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ASTM A268 Ferritic Stainless Steel Tubing Cold Drawn Process

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Product Details

Brand Name

HENGLONG

Place of Origin

China

Product Description

Delivery Time:20-30 days
Certification:ISO9001, OHSAS8001, ISO14001, PED97/23/EC

ASME SA268 Seamless ferritic and martensitic stainless steel tubes

Standard: ASTM A268 / ASME SA268

Steel grade: ferritic stainless steels and martensitic stainless steels

A 450/A 450M Specification for General Requirements for seamless ferritic alloy tubing

A 480/A 480M Specification for General Requirements for flat-rolled stainless steel plate, sheet, and strip (for welded tubing)

E 213 practice for ultrasonic examination of longitudinal welded tubing

E 273 practice for ultrasonic examination of longitudinal welded tubing

	S43000	S44400	TP446-1	TP446-2	S44660	S44735	S41000
C, max, %	0.12	0.025	0.20	0.20	0.03	0.03	0.15
Mn, max, %	1.00	1.00	1.50	1.50	1.00	1.00	1.00
P, max, %	0.04	0.04	0.04	0.04	0.04	0.04	0.04
S, max, %	0.03	0.03	0.03	0.03	0.03	0.03	0.03
Si, max, %	1.00	1.00	1.00	1.00	1.00	1.00	1.00
Ni, %	-	1.00 max	0.75 max	0.50 max	1.0-3.5	1.00 max	-
Cr, %	11.5-16.0	17.5-19.5	23.0-27.0	23.0-27.0	25.0-28.0	28.0-30.0	11.5-13.5
Mo, %	-	1.75-2.50	-	-	3.0-4.0	3.6-4.2	-
Cu, %	-	-	0.025	0.025	-	-	-
N, %	-	0.035	-	-	0.04	0.045	-
Ti, %	-	0.8 max	-	-	Ti + Cb 0.2-1.0	Ti + Cb 0.2-1.0	-

Process: cold drawn for seamless tubing; Welded process with no filler metal added for welded tubing

The tubes cover nominal wall thickness.

Application: Tubing for general corrosion-resisting and high temperature service.

Dimensional range:

OD: 19.05-76.2mm

Length: Up to 24m

Any specific size is to be discussed before offer

The tube be 100% eddy current tested

Ultrasonic test is as option

Straightness ≤1mm/1000mm

Roughness: Ra ≤0.8

Mechanical properties

	S43000	S44400	TP446-1	TP446-2	S44660	S44735	S41000
Tensile strength min, Mpa	485	415	485	450	585	515	410
Yield strength min, MPa	275	275	275	275	450	415	215
Elongation in 50mm min, %	20	20	20	20	20	18	20

Hardness

	S43000	S44400	TP446-1	TP446-2	S44660	S44735	S41000
Brinell, max	207	217	207	207	265		207
Rockwell, B scale, max	95	95	95	95	58	100	95

Test

One tension test shall be made on a specimen for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes. Flaring test (for seamless tubes) shall be made on specimens from one end of one tube from each lot of finished tubes. The minimum expansion of the inside diameter shall be 10%. One test shall be made on specimens from one end of one tube from each lot of finished tubes. The flattening test may be performed instead of the flange test unless the fl

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ASTM A268 Ferritic Stainless Steel Tubing Cold Drawn Process

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