxidizer
Manganese (Mn)	≤ 2.00	Austenite stabilizer, improves hot workability
Phosphorus (P)	≤ 0.035	Impurity, requires strict control
Sulfur (S)	≤ 0.030	Impurity, requires strict control
Iron (Fe)	Balance	Base element

📊 Mechanical Properties (Annealed Condition)

Property	Typical Value	Standard
Tensile Strength	≥ 520 MPa	ASTM A240
Yield Strength	≥ 205 MPa	ASTM A240
Elongation	≥ 40%	ASTM A240
Hardness	≤ 187 HB	ASTM E10
Density	~7.9 g/cm³	—

High-Temperature Performance

Temperature	Tensile Strength	Creep Rupture Strength (1000h)
800°C	~250 MPa	~80 MPa
900°C	~180 MPa	~50 MPa
1000°C	~120 MPa	~30 MPa
1100°C	~70 MPa	~15 MPa

Major Application Fields

High-Temperature Furnace Components: Heating elements, radiant tubes, muffles, retorts, burner nozzles
Petrochemical Industry: Catalytic reformer tubes, ethylene cracking furnace tubes, heat exchangers
Power Generation: Boiler tubes, superheater components, gas turbine parts
Aerospace: Jet engine components, exhaust systems, afterburner parts
Heat Treatment Equipment: Fixtures, baskets, trays, conveyor systems
Glass Manufacturing: Forehearth components, stirrers, thermocouple protection tubes
Cement Industry: Kiln components, burner pipes, refractory anchors

310S vs 309S vs 316L vs 304L

Feature	310S	309S	316L	304L
Chromium	24-26%	22-24%	16-18%	18-20%
Nickel	19-22%	12-15%	10-14%	8-12%
Molybdenum	None	None	2-3%	None
Max Continuous Temp	1150°C	1000°C	870°C	870°C
Oxidation Resistance	Excellent	Very Good	Good	Good
Creep Strength	Excellent	Very Good	Moderate	Moderate
Cost	Highest	High	Moderate	Lower
Best For	Extreme high-temp	High-temp	Marine/Chemical	General purpose

Heat Treatment & Processing

Solution Annealing: 1040-1150°C followed by rapid cooling (water quench or air cool)
No Hardening by Heat Treatment: Austenitic structure cannot be hardened; strengthening achieved through solid-solution strengthening
Welding: Excellent weldability using matching filler metals (e.g., ER310); post-weld annealing recommended for critical applications

Additive Manufacturing Performance Parameters

Parameter	Typical Value	Description
Particle Size Distribution	15-53 μm	Optimized for SLM/DMLS processes
Sphericity	≥95%	Ensures excellent flowability and packing density
Apparent Density	≥4.0 g/cm³	High powder density for efficient recoating
Tap Density	≥4.8 g/cm³	High packing efficiency
Oxygen Content	≤0.1%	Low impurity for high-quality parts
Flowability	≤20 s/50g	Excellent for automated powder handling

Important Considerations for AM

Porosity Control: Dense parts (>99.5%) essential for high-temperature service to prevent oxidation penetration

Thermal Expansion: High coefficient of thermal expansion requires careful build orientation and support design

Residual Stress: High-temperature capability means parts may experience significant residual stresses; stress-relief annealing recommended

Surface Finish: May require post-processing (machining, polishing) for critical high-temperature applications

5. Customization Services by Forgecise

Forgecise provides comprehensive stainless steel powder customization solutions, covering the full range of products from standard grades to customer-specific formulations. We support mainstream grades such as 17-4PH, 15-5PH, 316L, 304L, 420, 440C, 13-8PH, and can adjust composition, particle size distribution, and sphericity according to your application requirements. Whether it’s small-batch samples for R&D (starting from 1kg) or ton-level orders for mass production, we ensure high purity, low oxygen content, and excellent flowability of our powders, meeting the requirements of various processes including SLM, EBM, MIM, and LMD.

