Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service, Ferritic Stainless Steel, Seamless Steel Tube, Stainless Steel Tube, Steel Tube; Welded Steel Tube, ASME SA268, SA268TP444, ASTM A268, FH

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: TP444, 18Cr-2Mo, S44400
Equivalent Material: 1.4521, 019Cr19Mo2NbTi

Chemistry Composition

C, %	Mn, %	P, %	S, %	Si, %	Cr, %	Ni, %	Mo, %	N, %	Ti+Nb, %
0.025 max	1.00 max	0.040 max	0.030 max	1.00 max	17.5-19.5	1.00 max	1.75-2.50	0.035 max	[0.20+4(C+N)]-0.80

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
415 min	275 min	20 min	217 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, SA268TP444, ASTM A268

Home | About Us | Product | Know How | Contact Us