ASTM A312 TP 316

ASTM A312 TP 316

ASTM A312 TP 316 Stainless Steel Mechanical Polish Pipes are premium-grade austenitic stainless steel pipes manufactured with a high-quality mechanical polishing finish to achieve a smooth, uniform, and aesthetically refined surface. Produced in compliance with ASTM A312 / ASME SA312 standards, these pipes are specifically designed for applications requiring superior corrosion resistance, hygiene, and enhanced surface appearance.

Grade TP 316 stainless steel contains molybdenum, which significantly improves resistance to pitting and crevice corrosion, especially in chloride and marine environments. The mechanical polishing process further enhances the surface smoothness, making these pipes ideal for sanitary, chemical, pharmaceutical, marine, and architectural applications.

Specifications

Standard	ASTM A312 / ASME SA312
Grade	TP 316
Manufacturing Process	Welded / ERW
Size Range	1/2" NB to 24" NB
Wall Thickness	Schedule 5S to Schedule 80S
Length	6 Meters Standard / Custom Cut Length
Surface Finish	Mechanical Polish (180 Grit, 240 Grit, 320 Grit, 400 Grit)
End Type	Plain End, Beveled End, Threaded

Key Features & Benefits

• Enhanced Corrosion Resistance: Excellent resistance to chlorides, chemicals, and marine environments.
• Molybdenum Alloyed: Provides improved pitting and crevice corrosion resistance.
• Superior Surface Finish: Smooth, polished surface for decorative and hygienic applications.
• High Strength & Durability: Suitable for demanding industrial conditions.
• Excellent Weldability: Easy fabrication without compromising corrosion resistance.
• Low Maintenance: Long service life with minimal upkeep.

Chemical Composition (Typical)

Element	Composition (%)
Carbon (C)	0.08 Max
Chromium (Cr)	16.0 – 18.0
Nickel (Ni)	10.0 – 14.0
Molybdenum (Mo)	2.0 – 3.0
Manganese (Mn)	2.00 Max
Silicon (Si)	1.00 Max

Applications

• Chemical & Petrochemical Processing
• Marine & Coastal Installations
• Food & Beverage Processing Equipment
• Pharmaceutical & Biotechnology Industries
• Heat Exchangers & Condensers
• Architectural & Decorative Structures

Testing & Inspection

• Hydrostatic Testing
• Ultrasonic Testing (UT)
• Eddy Current Testing
• Positive Material Identification (PMI)
• Dimensional & Visual Inspection

Conclusion

ASTM A312 TP 316 Stainless Steel Mechanical Polish Pipes offer superior corrosion resistance, strength, and a refined polished finish. With enhanced resistance to harsh environments and excellent hygienic properties, these pipes are widely preferred in marine, chemical, sanitary, and architectural applications.