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船舶級316 不同鋼 正角型空洞切断 溶接 ASTM A554
Marine grade rectangular hollow section (RHS) refers to 316 stainless steel rectangular tubing specifically designed for applications in coastal, offshore, and marine environments where standard 304 stainless steel would be susceptible to pitting and corrosion from chloride exposure. The addition of 2-3% molybdenum to the 316 grade provides significantly enhanced resistance to pitting, crevice corrosion, and stress corrosion cracking in seawater, salt spray, and chloride-rich
316 ステンレス鋼長方形チューブ ASTM A554 長方形中空セクション
316 stainless steel rectangular tubing is the premium choice for applications requiring superior corrosion resistance, especially in chloride-rich environments such as coastal areas, marine settings, and chemical processing facilities. The addition of molybdenum (2-3%) gives 316 significantly better resistance to pitting, crevice corrosion, and stress corrosion cracking compared to 304 stainless steel. This rectangular hollow section (RHS) is manufactured to ASTM A554
ASTM B407 UNS N08810 インコロイ 800H パイプ 高温サービス合金
UNS N08810 高温用合金 ASTM B407
高強度 インコネル 625 UNS N06625 耐腐蝕合金
UNS N06625 is a nickel-chromium-molybdenum alloy with outstanding corrosion resistance and high strength over a broad temperature range from cryogenic to 980°C (1800°F). The addition of niobium (columbium) and tantalum provides exceptional resistance to pitting, crevice corrosion, and chloride ion stress-corrosion cracking. Unlike many high-temperature alloys, UNS N06625 does not rely on precipitation hardening for strength. Instead, it derives its high tensile and creep
高温耐性インコローイ 800HTチューブ UNS N08811 ニッケル鉄クロム合金
UNS N08811 is a nickel-iron-chromium alloy specifically designed for high-temperature service with exceptional creep and rupture strength. It is a controlled chemistry version of UNS N08800 (Alloy 800), with tighter limits on carbon (0.06-0.10%), aluminum (0.15-0.60%), and titanium (0.15-0.60%) to optimize high-temperature performance. The alloy maintains an austenitic structure and offers excellent oxidation and carburization resistance, as well as good corrosion resistance