FAQ:

Q1: What types of stainless steel powders can Forgecise customize?

A: We provide a comprehensive range of customized stainless steel powder solutions to meet diverse industrial needs, including:
Precipitation Hardening Series: Such as 17-4PH (S17400), 15-5PH, etc., ideal for high-strength structural parts.
Austenitic Series: Including 316L (1.4404), 304L, and 316LN, offering excellent corrosion resistance and ductility.
Martensitic Series: Such as 420 (1.4028) and 440C, suitable for tools, molds, and wear-resistant components requiring high hardness.
Specialty Alloys: Including high-temperature resistant series or customer-specified proprietary formulations.
Whether it is standard grades or newly designed compositions for specific environments, we can realize powder production from laboratory scale to mass production.

Q2: Can the particle size and morphology of customized powders be precisely controlled?

A: Absolutely. Through advanced gas atomization (GA) and vacuum induction melting gas atomization (VIGA) technologies, we provide precise control over particle size distribution and sphericity:
Particle Size Range: D50 customizable from 15–100 μm (e.g., 15–53μm for high-precision SLM, 45–105μm for general SLM, or 50–150μm for DED/Laser Cladding).
Morphology Requirements: High sphericity (≥0.9), smooth surface, and low satellite content, ensuring excellent flowability and high packing density.
Special Requirements: Available options include narrow size distribution and ultra-low oxygen content control.

Q3: How long does the customization process take? How is quality guaranteed?

A: Development Timeline: Small-batch prototyping (1–10kg) typically takes 3–4 weeks; mass production orders vary based on scale.
Quality Assurance: Each batch comes with comprehensive quality reports, including:
Chemical Composition: Precise analysis of alloying elements and interstitials (C, N, O, H).
Particle Size Distribution: Laser diffraction analysis.
Powder Characterization: Flowability and apparent density.
Morphology: SEM images to verify surface quality and internal porosity.
Standards Compliance: Strictly adheres to ASTM, ISO, GB, and other international standards, ensuring consistency for critical applications.

Q4: What is the minimum order quantity (MOQ)? Do you support R&D-scale small batches?

A: Flexible solutions for all development stages:
R&D Validation: Supports orders starting from 1kg, facilitating material screening and process parameter optimization.
Pilot Production: 10–100kg batches with rapid delivery to support pilot runs.
Scaled Supply: Ton-scale continuous production capacity ensuring a stable supply chain for industrial manufacturing.
We understand that innovation begins with small steps, so we provide barrier-free customization access for startups, universities, and research institutions.

Q5: How do I initiate a customization project? What information is required?

A: Three simple steps to get started:
Requirement Discussion: Provide target application scenarios (e.g., medical instruments, automotive parts, marine components), key performance requirements (corrosion resistance, hardness, toughness, etc.), and preferred particle size.
Solution Design: Our materials engineers will recommend the optimal alloy system, atomization process, and cost-effective solutions.
Sample Confirmation: Deliver prototype powder → Customer validation (printing/sintering) → Mass production delivery.
Simply submit your preliminary requirements via email or online form, and we will provide technical support within 48 hours!

Key Features

High Speed, High Precision, High Quality

Laboratory setting showing gloved hands holding innovative 3D printed metal structures.

Forgecise Metal 3D Printers – SLM Series

Excellent as-built surface finish – Parts achieve good surface quality without post-polishing.
High dimensional accuracy – Ideal for producing precision prototypes.
Direct fabrication of metal end-use parts – Eliminates intermediate steps.
Fully dense metallurgical structure (>99% density) – Eliminating the need for post-processing.
Rapid build times – Parts can be completed depending on size and complexity.
Complex geometries made possible – Functional features such as snap-fits and living hinges can be printed directly.
Broad material compatibility – Supports a wide range of metal powders.
Perfect for custom, low-volume production – small-batch manufacturing.

310S Stainless Steel Powder for High-Temperature AM Continuous Service | Forgecise

Specifications

Resources

Product Description