Overview
Grade 316L , the low carbon version of 316, is immune from sensitisation (grain boundary carbide precipitation). Thus it is extensively used in heavy gauge welded components (over about 6mm). The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures.
ASTM A213 TP316L steel tube, which a preferred steel for using in marine environments because of its greater resistance to pitting corrosion than other grades of steel. In fact, it's negligibly responsive to magnetic fields means that it can be used in applications where a non-magnetic metal is required. In addition to molybdenum, 316L also contains a number of other elements in varying concentrations. Like other grades of stainless steel, marine grade stainless steel is a relatively poor conductor of both heat and of electricity when compared to metals and other conductive materials.
While 316L is not completely rust-proof, the alloy is more corrosion-resistant than other common stainless steels. Like surgical steel, which almost totally made from subtypes of 316 stainless steel.
Specification
ASTM A213/A213M-21a Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
| 316L Stainless Steel Pipe & Tubes Specification | ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
| 316L Stainless Steel Pipe & Tubes Grades | 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
| 316L Stainless Steel Pipe & Tubes Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| 316L Stainless Steel Pipe & Tubes Outer Diameter Size | Seamless - 1/2"NB TO 18"NB Welded / ERW- 1"NB TO 16"NB EFW - 8"NB TO 110"NB |
| 316L Stainless Steel Pipe & Tubes Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| 316L Stainless Steel Pipe & Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| 316L Stainless Steel Pipe & Tubes Ends | Plain Ends / Beveled Ends |
| 316L Stainless Steel Pipe & Tubes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
| 316L Stainless Steel Pipe & Tubes Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| 316L Stainless Steel Pipe & Tubes Other Testing | Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
| 316L Stainless Steel Pipe & Tubes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| 316L Stainless Steel Pipe & Tubes Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
316 | Min | - | - | - | 0 | - | 16.0 | 2.00 | 10.0 | - |
Max | 0.08 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
316L | Min | - | - | - | - | - | 16.0 | 2.00 | 10.0 | - |
Max | 0.03 | 2.0 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.10 | |
316H | Min | 0.04 | 0.04 | 0 | - | - | 16.0 | 2.00 | 10.0 | - |
max | 0.10 | 0.10 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | - | |
Mechanical Properties
Grade | Tensile Str | Yield Str | Elong | Hardness | |
Rockwell B | Brinell | ||||
316 | 515 | 205 | 40 | 95 | 217 |
316L | 485 | 170 | 40 | 95 | 217 |
316H | 515 | 205 | 40 | 95 | 217 |
Physical Properties
Grade | Density | Elastic Modulus | Mean Co-eff of | Thermal Conductivity | Specific Heat | Elec Resistivity | |||
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
1. Chemical and petrochemical industry.
2. Food processing.
3. Pharmaceutical equipment.
4. Medical devices.
5. Potable water.
6. Wastewater treatment.
7. Marine applications and architectural applications near the seashore or in urban areas
