Pipe-Lok Vales & Fittings Company delivers precision-engineered instrumentation fittings and valves trusted for reliability, safety, and performance in industrial applications with a strong focus on engineering excellence and quality control.
SS 316 and 316L incorporate molybdenum for improved resistance to pitting and crevice corrosion in chloride-containing environments, making them a preferred choice for VCR fittings in chemical, pharmaceutical and marine-adjacent process systems.
Molybdenum-bearing austenitic stainless steel offering improved corrosion resistance over Type 304, particularly in chloride environments.
| Element | Weight Percentage (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Chromium (Cr) | 16.0 - 18.0 |
| Nickel (Ni) | 10.0 - 14.0 |
| Molybdenum (Mo) | 2.00 - 3.00 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Iron (Fe) | Balance |
*Composition limits are as per the applicable ASTM/ASME/UNS specification; actual limits may vary depending on product form.
Type 316 provides good strength and ductility with enhanced resistance to pitting and crevice corrosion.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 515 MPa min |
| 0.2% Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness | 217 HB max |
| Density | Approx. 8.0 g/cm³ |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the VCR fitting component.
Low-carbon version of 316, reducing the risk of intergranular corrosion after welding while retaining molybdenum-based corrosion resistance.
| Element | Weight Percentage (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Chromium (Cr) | 16.0 - 18.0 |
| Nickel (Ni) | 10.0 - 14.0 |
| Molybdenum (Mo) | 2.00 - 3.00 |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Iron (Fe) | Balance |
*Composition limits are as per the applicable ASTM/ASME/UNS specification; actual limits may vary depending on product form.
316L is widely specified for welded fitting components requiring both corrosion resistance and weldability.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 485 MPa min |
| 0.2% Yield Strength | 170 MPa min |
| Elongation | 40% min |
| Hardness | 217 HB max |
| Density | Approx. 8.0 g/cm³ |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the VCR fitting component.
High-performance material specifications for our complete VCR Fittings range.
Engineered for demanding fluid and gas-handling systems where leak-tight sealing, corrosion resistance and long service life are essential.
Used in process piping and instrumentation systems handling corrosive fluids across chemical plants.
Hygienic-grade connections for food, dairy and beverage processing lines requiring cleanability.
Suited for high-purity process lines where contamination control and corrosion resistance are critical.
Reliable performance in upstream and downstream piping systems exposed to varying process media.
Corrosion-resistant fittings for shipboard piping and offshore support systems.
Withstands bleaching and pulping process chemicals in paper manufacturing plants.