316H stainless steel pipes represent a specialized grade within the stainless steel family, engineered to withstand high-temperature environments while retaining exceptional corrosion resistance and mechanical integrity. This grade is a high-carbon variant of the 316 stainless steel alloy, designed to offer enhanced creep resistance and strength at elevated temperatures. The "H" in 316H denotes its high carbon content, which not only boosts its high-temperature performance but also contributes to its resistance against sensitization – a phenomenon where chromium carbides can form at grain boundaries, potentially causing corrosion issues. As a result, 316H stainless steel pipes are particularly suited for applications involving continuous exposure to high temperatures, such as in heat exchangers, steam boilers, and furnace components.
One of the key characteristics of 316H stainless steel pipes is their remarkable resistance to oxidation and scaling at elevated temperatures. This property is essential for maintaining the structural integrity and performance of pipes subjected to thermal stresses in various industrial settings. The combination of chromium, nickel, and molybdenum, along with the increased carbon content, contributes to their impressive performance under these demanding conditions. Furthermore, these pipes offer good weldability and formability, allowing for ease of fabrication and installation even in complex systems.
The diverse applications of 316H stainless steel pipes span industries where extreme heat and corrosive conditions are prevalent. Petrochemical, power generation, and chemical processing industries rely on 316H pipes for their reliability and robustness under high-temperature and aggressive environments. Additionally, their resistance to chloride-induced corrosion makes them suitable for applications in marine environments. Overall, 316H stainless steel pipes exemplify the fusion of advanced material engineering with practical industrial demands, ensuring the safe and efficient transportation of fluids and gases even in the most challenging circumstances.
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Specification:
Grade: Stainless Steel 316H
Sizes (Seamless): 1/2" - 24" (15mm - 600mm)
Sizes (ERW): 1/2" - 24" (15mm - 600mm)
Sizes (SAW/EFW): 16" - 100" (400mm - 2500mm)
Wall Thickness: Sch 5S, Sch 10S, Sch 20S, Sch 40S, Sch 80S
Length: 5.8 meters, 6 meters, 11.8 meters, or custom lengths as per project requirements
Chemical Composition of 316H Stainless Steel
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Iron (Fe) |
| Chemical Composition (% by weight) | 0.04 - 0.10 | ≤ 0.75 | ≤ 2.00 | ≤ 0.045 | ≤ 0.030 | 16.00 - 18.00 | 10.00 - 14.00 | 2.00 - 3.00 | Balance |
Mechanical Properties of 316H Stainless Steel
| Property | Tensile Strength | Yield Strength (0.2% offset) | Elongation at Break | Modulus of Elasticity | Poisson's Ratio | Hardness (Rockwell B) | Hardness (Rockwell C) |
| Value | 515 MPa (74,700 psi) | 205 MPa (29,800 psi) | 40% | 193 GPa (28,000 ksi) | 0.3 | 79 (Brinell scale) | 217 |
Advantages of 316H Stainless Steel Pipes:
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
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Applications Industry
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Heat Exchangers | Gas Processing |
| Condensers | Specialty Chemicals |
| Pulp and Paper Industry | Pharmaceuticals |
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Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.