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ASTM A312 S31254 SMO 254 Seamless Pipe For High Temperature Seawater

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ASTM A312 S31254 SMO 254 Seamless Pipe For High Temperature Seawater

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Brand Name :	YUHONG
Model Number :	ASTM A312 S31254
Certification :	ABS, BV, ISO, ASTM, SGS
Price :	Negotiable
Payment Terms :	T/T,L/C
Supply Ability :	1000 tons per month
Delivery Time :	Depends on quantity

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ASTM A312 S31254 SMO 254 Seamless Pipe For High Temperature Seawater

ASTM A312 S31254 SMO 254 Seamless Pipe High Temperature Seawater

What is S31254 material?

NAS 185N (SUS 312L, UNS S31254,SMO 254) is a high corrosion resistant austenitic stainless steel with a high nickel, high chromium, high molybdenum alloy design, and provides excellent corrosion resistance in severe corrosion environments such as high temperature seawater.

254SMO is an austenitic stainless steel. Due to its high molybdenum content, it has extremely high resistance to pitting and crevice corrosion.

SMO 254(UNS S31254) is a high-alloy austenitic stainless steel developed for use in seawater and other aggressive chloride-bearing media. The steel is characterized by the following properties:

-Excellent resistance to pitting and crevice corrosion, PREN ≥42.5*
-High resistance to general corrosion
-High resistance to stress corrosion cracking
-Higher strength than conventional austenitic stainless steels
-Good weldability

Chemical Composition of S31254 / SMO 254

C	Si	Mn	P	S	Cr	Ni	Mo	N	Cu
≤0.020	≤0.80	≤1.00	≤0.030	≤0.010	20	18	6.1	0.20	0.7

Mechanical Properties of S31254 / SMO 254

Properties	Metric	Imperial
Tensile strength	680 MPa	98600 psi
Yield strength	300 MPa	43500 psi
Modulus of elasticity	195 GPa	28300 ksi
Shear modulus	75 GPa	10900 ksi
Poisson’s ratio	0.30	0.30
Elongation at break	50 %	50 %
Hardness, Brinell	210	210

UNS S31254 Physical Properties

Density (Kg.m-1)	8000
Magnetic Permeability	<1.05
Young’s Modulus (N/mm2)	200 x 103
Specific Heat, 20°C (J.Kg-1.°K-1)	500
Specific Electrical Resistance, 20°C (µO.m)	0.85
Thermal conductivity, 20°C	13.5

Thermal Properties of S31254 / SMO 254

Properties	Metric	Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F)	16.5 µm/m°C	9.17 µin/in°F
Thermal conductivity	14 W/mK	97.2 BTU in/hr.ft².°F

Equivalent Material of S31254 / SMO 254:

STANDARD	UNS	WERKSTOFF NR.	AFNOR	EN	SIS
SMO 254	S31254	1.4547	Z1 CNDU 20.18.06Az	X1CrNiMoCuN20-18-7	2378

Applications:

-Saltwater handling
-Tall oil distillation columns
-Flue gas desulfurization scrubbers
-Components used in petroleum production
-Food processing equipment
-Process equipment in chemical industry
-Bleaching equipment in the pulp and paper industry
-Flue-gas cleaning

Size Range Of SMO 254 Pipe

1/8" IPS(.405"O. D.)	3 1/2" IPS( 4.000"O. D.)
SCH 40, 80	SCH 10, 40, 80, 160, XXH
1/4" IPS(.540"O. D.)	4" IPS(4.500"O. D.)
SCH 10, 40, 80	SCH 10, 40, 80, 160, XXH
3/8" IPS(.675"O. D.)	5" IPS( 5.563"O. D.)
SCH 10, 40, 80	SCH 10, 40, 80, 160, XXH
1/2" IPS(.840"O. D.)	6" IPS(6.625"O. D.)
SCH 5, 10, 40, 80, 160, XXH	SCH 5, 10, 40, 80, 120, 160, XXH
3/4" IPS(1.050"O. D.)	8 ” IPS(8.625"O. D.)
SCH 10, 40, 80, 160, XXH	SCH 5, 10, 40, 80, 120, 160, XXH
1" IPS:(1.315′O. D.)	10" IPS(10.750"O. D.)
SCH 5, 10, 40, 80, 160, XXH	SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4" IPS(1.660"O. D.)	12" IPS(12.750"O. D.)
SCH 10, 40, 80, 160, XXH	SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2" IPS(1.900"O. D.)	14" IPS(14.000"O. D.)
SCH 10, 40, 80, 160, XXH	SCH10 (.188), SCH40 (.375)
2" IPS(2.375"O. D.)	16" IPS(16.000"O. D.)
SCH 10, 40, 80, 160, XXH	SCH10(.188), SCH40(.375)
2 1/2" IPS(2.875"O. D.)	18" IPS (18.000"O. D.)
SCH 10, 40, 80, 160, XXH	SCH-40 (.375)

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