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Standard ASTM A268
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ASTM A268/ASME SA268 Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Standard: ASTM A268, ASME SA268
Material: 26-3-3, S44660
Chemistry Composition
C, %
Mn, %
P, %
S, %
Si, %
Cr, %
Ni, %
Mo, %
N, %
Ti+Nb, %
0.03 max
1.00 max
0.040 max
0.030 max
1.00 max
25.0-28.0
1.00-3.50
3.00-4.00
0.04 max
0.20-1.00, & 6(C+N) min
Mechanical Properties
Tensile Strength , MPa
Yield Strength, MPa
Elongation, %
Hardness, HB
585 min
450 min
20 min
265 max
Outside Diameter & Tolerance
Outside Diameter, mm
Tolerance, mm
OD<12.7
±0.13
12.7≤OD<38.1
±0.13
38.1≤OD<88.9
±0.25
88.9≤OD<139.7
±0.38
139.7≤OD≤203.2
±0.76
Wall thickness & Tolerance
Outside Diameter, mm
Tolerance, %
OD<12.7
±15
12.7≤OD<38.1
±10
38.1≤OD<88.9
±10
88.9≤OD<139.7
±10
139.7≤OD≤203.2
±10
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.
Max developed length: 32 meters, also U bending can be offered, each leg length can be 15.24 meters.
Keyword: Ferritic Stainless Steel, Seamless Steel Tube, Stainless Steel Tube, Steel Tube; Welded Steel Tube, ASME SA268, 26-3-3, S44660, ASTM A268
 
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