SMO 254 Pipe




254 SMO Pipe Supplier, 254 SMO Seamless Pipe Stockist

254 SMO Pipe Suppliers

254 SMO Pipe made by a high-alloy austenitic stainless steel developed for use in seawater and other aggressive chloride-bearing media. SMO 254 Round Pipes (UNS S31254) is an austenitic stainless steel designed for maximum resistance to pitting and crevice corrosion. SMO 254 Welded Pipe is developed for use in halide-containing environment such as seawater. 254 SMO Seamless Pipe has excellent resistance to a wide range of atmospheric environments and many corrosive media. Alloys 254 / 254 SMO / 6 Mo Pipe which is also known as 18 / 8 stainless steel and is the most common stainless steel.

254 SMO Pipe Specifications

Specifications ASTM B 167 ASME SB 167 / ASTM B 829 ASME SB 829 / ASTM B 517 ASME SB 517
254 SMO Seamless Pipe size 4 to 219mm W. T.: 0.5 to 20mm
254 SMO Welded Pipe size
5.0 mm – 1219.2 mm
254 SMO EFW Pipe size 5.0 mm – 1219.2 mm
Specialized in Large Diameter Size
Schedule SCH5, SCH10, SCH40, STD, SCH80, SCH160
Alloy Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Form Round, Square, Hollow, Rectangular, Hydraulic, Straight Pipes Etc.
Length Single Random, Double Random & Cut Length.
End Plain End, Beveled End, Treaded.
Marking All Alloy 254 SMO Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Material Test Certificates (MTC) Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
We can also cut, thread, and groove 254 SMO Pipes to meet your specifications.

254 SMO Pipe Composition

SMO 254 Ni C Mo Mn Si Fe Cu S P Cr
17.5 – 18.5 0.02 max 6 – 6.5 1 max 0.8 max 0.5 – 1 0.01 max 0.03 max 19.5 – 20.5

SMO 254 Pipe Mechanical Properties

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
8.0 g/cm3 1320-1390 ℃ 300 650 35 %

Equivalent Grades for 254 SMO Pipe

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

254 SMO Pipe Pressure Rating

O.D.
(in.)
Wall Thickness of Pipe (inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure (psig)
1/8 7900 10100            
1/4 3700 4800 7000 9500        
5/16   3700 5400 7300        
3/8   3100 4400 6100        
1/2   2300 3200 4400        
3/4     2200 3000 4000 4600    
1       2200 2900 3400 3900 4300
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