ASTM A312 TP321 UNS 32100 Stainless Steel Seamless Pipe for Furnance
Price:
Negotiable
MOQ:
500kgs
Delivery Time:
Depends on quantity
Brand:
YUHONG
Product Description
ASTM A312 TP321 UNS 32100 Stainless Steel Seamless Pipe
| UNS Designation | C | Mn | P | S | Si | N | Cr | Mo |
| S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0–19.0 | 9.0–12.0 | ... |
YUHONG GROUP is focused on the production of Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 35 years. We have been exported to more than 85 countries.
Outside diameter and Tolerance
| Hot rolled | Outside Diameter, mm | Tolerance |
| 30≤OD≤219.1 | D2, ±1% or ±0.5mm | |
| 219.1＜OD≤610 | D1, ±1.5% or ±0.75mm | |
| Cold Drawn | Outside Diameter, mm | Tolerance |
| OD≤219.1 | D3, ±0.75% or ±0.3mm | |
| OD≤219.1 | D4, ±0.5% or ±0.1mm |
ASTM A312 TP321 Seamless Pipe Mechanical Properties
| Density | 8.027 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength(min) | 515 MPa (75 ksi) |
| Yield Strength (min) | 205 MPa (30 ksi |
| Elongation(min) | 35% (in 50 mm) |
ASTM A312 TP321 Seamless Pipe Testing and Quality Assurance
TP321 pipes undergo rigorous testing to ensure compliance with ASTM A312 standards:
- Non-Destructive Testing (NDT): Includes hydraulic testing, ultrasonic testing, or eddy current testing to detect internal and surface defects.
- Mechanical Tests: Tensile, hardness, and flattening tests to verify mechanical properties.
- Chemical Analysis: PMI (Positive Material Identification) and spectrometry to confirm composition.
- Corrosion Tests: Intergranular corrosion tests (e.g., ASTM A262) to ensure resistance to sensitization.
ASTM A312 TP321 Pipe Comparison with Other Grades
| Grade | Key Differences from TP321 | Typical Use Cases |
| TP304 | Lower cost, no titanium stabilization; prone to sensitization | Low-temperature corrosive environments |
| TP316 | Molybdenum addition for better pitting resistance | Marine and chloride-rich environments |
| TP321H | Higher carbon content (0.04–0.10%) for improved high-temperature strength | High-temperature pressure vessels and boilers |
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai