ASTM A213 TP321 12Х18Н10Т Stainless Steel Seamless Tube for High-Temperature and Corrosion Resistant
Price:
Negotiable
MOQ:
10PCS
Delivery Time:
Depends on quantity
Brand:
YUHONG
Product Description
ASTM A213 TP321 / S32100 / 12Х18Н10Т Seamless Tube
High-temperature and corrosion-resistant seamless austenitic stainless steel tubing engineered for demanding industrial applications.
Product Overview
ASTM A213 TP321 is a seamless austenitic stainless steel tube specifically engineered for high-temperature and corrosive service environments. The grade is stabilized with titanium, which provides exceptional resistance to intergranular corrosion and makes it suitable for a wide range of demanding industrial applications, from boilers to chemical processing equipment.
Standards and Specifications
This product is manufactured in strict compliance with the latest international standards:
- Primary Standard: ASTM A213/A213M - Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
- Related Standard: ASTM A312/A312M for seamless austenitic stainless steel pipes
- Key Designation: The "TP" stands for "Tube, Pipe." The "H" variant (TP321H) has a higher carbon content for improved creep-rupture strength at elevated temperatures
- Common Size Range: While custom sizes are available, typical tubing supplied to this specification has an outside diameter ranging from 3.2 mm (1/8 in) to 127 mm (5 in) with wall thicknesses from 0.4 mm to 12.7 mm
Material and Chemical Composition
TP321 is a titanium-stabilized derivative of the classic 18-8 (Cr-Ni) stainless steel. The addition of titanium (at least 5 times the carbon content) prevents chromium carbide precipitation at grain boundaries during high-temperature exposure, thereby maintaining its corrosion resistance.
The Russian grade 12Х18Н10Т is a direct equivalent, sharing nearly identical chemical and mechanical properties, making this tubing a versatile choice for global projects.
A typical chemical composition is shown in the table below:
| Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Titanium (Ti) |
|---|---|---|---|---|---|---|---|
| 0.08% | 2.00% | 0.045% | 0.030% | 1.00% | 17.0 - 19.0% | 9.0 - 12.0% | 5C - 0.70% |
Mechanical and Physical Properties
ASTM A213 TP321 tubes are required to undergo mechanical testing, including tension and flattening tests, and are supplied in a heat-treated condition. The following table outlines its key mechanical properties at room temperature.
| Property | Typical Value | Standard / Condition |
|---|---|---|
| Tensile Strength | ≥ 515 MPa (75 ksi) | ASTM A213 |
| Yield Strength (0.2% Offset) | ≥ 205 MPa (30 ksi) | ASTM A213 |
| Elongation | ≥ 35% | In 2 inches or 50 mm |
| Hardness | ≤ 192 HB / 90 HRB | Brinell or Rockwell B |
| Primary Advantage | Excellent high-temperature strength & intergranular corrosion resistance | Stabilized with Titanium |
Primary Applications
Due to its stability and strength under heat, TP321 seamless tubes are critical components in several heavy industries:
- Heat Exchangers & Boilers: Widely used in boiler superheater and reheater tubes, heat exchangers, and condenser tubes
- Petrochemical Industry: Ideal for refinery piping, furnace components, and equipment handling corrosive chemicals
- Power Generation: Suitable for high-temperature steam and feedwater lines in fossil fuel power plants
- Automotive & Aerospace: Used in engine exhaust systems and other high-temperature assemblies
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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