S32750 2507 F53 1.4410 Super duplex stainless steel tube pipe
Material brand: S32750 super duplex stainless steel
German brand name: 1.4410
Chinese brand no. : 00Cr25Ni7Mo4N,
Forging brand: F53
S32750 (2507, F53, 1.4410) super duplex stainless steel overview:
S32750 (2507, F53, 1.4410) super duplex stainless steel consists of
25% chromium, 4% molybdenum and 7% nickel.
S32750 dual-phase steel has strong strength and corrosion
resistance, which is mainly used in chemical processing,
petrochemical industry and submarine equipment.
S32750 dual phase steel has strong resistance to chloride
corrosion, high thermal conductivity and low thermal expansion
High content of chromium, molybdenum and nitrogen it has high
resistance to spot corrosion, crack corrosion and general
S32750 dual-phase steel also has a high impact strength and is not
suitable for use at temperatures above 570 ° c, where its toughness
decreases over time.
S32750 dual phase steel has integrated many ferritic steel and
austenitic steel is the most beneficial properties, because the
steel chromium and molybdenum content is very high, so has
excellent resistance to corrosion, crevice corrosion and the
ability of uniform corrosion, duplex microstructure ensures that
the steel has the ability of high resistance to stress corrosion
cracking, and the mechanical strength is high.
S32750 2507 F53 1.4410 Chemical composition of stainless steel
S32750 (2507, F53, 1.4410) super duplex stainless steel physical
and mechanical properties:
1. S32750 (2507, F53, 1.4410) dual-phase steel density: 8.0g/cm3.
2. Tensile strength of S32750 (2507, F53, 1.4410) duplex steel
strength of extension: σb≥800Mpa.
S32750 (2507, F53, 1.4410) two-phase steel yield strength:
4, S32750 (2507, F53, 1.4410) duplex steel elongation: δ≥15%.
5. S32750 (2507, F53, 1.4410) dual-phase steel hardness (HB) : 310
S32750 (2507, F53, 1.4410) super duplex stainless steel corrosion
1. Compared with 904L, S32750 dual-phase steel has stronger
corrosion resistance to dilute sulfuric acid mixed with chloride
904L is an austenitic alloy specially designed to resist the
corrosion of pure sulfuric acid.
The higher chromium and molybdenum content of S32750 dual-phase
steel makes it more resistant to overall corrosion of organic acids
such as acid and acetic acid.
S32750 duplex steel also has strong corrosion resistance to
inorganic acids, especially those containing chlorides.
Grade 316L cannot be used in hydrochloric acid environments where
it may be subject to local or global corrosion.
S32750 dual phase steel can be used in dilute hydrochloric acid
environment, with strong resistance to spot damage and crack
2. Intercrystalline corrosion S32750 dual-phase steel has a lower
carbon content, which greatly reduces the risk of intercrystalline
carbide precipitation during heat treatment. Therefore, this alloy
is highly resistant to carbon-related intercrystalline corrosion.
3. Stress corrosion cracking: due to its high alloy content, the
corrosion resistance and strength of S32750 dual-phase steel are
better than that of 2205.
S32750 dual - phase steel composite structure makes it more
resistant to stress corrosion cracking ability.
4, corrosion and corrosion: there are many ways to test the
corrosion resistance of steel products in solution containing
chloride. The critical temperature for corrosion and corrosion of
high-performance stainless steel at 1M sodium chloride solution is
Various experimental results show that S32750 dual - phase steel
has excellent corrosion resistance.
5, crack corrosion: cracks in the building and other aspects are
almost inevitable, which makes stainless steel more vulnerable to
corrosion in the chloride environment.2507 dual - phase steel has a
strong anti - crack corrosion ability.
S32750 (2507, F53, 1.4410) super duplex stainless steel
1. Oil and gas industry equipment
2. Offshore platform, heat exchanger, underwater equipment, fire
3. Chemical processing industry, vessel and pipe industry,
4. Desalination plants, high-pressure RO plants and submarine
5. Mechanical parts (high-strength, anti-corrosion parts)
6, energy industry FGD system, industrial washing system,
S32750 (2507, F53, 1.4410) super duplex stainless steel variety
specification and supply status:
1, variety classification: S32750 seamless pipe, S32750 steel
plate, S32750 round steel, S32750 forging, S32750 flange, S32750
ring, S32750 welded pipe, S32750 steel belt, S32750 wire material
and S32750 supporting welding material.
2, delivery status: seamless tube: solid solution + acid white,
length can be fixed length;
Plate: solid solution, pickling, cutting edge;
Welded pipe: solution acid white +RT% flaw detection, forging:
annealing + polishing;
Bar by forging rolling state, surface polishing or polishing;
After cold rolling, solid solution soft state, oxide skin delivery;
The silk material shall be delivered in the state of fine polishing
in the form of solid solution pickling tray or straight strip.