ASTM B676 / ASME SB676 / UNS N08366 and UNS N08367 Welded Tube supplier & distributor in India

ASTM B-676 / ASME SB-676

SPECIFICATION FOR UNS N08366 AND UNS N08367 WELDED TUBE
UNS N08366 AND UNS N08367

1.Scope

1.1 This specification covers UNS N08028 seamless cold-finisfd tubes intended for general corrosive service.

1.2 This specification covers outside diameter and average wall tube, or otside diameter and minimum wall tbe.

1.2.1 This specification covers tubes 5/8 to 5 in. (15.9 o 127 mm), inclusive, in outside diameter and 0.065 to 0.500 in. 9 1.65 to 12.70 mm), inclusive, in wall thickness.

NOTE 1 ? Tubing having other dimensions may be furnished spon agreeent between he manufacturer and the purchader, provided such tubes comply with all other requirements of this specification.

1.3 The values stated in inch-pound units are to be regarded as the standard.

TABLE1 CHEMICAL REQUIREMENTS

Element	composition Limits, %		Product(Check) Analysis Variations, under min or over max of the Specified Limit of Element, %
Element	N08366	N08367
Carbon	0.035max	0.030max	0.005
Manganese	2.00max	2.00max	0.04
Silicon	1.00max	1.00max	0.05
Phosphorus	0.040max	0.040max	0.005
Sulfur	0.030max	0.030max	0.005
Chromium	20.00 to 22.00	20.00 to 22.00	0.25
Nickel	23.50 to 25.50	23.50 to 25.50	0.20
Molybdenum	6.00 to 7.00	6.00 to 7.00	0.15
Nitrogen	...	0.18 to 0.25	0.01
IronA	Remainder	Remainder
Copper	...	0.75max	0.04

AIron shall be determined arithmetically by difference.

TABLE2 MECHANICAL PROPERTIES

Type	condition(Temper)	Tensile Strength, min, ksi(MPa)	Yield Strnegth, 0.2% Offset, min, ksi(MPa)	Elongation in 2 in . or 50mm(or 4D),min, %
N08366	Solution treated(Class 1 and Calss2)	75(517)	30(206)	30
N08367	Solution treated(Class 1 and Calss2)	100(690)	45(310)	30

TABLE3 PERMISSIBLE VARIATIONS IN OUTSIDE DIAMETERA AND WALL THICKNESS

Specified Outside Diameter	Permissible Variations
	Outside DiameterB		Wall Thickness, %
	Plus	Minus	Plus	Minus
Inches
1/8 to 5/8, excl	0.005	0.005	15.0	15.0
5/8 to 1 1/2, 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 41/2, incl	0.015	0.015	10.0	10.0
Over 4 1/2 to 5 1/2, incl	0.020	0.020	12.5	12.5
Millimetres
3.2 to 15.9, excl	0.13	0.13	12.5	12.5
15.9 to 38.1, incl	0.19	0.19	10.0	10.0
Over 38.1 to 88.9, incl	0.25	0.25	10.0	10.0
Over 88.9 to 114.3, incl	0.38	0.38	10.0	10.0
Over 114.3 to 127, incl	0.51	0.51	12.5	12.5

AThese permissible variations in outside diameter apply only to material as finished at the mill before subsequent swaging,
expanding, bending, polishing, or other fabricating operations.
BOvality is the difference between themaximum and the minimumouside diameter measured at any one cross section.
There is no additional tolerance for ovality on material having a nominal wall thickness for more than 3% of the outside diameter.
On this material, the average of the maximum and the minimum ouside diameter measurements will fall within the ouside diameter
tolerance spreads shown in Table 3, applied ±1/2, is allowed for material having a nominal wall thickness of 3% or less of the
nominal ouside diameter.

TABLE4 PERMISSIBLE VARIATIONS IN LENGTHA

Outside Diameter, in.(mm)	Cut Length, in.(mm)
Outside Diameter, in.(mm)	Over	Under
Under 2(50.8)	1/8(3.2)	0
2(50.8) and over	3/16(4.8)	0

ATHese permissible variations in length apply to pipe before bending.
They apply to cut lengths up to and including 24 ft(7.3m).
For lengths over 24 ft, an additional over-tolerance of 1/8in.(3.2mm) for each 10 ft (3.0m) or fraction thereof shall be permissible
up to a maximum additional over-tolerance of 1/2 in.(12.7mm).

Test Methods

13.1 Determine the chemical composition, mechanical, and other properties of the material as enumerated in this specification, in case of disagreement, in accordance with the following methods :

Test	ASTM Designation
Chemical analysis	E 354
Tension	E 8
Rounding procedure	E 29

For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or a calculated values shall be rounded as indicated, in accordance with the rounding method of Practice E 29 :

Test	Rounded Unit for Observed or Calculated Value
Chemical composition and tolerances (when expressed in decimals)	Nearest unit in the last right-hand place of figures of the specified limit. If two choces are possible, as when the digits dropped are exactly a 5 or a 5 followed only by zeros, choose the one ending in an even digit, with zero defined as an even digit.
Tensile strength, and yield strength	Nearest 1000 psi (6.9 MPa)
Elongation	Nearest 1%

Product successfully added to your shopping cart

There are 64 items in your cart. There is 1 item in your cart.

Categories

Surplus stock of Steel Pipes & Tubes:

Specialist in:

Offering best price on:

Widest inventory of:

ASTM B676 / ASME SB676 / UNS N08366 and UNS N08367 Welded Tube supplier & distributor in India

Steel pipe & tube ready inventory: