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904L Stainless Steel Seamless Pipe
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904L Stainless Steel Seamless Pipe

With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.


SizeOD21.3mm-610mm
Thickness2mm-45mm
Length5-20M
StandardASTM (ASME) (SA)A312 /213/376 ect
Materail and Grade904L
Process MethodCold drawn/cold rolled
StandardANSI B36.19/36.10
UsageOil Pipe, Casing Tube, Line Pipe and Fluid (Water, Gas) Transmission
SurfaceBared Black Painting, Anti-Corrosion Coating
Shaperound, square, rectangular tube etc.
PackageBundles, Bulk
InspectionWith Hydraulic Testing, Ultrasonic testing or X-ray Test
CertificateISO 9001-2000,PED 97/23/EC,ASME,DNV
Date of DeliveryLess Than 15/20/25 Days According To The Quantity
Payment:L/C or T/T
Port of ShipmentShanghai, China


Chemical Compositions

Element% Present (in product form)
Carbon (C)0.02
Silicon (Si)0.70
Manganese (Mn)2.00
Phosphorous (P)0.03
Sulfur (S)0.01
Chromium (Cr)19.00 - 21.00
Nickel (Ni)24.00 - 26.00
Nitrogen (N)0.15
Molybdenum (Mo)4.00 - 5.00
Copper (Cu)1.20 - 2.00
Iron (Fe)Balance

Mechanical properties 

Product Form

CHPLLTW/TS
Thickness (mm) Max.8.013.5751602502)60
Yield StrengthRp0.2 N/mm22403)2203)2203)2304)2305)2306)
Rp1.0 N/mm22703)2603)2603)2603)2603)2503)
Tensile StrengthRm N/mm2530 - 7303)530 - 7303)520 - 7203)530 - 7304)530 - 7305)520 - 7206)
Elongation min. in %Jmin (Longitudinal)-100100100-120
Jmin (Transverse)-6060-6090

Reference data on some physical properties

Density at 20°C kg/m38.0
Thermal Conductivity W/m K at20°C12
Modulus of Elasticity kN/mm2 at20°C195
200°C182
400°C166
500°C158
Specific Thermal Capacity at 20°C J/kg K450
Electrical Resistivity at 20°C Ω mm2/m1.0

Reference data on some physical properties

Density at 20°C kg/m38.0
Thermal Conductivity W/m K at20°C12
Modulus of Elasticity kN/mm2 at20°C195
200°C182
400°C166
500°C158
Specific Thermal Capacity at 20°C J/kg K450
Electrical Resistivity at 20°C Ω mm2/m1.0


Application

Chemical plant, oil refinery, petrochemical plants, bleaching tanks for the paper industry, combustion gas desulfurisation plants, application in sea water, sulphuric and phosphoric acid. Due to the low C-content, the resistance to intergranular corrosion is also guaranteed in the welded condition.


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