Stainless Steel 316 / 316L Tube Fittings


Arrow Piping Solutions is a trusted manufacturer, supplier, and exporter of SS 316 / 316L Compression Tube Fittings. These fittings are made from high-quality stainless steel and conform to both national and international standards. SS 316 and SS 316L offer excellent corrosion resistance, especially in chloride environments, making them ideal for demanding applications.


Our SS 316 / 316L Compression Tube Fittings ensure leak-tight and gas-tight connections in pneumatic and hydraulic systems. These fittings are widely used in industries such as oil & gas, chemicals, food processing, pharmaceuticals, and marine, owing to their superior performance and durability.

SS 316 Tube Fittings

SS 316 / 316L Compression Tube Fittings Specifications

Size Range1/16 in. to 2 in. & 2mm to 50 mm
End Connection Thread TypeNPT (ASME B1.20.1), SAE AS71051, ISO/BSP Parallel (ISO 228), ISO/BSP Tapered (ISO 7), BS EN 10226-1, SAE (Unified) ASME B1.1
Dimensional Range1/16 to 2 inches (imperial); 2 to 50 mm (metric)
Working PressureUp to 2000 to 6000 PSI
TypesTube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories

SS 316 / 316L Compression Tube Fittings Dimensions

ODOD ActualThread DesignationNPT (TPI)BSP (TPI)
5/160.31251/162728
13/320.4051/82728
35/640.5401/41819
43/640.6753/81819
27/320.8401/21414
1-3/641.0503/41414
1-5/161.315111.511
1-21/321.6601-1/411.511
1-29/321.9001-1/211.511
2-3/82.3752811
2-7/82.8752-1/2811
3-1/23.53811
44.03-1/2811
4-1/24.54811
5-5/85.5635811
6-5/86.6256811

SS 316 / 316L Compression Tube Fittings Chemical Composition

GradeCMnSiPSCrMoNiFe
SS 3160.08 max2.0 max1.0 max0.045 max0.030 max16.00 - 18.002.00 - 3.0011.00 - 14.0067.845 min
SS 316L0.035 max2.0 max1.0 max0.045 max0.030 max16.00 - 18.002.00 - 3.0011.00 - 14.0068.89 min

SS 316 / 316L Compression Tube Fittings Mechanical Properties

ElementDensityMelting PointTensile StrengthYield Strength (0.2% Offset)Elongation
SS 3168.0 g/cm³1400 °C (2550 °F)75000 psi / 515 MPa30000 psi / 205 MPa35%
SS 316L8.0 g/cm³1399 °C (2550 °F)75000 psi / 515 MPa30000 psi / 205 MPa35%

SS 316 / 316L Compression Tube Fittings Equivalent Grades

STANDARDWERKSTOFF NR.UNSJISBSAFNOREN
SS 3161.4401 / 1.4436S31600SUS 316316S31 / 316S33Z7CND17‐11‐02X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L1.4404 / 1.4435S31603SUS 316L316S11 / 316S13Z3CND17‐11‐02 / Z3CND18‐14‐03X2CrNiMo17-12-2 / X2CrNiMo18-14-3

Application Industries

Arrow Piping Solutions’ SS 316 / 316L Compression Tube Fittings are widely used in the following industries:

  • Textile Machinery
  • Oil and Gas Industry
  • Pulp and Paper Industry
  • Power Plants
  • Energy Industries
  • Furniture
  • Pharmaceutical Processing Industry
  • Modern Architecture
  • Home Appliances
  • Water Waste Projects
  • Synthetic Fiber
  • Heat Exchangers
  • Fluid Piping
  • Dairy and Food Processing