ASTM A182 gr F55 socket welding flanges are American standard dual phase steel flanges, and the executive standard is ASTM A182 / a182m-2018
ASTM A182 GR F5 socket welding flanges is a super duplex stainless steel, which is mainly used in various strong corrosive environments. ASTM A182 GR F5 socket welding flanges have strong strength and corrosion resistance. It has strong chloride corrosion resistance, high thermal conductivity and low thermal expansion coefficient. The high content of chromium, molybdenum and nitrogen makes ASTM A182 GR F5 socket welding flanges have high resistance to spot corrosion, crack corrosion and other corrosion.
ASTM A182 GR F5 socket welding flanges super duplex stainless steel physical properties:
1. Density of F55 dual phase steel: 8.0g/cm3,
2. F55 dual phase steel melting point: 1400-1450 ℃,
3. Specific heat of F55 dual phase steel (J / kg K): 460,
4. Resistivity of F55 dual phase steel（ μ Ω･cm)：90.0，
5. F55 dual phase steel thermal conductivity (w / m k): 12.8,
ASTM A182 GR F5 socket welding flanges super duplex stainless steel mechanical properties:
1. Mechanical properties of F55 dual phase steel: tensile strength: σ b≥750Mpa，
2. Yield strength of F55 dual phase steel σ b≥550Mpa：
3. Elongation of F55 dual phase steel: δ ≥45%，
4. F55 dual phase steel hardness: 270 (HB)
ASTM A182 GR F5 socket welding flanges super duplex stainless steel material characteristics:
1. Reliable corrosion resistance of F55 dual phase steel (pitting resistance coefficient (prEN ≥ 40) *,
2. F55 dual phase steel has excellent resistance to chloride ion pitting and crevice corrosion,
3. F55 dual phase steel has excellent sulfur acid resistance,
4. F55 dual phase steel has excellent stress corrosion cracking resistance in the environment of chloride ion containing and acidic (such as hydrogen sulfide) media,
5. F55 dual phase steel is resistant to erosion corrosion and corrosion fatigue,
6. F55 dual phase steel has excellent mechanical properties and weldability.
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