Bright Annealed ASTM A249 TP316L Stainless Steel Welded Tube For Diary Industry
Bright Annealed ASTM A249 TP316L Stainless Steel Welded Tube For Diary Industry
ASTM A249 TP316L Bright Annealed Stainless Steel Welded Tube refers to an electric-fusion-welded(EFW) or electric-resistance-welded(ERW) tube wgich is made from TP316L stainless steel, and manufactured in accordance with ASTM A249 specification. This tube is primarily intended for boilers, superheaters, heat exchangers, condensers, and other high-temperature or corrosive service applications requiring superior weld quality and surface integrity. Bright Annealing distinguishes this tube from standard annealed and pickled tubes. The process is performed in a protective atmosphere furnace, which eliminates scaling and oxidation. The resulting surface is smooth, bright, and passive, making it ideal for hygienic, high-purity, or aesthetic-critical applications. YUHONG GROUP has manufactured ASTM A249 / ASME SA249 stainless steel welded tubes for many years with strict quality control. Our stainless steel tubes have been exported to 85 countries, such as Korea, UAE, Thailand, The South Africa, Brazil, and so on. We can produce ASTM A249 Stainless Steel Welded Tubes from 6mm to 152.4mm diameter typically. The length of each tube can be 35 meter maximum.
Regular Sizes Of ASTM A249 Stainless Steel Welded Tube:
| Item | Common Range | Typical Standard Sizes |
| Outer Diameter | 6.35mm (1/4") to 101.6mm (4") | 9.53mm (3/8"), 12.7mm (1/2"), 19.05mm (3/4"), 25.4mm (1"), 38.1mm (1.5"), 50.8mm (2"), 76.2mm (3"), 101.6mm (4") |
| Wall Thickness | 0.5mm to 3.4mm | 0.7mm, 0.9mm, 1.0mm, 1.2mm, 1.5mm, 1.65mm, 2.0 mm, 2.5mm, 3.0mm |
| Length per Piece | Random Length: 3–6 meters Fixed Length: 6 meters, 12 meters |
6000mm (standard export length) 12000mm (upon request) |
Mechanical Properties:
| Tensile Strength | ≥ 70ksi (≥485MPa) |
| Yield Strength (0.2% Offset) | ≥ 25ksi (≥170MPa) |
| Elongation (in 2" or 50mm) | ≥35% |
| Hardness (HRB) | ≤ 90 HRB (typical: 75–85 HRB) |
Different Applications of ASTM A249 TP316L Welded Tubes:
1. Heat Transfer & High-Temperature Equipment
Shell and tube heat exchangers
Condensers and evaporators
Boiler feedwater heaters
Superheater and reheater tubes
2. Hygienic & Pharmaceutical Industry
Clean steam distribution lines
High-purity water systems
Bioreactor and fermenter coils
CIP and SIP lines
3. Chemical & Petrochemical Processing
Transfer lines for organic acids
Chloride-containing process streams
Heat exchanger tubes in sour gas service
4. Food & Beverage
Milk and dairy pipelines
Brewery wort and beer transfer tubes
Edible oil processing
5. Semiconductor & Ultra-High Purity
Specialty gas delivery lines
Corrosive gas handling (with electropolished BA finish)
6. Marine & Desalination
Freshwater and brine lines
Heat exchanger tubes in seawater-cooled condensers
7. Architectural & Decorative
Handrails, balustrades, and structural tubes
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