316L Stainless Steel Bright Annealed (BA) Pipe for High-Purity Gas and Medical Applications

316L Stainless Steel Bright Annealed (BA) Pipes are ultra-low carbon stainless steel pipes (C≤0.03%) with superior corrosion resistance, particularly suitable for conveying corrosive gases and medical gases. Manufactured through a specialized bright annealing process in an inert or reducing atmosphere, these pipes feature a high-gloss, oxide-free surface with excellent surface finish and cleanliness. With precise dimensional tolerances and high-purity surface requirements, they are the ideal material for critical applications in semiconductor, pharmaceutical, food, and high-tech industries.

Other Available Materials: 304, 304L, 316, 316Ti, 321, 347H, 310S, 904L, 2205, 2507, 2520, C276

Imperial Size Reference:

• 1/4" (6.35mm OD), 3/8" (9.53mm), 1/2" (12.70mm), 3/4" (19.05mm), 1" (25.40mm)

• 1-1/2" (38.10mm), 2" (50.80mm), 2-1/2" (63.5mm), 3" (76.20mm), 4" (101.60mm), 5" (152.4mm)

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• Electrical Resistivity: 74×10⁻⁸ Ω·m

• Specific Heat Capacity: 0.5 Kj/(Kg·°C) (0-100°C)

• Oxidation Critical Temperature: Continuous use 900°C, Intermittent use 810°C

• Corrosion Resistance: Excellent, especially in chloride environments (approx. 30% lower corrosion rate in 5% NaCl solution)

• Tests: Intergranular corrosion test (oxalic acid etch), Salt spray test (GB/T 10125-2012)

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• Hydrostatic Test: 2.5x working pressure, hold 5 seconds (leak-free)

• Non-Destructive Testing: Eddy current, Ultrasonic thickness measurement

• Hardness Test: Cold-drawn ≤250 HBW, Solution-treated ≤217 HBW

• Food/Pharma Compliance: GB 4806.9-2016 migration test requirements

• Superior Corrosion Resistance: Ideal for chloride and acidic environments

• High Surface Purity: Oil-free, contaminant-free surface suitable for high-purity applications

• Excellent Dimensional Precision: Tight tolerances for critical installations

• Versatile Material Options: Available in various stainless steel grades

• Industry Compliance: Meets international standards for multiple sectors

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• Semiconductor Industry: Ultra-high purity gas delivery systems

• Pharmaceutical/Biotech: Medical devices, bioprocessing equipment

• Food & Beverage: Sanitary process piping, purification systems

• Instrumentation: Precision instrument and analytical system piping

• Chemical Processing: Corrosive fluid and gas transfer lines

• Energy Sector: Hydrogen energy, solar, photovoltaic systems

• Aerospace: High-precision tubing, hydraulic systems

• Protective Packaging: Individual pipe bagging, end caps, anti-static bags

• Secure Shipping: Bubble wrap cushioning, wooden crates or woven bags

• Clear Marking: Spray-coded material, size, and specification information

• Storage: Dry, ventilated environment away from corrosive substances