Cold Rolled 316Ti Stainless Steel Seamless Pipe with Pickling Surface Treatment for High-Temperature Strength
316Ti/1.4571 ASTM A312 Seamless Heat Exchanger Stainless Steel Tubes
ASME SA213 / ASTM A213 316Ti UNS S31603, EN 10216-5 1.4571 Stainless Steel. Similar to Grade 316L but with superior high-temperature strength and mechanical properties. Ideal for equipment exposed to aggressive corrosive conditions and high-temperature applications, including automotive flexible connectors, welded bellows, chimney liners, and flexible ducting.
| Weight % | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| TP316Ti | 0.08 max | 0.75 max | 2.00 max | 0.045 max | 0.030 max | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | 5×(C+N)-0.70 | Rem |
| EN 10216-5 1.4571 | 0.08 max | 1.00 max | 2.00 max | 0.040 max | 0.015 max | 16.50-18.50 | 10.50-13.50 | 2.00-2.50 | 5×C-0.70 | Rem |
| AISI 316 Ti | 0.08 max | 0.75 max | 2.00 max | 0.045 max | 0.030 max | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | 5× (C+N)-0.70 | Rem |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
|---|---|---|---|---|---|
| 316H | 515 | 205 | 35% | 75 | 205 |
UNS S31635 (316Ti) is a titanium-stabilized version of 316 molybdenum-bearing austenitic stainless steel. The 316 alloys offer superior resistance to general corrosion and pitting/crevice corrosion compared to conventional chromium-nickel austenitic stainless steels like 304. They also provide higher creep, stress-rupture, and tensile strength at elevated temperatures.
Titanium additions stabilize the structure against chromium carbide precipitation, which significantly reduces susceptibility to sensitization. This allows the alloy to be used for extended periods at elevated temperatures without compromising corrosion resistance. 316Ti has equivalent corrosion resistance to sensitization as the low carbon version 316L.
- ASTM A213
- BS EN 10216 part 5
- Custom specifications available
- Straight
- Coiled
- Seamless
- Seam welded, cold redrawn and annealed
- Chemical processes
- High temperature applications
- Automotive components
- Control lines
- Chemical processing
- Oil and Gas
- Automotive
| Temper | Property | Value | Units |
|---|---|---|---|
| Annealed | Tensile Rm | 75 | ksi (min) |
| Tensile Rm | 515 | MPa (min) | |
| R.p. 0.2% Yield | 30 | ksi (min) | |
| R.p. 0.2% Yield | 205 | MPa (min) | |
| Elongation (2" or 4D gl) | 35 | % (min) |
| Property | Value | Units |
|---|---|---|
| Specific Heat (0-100°C) | 500 | J.kg⁻¹.°K⁻¹ |
| Thermal Conductivity | 14.6 | W.m⁻¹.°K⁻¹ |
| Thermal Expansion | 16.5 | μm/μm/°C |
| Modulus Elasticity | 193 | GPa |
| Electrical Resistivity | 7.4 | μohm/cm |
| Density | 7.99 | g/cm³ |
| Element | Min | Max |
|---|---|---|
| C | - | 0.08 |
| Si | - | 0.75 |
| Mn | - | 2 |
| P | - | 0.45 |
| S | - | 0.03 |
| Cr | 16 | 18 |
| Mo | 2 | 3 |
| N | - | 0.1 |
| Fe | Balance | |
| Ni | 10 | 14 |
| Ti | 5x%(C+N) | |
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