Austenitic Chromium Nickel 310S Stainless Steel Seamless Pipe ASTM A312 UNS S31008
Price:
Negotiable (Request a Quote)
MOQ:
100kg
Delivery Time:
15-25days
Brand:
Baosteel，TISCO
Product Description
310S Seamless Steel Pipe - ASTM A312 310S Seamless Tube
Product Overview
The 310S seamless pipe is an austenitic chromium-nickel stainless steel grade, known commercially as 2520. With superior oxidation resistance and high-temperature strength, it is the industry standard for continuous operation up to 1200°C (2192°F).
- Standard: ASTM A312 / ASME SA312
- Grade: 310S (UNS S31008)
- Type: Seamless (Hot-finished or Cold-drawn)
- Size Range: 1/8" to 24" (DN6 to DN600)
- Wall Thickness: SCH 5S to SCH XXS
Technical Specifications
Physical Properties
| Parameter | Value |
|---|---|
| Material Type | Austenitic Stainless Steel |
| Density | 7.98 g/cm³ |
| Melting Point | 1400-1450°C (2550-2642°F) |
| Max Service Temp (Continuous) | 1150°C (2100°F) |
| Max Service Temp (Intermittent) | 1040°C (1900°F) |
| Magnetic | Non-magnetic (annealed condition) |
Chemical Composition (%)
| Element | C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 310S | ≤0.08 | ≤1.50 | ≤2.00 | ≤0.045 | ≤0.030 | 24.0-26.0 | 19.0-22.0 |
Mechanical Properties (Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (Min) | 515 MPa (75 ksi) |
| Yield Strength 0.2% (Min) | 205 MPa (30 ksi) |
| Elongation (Min) | 35% |
| Hardness (Brinell) | ≤217 HB |
Manufacturing Process
- Raw Material (Round billet - 310S grade)
- Piercing (Rotary piercing mill at high temp)
- Rolling / Extrusion (Hot finished or cold drawn)
- Solution Annealing (Heat treatment at 1040-1120°C)
- Pickling & Passivation (Descaling & oxide layer removal)
- NDT Testing (UT, ET, or Hydrostatic test)
- Inspection & Marking
Key Advantages
- High-Temp Oxidation Resistance: Forms a tight oxide layer, preventing scaling up to 1150°C
- Creep Strength: Maintains mechanical load under extreme heat
- Corrosion Resistance: Excellent against sulfur-bearing gases and molten salts
- Weldability: Similar to other austenitic grades (use 310S filler metal)
Applications
- Heat Treatment: Furnace parts, radiant tubes, retorts, thermowell sheaths
- Petrochemical: Cracking tubes, reformers, ammonia converters
- Power Generation: Superheater tubes, nuclear reactor components
- Environmental: Industrial incinerators, catalytic converters
- Others: Kilns, combustion chambers, food processing ovens
Maintenance & Storage
- Storage: Keep in a dry, ventilated area. Do not mix with carbon steel (risk of rust staining)
- Cleaning: Avoid chlorine-based cleaners (HCl). Use nitric acid (HNO₃) or citric acid solutions
- Operation: Avoid direct contact with carbon steel above 500°C (prevents carburization). Drain residual liquid during shutdowns to prevent pitting
Ordering Information
To request a quote, please provide:
- Quantity (Meters or Tons)
- Outside Diameter (OD) & Wall Thickness (WT)
- Length (Fixed or Random)
- Standard (ASTM A312, ASME SA312, etc.)
- End Finish (Plain, Beveled, or Threaded)
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Company
Shanxi Zhongcheng Metal Co., Ltd.
Location
Room 2, No. 221 Tianzhang Avenue, Fengdong New City, Xi'an, Shaanxi Province
Contact Person
Zhongcheng Metal