ASTM A312 TP 316L Stainless Steel Electropolished Pipes

ASTM A312 TP 316L Stainless Steel Electropolished Pipes

ASTM A312 TP 316L Stainless Steel Electropolished Pipes are low-carbon, molybdenum-bearing austenitic stainless steel pipes designed for superior corrosion resistance and hygienic performance. The reduced carbon content minimizes carbide precipitation during welding, making 316L ideal for applications where post-weld heat treatment is not feasible.

The electropolishing process enhances the natural chromium-rich passive layer, producing an ultra-smooth, bright, and contamination-free surface. This improves resistance to pitting, crevice corrosion, and bacterial adhesion, making TP 316L electropolished pipes highly suitable for high-purity and sterile environments.

Specifications

Standard	ASTM A312 / ASME SA312
Grade	TP 316L
Type	Seamless / Welded & Electropolished
Size Range	1/8" NB to 24" NB
Wall Thickness	Schedule 5S to Schedule 80S
Surface Roughness	Ra ≤ 0.4 µm (or as per customer requirement)
Length	6 Meters Standard / Custom Length
End Type	Plain End, Beveled End

Key Features

• Low Carbon Content: Prevents intergranular corrosion after welding.
• Molybdenum Enhanced: Excellent resistance to chlorides and aggressive chemicals.
• Electropolished Finish: Ultra-clean and smooth surface for hygienic applications.
• Improved Passive Layer: Enhanced corrosion protection and durability.
• High Strength & Reliability: Performs well under pressure and temperature variations.

Chemical Composition (Typical)

Element	TP 316L (%)
Carbon	0.03 Max
Chromium	16.0 – 18.0
Nickel	10.0 – 14.0
Molybdenum	2.0 – 3.0
Manganese	2.00 Max

Applications

• Pharmaceutical & Biotechnology Facilities
• Food & Beverage Processing Plants
• Chemical & Petrochemical Industries
• Marine & Coastal Environments
• High-Purity Water & Clean Utility Systems

Quality Testing

• Hydrostatic Testing
• Ultrasonic Testing (UT)
• Surface Roughness (Ra) Measurement
• Positive Material Identification (PMI)
• Dimensional Inspection

Conclusion

ASTM A312 TP 316L Stainless Steel Electropolished Pipes combine low-carbon weldability, molybdenum-enhanced corrosion resistance, and a superior electropolished surface finish. These properties ensure exceptional hygiene, durability, and long-term performance in demanding industrial and high-purity applications.