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Yuhong Holding Group Co.,LTD
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ASTM A358 CL1 TP316L Welded Stainless Steel Pipe for Offshore Industry
Description
ASTM A358 TP316L is a standard specification for electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both.316L is a low carbon version of Type 316 stainless steel, which is commonly used for its excellent corrosion resistance, especially in corrosive environments.
ASTM A358 specifies that the pipes covered by this standard should be produced by the electric-fusion-welding process. This welding method involves melting two or more pieces of metal using an electric arc. The molten metal is then fused together to form a continuous joint.
Pipe Dimensions and Sizes: ASTM A358 TP316L covers a range of pipe sizes and thicknesses. The standard includes provisions for various nominal pipe sizes, wall thicknesses, and schedules to meet different design requirements.
Chemical Composition: The chemical composition requirements for TP316L stainless steel are specified in the standard to ensure the material's corrosion resistance and other mechanical properties.
Mechanical Properties: ASTM A358 provides requirements for mechanical properties such as tensile strength, yield strength, and elongation. These properties are essential for assessing the material's performance in different applications.
Heat Treatment: The standard may specify heat treatment requirements for the TP316L pipes to achieve the desired mechanical and corrosion-resistant properties.
Testing and Inspection: ASTM A358 includes provisions for various tests and inspections to ensure the quality of the welded pipes. Common tests include hydrostatic testing, nondestructive testing (such as ultrasonic or radiographic examination), and visual inspection.
It's important to note that when working with specific materials and applications, users should always refer to the latest edition of the ASTM A358 standard for the most accurate and up-to-date information. Additionally, consulting with manufacturers and suppliers who adhere to these standards is crucial to ensuring that the pipes meet the required specifications for a given project.
ASTM A358 Grade 316L Stainless Steel EFW Pipes Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni |
| SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 11.00 - 14.00 |
| 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 |
ASTM A358 Grade 316L Stainless Steel EFW Pipes Mechanical Properties
| Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316 | 515 | 205 | 40 | 95 | 217 |
| 316L | 485 | 170 | 40 | 95 | 217 |
ASTM A358 Grade 316 /316L Stainless Steel EFW Pipes Physical Properties
| 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 | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
Specification Grade Comparison for ASTM A358 Grade 316 /316L Stainless Steel EFW Pipes
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 316 | S31600 | 316S31 | 58H, 58J | 1.4401 | X5CrNiMo17-12-2 | 2347 | SUS 316 |
| 316L | S31603 | 316S11 | - | 1.4404 | X2CrNiMo17-12-2 | 2348 | SUS 316L |
ASTM A358 Grade 316 Stainless Steel EFW Pipes Apllication
Cryogenic Industry
LNG Gas
Offshore Industry
Process Plants
Sub Sea
Refineries etc.
