ASTM A269 TP316L Stainless Steel Tube Polish Finishing 320 Grit

ASTM A269 pipe can be produced seamlessly or welded. Common surface finishes include annealing, pickling, or bright annealing. SS304 and SS316 are the two most commonly used stainless steel grades for stainless steel piping systems.
SS316 stainless steel pipe offers many advantages, including excellent corrosion resistance, easy cleaning, low maintenance, and affordability. While the initial cost of stainless steel may be higher than other metals, stainless steel pipe offers cost advantages in terms of maintenance and replacement costs.

ASTM A269 TP316L Stainless Steel Tube Polish Finishing 320 Grit

ASTM A269 / ASME SA269 TP316L bright annealed stainless steel tube polishing achieves a surface roughness of Ra≤0.2μm (mirror finish standard), with outer diameter tolerance controlled within ±0.05mm and wall thickness tolerance of ±5% of nominal thickness, meeting stringent cleanliness requirements with surface free iron content ≤50μg/dm² and chloride ion residue ≤25ppm, ensuring optimal corrosion resistance in pharmaceutical, food processing, and high-purity fluid transport applications where ultra-smooth surfaces are critical.​​

 

Stainless Steel Polished Grits

120 grit

180 grit

320 grit

400 grit

600 grit

800 grit

 

Other Finishing processes:

BA: Bright Annealing

MP: Mechanical polishing

BA: Bright Annealing

EP: Electro Polishing

Equivalent Grades of Stainless Steel 316L Tubes

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 316L	1.4404 / 1.4435	S31603	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3

Chemical Composition of Stainless Steel 316L Tubes

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Fe
SS 316L	0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	16.00 - 18.00	2.00 - 3.00	10.00 - 14.00	68.89 min

Mechanical Properties of Stainless Steel 316L Tubes

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1399 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Physical Properties of Stainless Steel 316L Tubes

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	At 100°C	At 500°C
316/L/H	8000	193	15.9	16.2	17.5	16.3	21.5	500	740

Applications
Food preparation equipment particularly in:
1. chloride environments
2. Fasteners
3. Pharmaceuticals
4. Marine applications
5. Architectural applications
6. Medical implants which comprise pins, screws and orthopedic implants like total hip and knee replacements.

 

If you have a project need for 316 stainless steel bright annealed tubing, we welcome your order. GNEE has a large inventory of popular products for you to choose from. We offer a variety of practical product forms, including seamless and welded. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service. Email: info@gneestainless.com