ASTM B407 Incoloy 800 Seamless Pipe and Tube Suppliers

ASTM B407 - Seamless Pipe and Tube
ASTM B407 Specification is for Incoloy 800 Seamless Pipes and Tubes. The Specification is used for working in high temperature environments due to it's excellent resestince to heat.
Other Names : Incoloy 800 Seamless Pipe, Incoloy 800 Seamless Tube, ASTM B407 UNS N08800, Alloy 800 Seamless Pipe, Alloy 800 Seamless Tubing
Material : Incoloy
Brand : Mumbadevi Steel India (MSI)
Manufacturer : Mumbadevi Steel India (MSI)

Chemical Composition Limits:-

Elements	Incoloy 800, Incoloy 800H and Incoloy 800HT
Nickel	30.0 min 35.0 max
Chromium	19.0 min 23.0 max
Iron	39.5 min
Manganese	1.5
Carbon	-
Copper, max	0.75
Silicon	1.0
Sulfur, max	0.015
Aluminum	0.15 min 0.60 max
Titanium	0.15 min 0.60 max

Mechanical Properties And Other Requirements:-

As per ASTM B407 specifications, the material should undergo chemical analysis test, mechanical properties test, grain size test, and hydrostatic or Nondestructive Electric test and adhere to all the limit range as specified like yield strength, tensile strength, and elongation requirements. The pipes and tubes are subjected to hydrostatic tests to determine the allowable fiber stress and to detect significant discontinuities such as drilled hole and transverse tangential notch.

Grade	Condition	Yield Strength, (0.2% offset), min, psi (MPa)	Tensile Strength, min, psi (MPa)	Elongation in 2 inches or 50 mm (or 4D), min%
Incoloy 800 (UNS N08800)	Cold-worked annealed	30 000 (205)	75 000 (520)	30
Incoloy 800 (UNS N08800)	Hot-finished annealed or hot-finished	25 000 (170)	65 000 (450)	30
Incoloy 800H (UNS N08810)	Hot-finished annealed or cold-worked annealed	25 000 (170)	65 000 (450)	30
Incoloy 800HT (UNS N08810)	Hot-finished annealed or cold-worked annealed	25 000 (170)	65 000 (450)	30

Dimension and Permissible Variation:-

The cold-drawn pipes and tubes should adhere to ASTM B407 specification which includes being commercially straight, uniform in quality and temper, smooth, and free of bends, kinks, and other injurious imperfections.

Permissible Variation
Specified or Calculated Nominal Outside Diameter	Outside Diameter or Inside Diameter		Wall Thickness,%
	+	-	+	-
Cold -Finished Pipes and Tubes, (Inches)
0.500 to 5⁄8, excl	0.005	0.005	15.0	15.0
5⁄8 to 11⁄2, incl	0.0075	0.0075	10.0	10.0
Over 1 1⁄2 to 3 1⁄2, incl	0.010	0.010	10.0	10.0
Over 3 1⁄2 to 4 1⁄2, incl	0.015	0.015	10.0	10.0
Over 4 1⁄2 to 6, incl	0.020	0.020	12.5	12.5
Over 6 to 6 5⁄8, incl	0.025	0.025	12.5	12.5
Millimeters
12.7 to 15.8, excl	0.127	0.127	15.0	15.0
15.8 to 38.1, incl	0.190	0.190	10.0	10.0
Over 38.1 to 88.9, incl	0.254	0.254	10.0	10.0
Over 88.9 to 114.3, incl	0.381	0.381	10.0	10.0
Over 114.3 to 152.4, incl	0.508	0.508	12.5	12.5
Over 152.4 to 168.3, incl	0.635	0.635	12.5	12.5
Hot-Finished Tube, (Inches)
2 1⁄2 to 5 1⁄2, excl	0.031	0.031	12.5	12.5
5 1⁄2 to 9 1⁄4, incl	0.047	0.047	12.5	12.5
Millimeters
63.5 to 139.7, excl	0.787	0.787	12.5	12.5
139.7 to 234.9, incl	1.19	1.19	12.5	12.5

Specimen Preparation: -

Tension test- The tubes in the final condition (temper) of production are taken as specimen for tension test, and are tested in the direction of fabrication. Tubes are tested in full tubular size or longitudinal strip with reduced gage lengths. The tension test should be performed on stress-relived tubes prior to annealing the ends.

Hardness test- The hardness test is performed on the inside of the tube near the end or on the specimen cut from the end.

Workman Ship, Finish and Appearance: -

ASTM B407 Seamless Pipes are individually covered under the specification of ASTM B407, so that the premium quality of the material is retained and there are no damages in the last stages of production. The pipe should be uniform in quality and temper, commercially straight, smooth and free of any imperfections.

Inspection: - The tubes should be inspected as agreed upon by the purchaser and the manufacturer.

Rejection and Rehearing: - The pipe not adhering to the ASTM B407 specification or to authorized modifications should be subjected to rejection. The rejected specimens should be preserved for not less than 3 weeks from test report, and the manufacturer may claim for rehearing within that stipulated time period.

Certification: -

If it is mentioned in purchase order or the contract, then the manufacturer should be able to produce a certificate stating that the material has been manufactured and tested and inspected again with respect to the specification. It should also note the test results of the specimen samples which meets the specification requirements, and should be displayed as and when required.

Product marking:-

ASTM B407 Seamless Tubes are tagged along with the imprints relevant to the job information which also contains information about the delivering destination like heat number, size, material, and part number.