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Unformatted text preview: SPECIFICATION FOR WELDED NICKEL-IRONCHROMIUM ALLOY PIPE
(Identical with ASTM Speciﬁcation B 514-95, except that certiﬁcation has been made mandatory.)
01 1. Scope 1.1 This speciﬁcation covers nickel-iron-chromium alloys in the form of welded, cold-worked, and annealed pipe for general corrosive service and heat-resisting applications. These products are furnished in three alloys: UNS N08120, UNS N08800, and UNS N08810. Alloy UNS N08800 is employed normally in service temperatures up to and including 1100°F (593°C). Alloys UNS N08120 and UNS N08810 are employed normally in service temperatures above 1100°F where resistance to creep and rupture is required, and they are annealed to develop controlled grain size for optimum properties in this temperature range. 1.2 This speciﬁcation covers outside diameter and nominal wall pipe shown in ANSI B36.19. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of the speciﬁcation. 1.3 The values stated in inch-pound units are to be regarded as the standard. of the current edition of Speciﬁcation B 775 unless otherwise provided herein. 4. Ordering Information 4.1 Orders for material under this speciﬁcation should include the following information: 4.1.1 Alloy name or UNS number. 4.1.2 ASTM designation and year of issue. 4.1.3 Condition (temper) (Table 1). 4.1.4 Dimensions: 188.8.131.52 Nominal pipe size or outside diameter and schedule number or nominal wall thickness. 184.108.40.206 Length (speciﬁc or random). 4.1.5 Quantity (feet or metres, or number of pieces). 4.1.6 Certiﬁcation — Certiﬁcation and a report of test results are required. 2. Referenced Documents
TABLE 1 MECHANICAL PROPERTY REQUIREMENTS
Yield Tensile Strength, Elongation Strength, 0.2% in 2 in. or min, psi Offset, min, 50 mm, (MPa) psi (MPa) min, % 90,000 (621) 75,000 (520) 65,000 (450) 40,000 (276) 30,000 (207) 25,000 (170) 30 30 30 2.1 ASTM Standard: B 775 Speciﬁcation for General Requirements for Nickel and Nickel Alloy Seamless and Welded Pipe 2.2 ANSI Standard: B36.19 Stainless Steel Pipe Alloy UNS N08120 Condition (Temper) Annealed Annealed Annealed 3. General Requirement UNS N08800 UNS N08810 3.1 Material furnished in accordance with this speciﬁcation shall conform to the applicable requirements
649 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services SB-514 2001 SECTION II TABLE 2 CHEMICAL REQUIREMENTS
Composition Limits, % Alloys N08800 and N08810 30.0 35.0 19.0 23.0 39.5 1.5
B 4.1.7 Samples for Product (Check) Analysis — State whether samples for product (check) analysis should be furnished. 4.1.8 Purchaser Inspection — If the purchaser wishes to witness tests or inspection of material at the place of manufacture, the purchase order must so state indicating which tests or inspections are to be witnessed. Element Nickel Chromium Alloy N08120 35.0 min 39.0 max 23.0 min 27.0 max remainder 1.5 0.02 min 0.10 max 0.50 max 1.0 0.03 0.40 max ... 0.20 max ... 0.4 min 0.9 max 2.50 max 0.040 max 2.50 max 3.0 0.15 min 0.30 max 0.010 max 5. Materials and Manufacture 5.1 Pipe shall be made from ﬂat-rolled alloy by an automatic welding process with no addition of ﬁller metal. Subsequent to welding and prior to ﬁnal solution treatment, the material shall be cold worked either in both weld and base metal or in weld metal only. 5.2 Pipe shall be furnished with a scale-free ﬁnish. When bright annealing is used, descaling is not necessary. Iron Manganese, max Carbon Copper, max Silicon, max Sulfur, max Aluminum Titanium Columbium Molybdenum Phosphorus Tungsten Cobalt, max Nitrogen Boron
A B min max min max minA 6. Chemical Composition 6.1 The material shall conform to the requirements as to chemical composition prescribed in Table 2. 6.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysis variations in Table 1 of Speciﬁcation B 775. ... 0.75 1.0 0.015 0.15 min 0.60 max 0.15 min 0.60 max ... ... ... ... ... ... ... ... ... Iron shall be determined arithmetically by difference. Alloy UNS N08800: 0.10 max. Alloy UNS N08810: 0.05 to 0.10. 7. Mechanical and Other Requirements 7.5 Nondestructive Test Requirements: 7.5.1 Category 1 — Each piece of each lot shall be subject to one of the following four tests: hydrostatic, pneumatic (air underwater), eddy current, or ultrasonic. 7.5.2 Category 2 — Each piece in each lot shall be subjected to a leak test and an electric test as follows: 220.127.116.11 Leak Test — Hydrostatic or pneumatic (air underwater). 18.104.22.168 Electric Test — Eddy current or ultrasonic. 7.6 The manufacturer shall have the option to test Category 1 or Category 2 and select the nondestructive test methods, if not speciﬁed by the purchaser.
650 7.1 Mechanical Properties — The material shall conform to the requirements for mechanical properties prescribed in Table 1. 7.2 Grain Size — A transverse sample representing the full-wall thickness of annealed alloys UNS N08120 and UNS N08810 shall conform to an average grain size of ASTM No. 5 or coarser. 7.3 Flattening Test — Pipe shall be capable of withstanding, without cracking, ﬂattening under a load applied gradually at room temperature until the distance between the platens is ﬁve times the wall thickness. The weld shall be positioned 90 deg from the direction of the applied ﬂattening force. 7.4 Annealing Temperature — Alloy UNS N08120 shall be annealed at 2150°F (1177°C) minimum, and alloy UNS N08810 shall be annealed at 2050°F (1120°C) minimum. COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services PART B — NONFERROUS MATERIAL SPECIFICATIONS SB-514 8. Number of Tests 8.1 Chemical Analysis — One per lot. 8.2 Mechanical Properties — One test per lot. 8.3 Flattening — One test per lot. 8.4 Grain Size — One test per lot. 8.5 Nondestructive — Each piece in each lot. 9. Certiﬁcation 9.1 A manufacturer’s certiﬁcation shall be furnished to the purchaser stating that the material has been manufactured, tested, and inspected in accordance with this speciﬁcation, and that the test results on representative samples meet speciﬁcation requirements. A report of the test results shall be furnished. 10. Keywords 10.1 UNS N08120; UNS N08800; UNS N08810; welded pipe 651 COPYRIGHT American Society of Mechanical Engineers Licensed by Information Handling Services ...
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This note was uploaded on 10/04/2010 for the course ENGINEERS 22453175 taught by Professor Heydari during the Spring '08 term at Miami University.
- Spring '08