ASTM A182 F316L Stainless Steel Flange Low Carbon Corrosion Resistant for Chemical Marine
Price:
NEGOTIABLE
MOQ:
1
Delivery Time:
20-80
Brand:
YUHONG
Product Description
ASTM A182 F316L Stainless Steel Flange Low Carbon Corrosion Resistant for Chemical Marine
ASTM A182 F316L flanges are austenitic stainless steel forged flanges manufactured according to ASTM A182/A182M standards, belonging to the American standard material standard for high-pressure forged flanges. This standard covers various grades including alloy materials, stainless steel, and duplex stainless steel, with F316L being one of the most widely used austenitic stainless steel grades.
As a low-carbon version of F316, F316L reduces the carbon content from 0.08% to below 0.030%. This design makes it less prone to sensitization after welding.
It is designed for environments in industries such as chemical engineering, marine engineering, and food processing that involve chloride ion corrosive media, require extensive welding, and demand resistance to intergranular corrosion.
| Chemical Composition | ||
| Element | Content Range (%) | Metallurgical Function |
| C (Carbon) | ≤ 0.030 | Critical feature – extra-low carbon design prevents welding sensitization |
| Mn (Manganese) | ≤ 2.00 | Deoxidation; improves hardenability |
| P (Phosphorus) | ≤ 0.045 | Cold brittleness control |
| S (Sulfur) | ≤ 0.030 | Hot brittleness control |
| Si (Silicon) | ≤ 1.00 | Oxidation resistance improvement |
| Cr (Chromium) | 16.0 – 18.0 | Improves oxidation resistance and corrosion resistance |
| Ni (Nickel) | 10.0 – 14.0 | Stabilizes austenitic structure |
| Mo (Molybdenum) | 2.0 – 3.0 | Improves pitting resistance and crevice corrosion resistance |
| N (Nitrogen) | ≤ 0.10 | Solid solution strengthening |
| Core Difference Between F316 and F316L: | ||
| Comparison Item | F316 | F316L |
| Carbon Content (C) | ≤ 0.08% | ≤ 0.030% |
| Welding Sensitization Risk | Present (Cr₂₃C₆ precipitates in HAZ) | None (extra-low carbon design) |
| Post-Weld Heat Treatment (PWHT) | Sometimes required | Rarely required |
| Yield Strength (min) | 205 MPa | 170 MPa |
| Tensile Strength (min) | 515 MPa | 485 MPa |
| Most Common Applications | Non-welded components or components requiring PWHT after welding | Default choice for welded piping systems |
| Mechanical Properties | ||
| Parameter | F316L Standard Requirement (Min.) | F316L Typical Value |
| Tensile Strength (Rm) | ≥ 485 MPa (70 ksi) | 485 – 777 MPa |
| Yield Strength (Rp0.2) | ≥ 170 MPa (25 ksi) | 170 – 889 MPa |
| Elongation (50 mm gage length) | ≥ 30% | 30 – 42% |
| Hardness (HBW) | ≤ 217 HBW | ≤ 217 HBW |
| Reduction of Area | — | ≥ 22% |
| Physical Properties (Reference Values) | ||
| Parameter | Value | Unit |
| Density | ~7.9 – 8.0 | g/cm³ |
| Applicable Temperature Range | -196°C to 538°C | — |
| Magnetic Properties | Non-magnetic (austenitic structure) | — |
| ASME B16.5 Material Group | Group 1.10 | — |
Application
- Chemical and Petrochemical Industries: Pipeline flange connections resistant to acid and chloride media
- Marine and Offshore Engineering: Seawater contact piping systems
- Food Safety: Sanitary piping systems
- Cryogenic Applications: LNG pipelines (low-temperature toughness maintained up to -196°C)
- High-Temperature Applications: Continuous operation up to 538°C
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai