ASTM B658 / ASME SB658 / Seamless and Welded Zirconium and Zirconum Alloy Pipe supplier & distributor in India

ASTM B-658 / ASME SB-658
SPECIFICATION FOR SEAMLESS AND WELDED ZIRCONIUM AND ZIRCONUM ALLOY PIPE

1.Scope

1.1This specification covers three grades of seamless and welded zirconium pipe.

1.2 The values stated in inch-pound units are to be regarded as the standad;

1.3 The following precautionary caveat pertains only to the test methods portion, Section 13, of this specification: this standard does not purport to address all of the safety problems, if any, associated with its use. It is he responsility of the use of this standad to establish appropriate safety and health practices and detemine the applicability of regulatory limitations prior to use.

TABLE1 CHEMICAL REQUIREMENTSA

Element	Composition, %
Element	R60702	UNS Frade designation R60704	R60705
Zirconium+hafnium, min	99.2	97.5	95.5
Hafnium, max	4.5	4.5	4.5
Iron+chromium	0.2 max	0.2 to 0.4	0.2 max
Tin	...	1.0 to 2.0	...
Hydrogen, max	0.005	0.005	0.005
Nitorgen, max	0.025	0.025	0.025
Carbon, max	0.05	0.05	0.05
Niobium	...	...	2.0 to 3.0
Oxygen, max	0.16	0.18	0.18

ABy agreement between the putchaser and the manufacturer, analysis may be required and limits established for
elements and compounds not specified in the able of chemical compositions.

TABLE2 PERMISSIBLE VARIATION IN CHECK ANALYSIS BETWEEN DIFERENT LABORATORIES

Element	Permissible Variation in Product Analysis, %
Hydrogen	0.002
Nitrogen	0.01
Carbon	0.01
Hafnium	0.1
Iron+chromium	0.025
Tin	0.05
Niobium	0.05
Oxygen	0.02

TABLE3 TENSILE REQUIREMENTS

	UNS Frade Designations
	R60702	R60704	R60705
Tensile strength, min, ksi(MPa)	55(3790	60(413)	80(552)
Yieldstrnegth, min, ksi(MPa)	30(207)	35(241)	55(379)
Elongation in 2 in. or 50mm, min, %A	16	14	16

AWhen a sub-size specimen is used, the gage length shall be as specified in Test Methods E 8 for that specimen. TABLE4

PERMISSIBLE VARIATIONS IN DIAMETERA

	Permissible Variations in Out side Diamter, in. (mm)
Nominal Diameter, in. (mm)	Over	Under
1/8 to 1 1/2 (3.2 to 38), incl	1/64 (0.397)	1/32 (0.794)
Over 1 1/2 to 4 (38 to 102), incl	1/32 (0.794)	1/32 (0.794)
Over 4 to 8 (102 to 203), incl	1/16 (1.588)	1/32 (0.794)
Over 8 to 2 (203 to 305), incl	3/32 (2.382)	1/32 (0.794)

AFor seamless pipe only. Tolerances on welded pipe shall be as agreed upon between the manufacturer and the purchaser.

APPENDIX (Nonmadatory Information) X1. PIPE DIMENSIONS

X1.1 Table X1.1 is a reprint of Table 1 of ANSI B36.19

TABLE X1.1 DIMENSIONS OF WELDED AND SEAMLESS ZIRCONIUM PIPE

NOTE -The decimal thickness listed for the respective pipe sizes represents their nominal or average wall dimensions.

		Nominal Wall Thickness, in.
Nominal Pipe Size, in.	Outside Diameter, in.	Schedule 5S	Schedule 10S	Schedule 40S	Schedule 80S
1/8	0.405	...	0.049	0.068	0.095
1/4	0.540	...	0.065	0.088	0.119
3/8	0.675	...	0.065	0.091	0.126
1/2	0.840	0.065	0.083	0.109	0.147
3/4	1.050	0.065	0.083	0.113	0.154
1	1.315	0.065	0.109	0.133	0.179
1 1/4	1.660	0.065	0.109	0.140	0.191
1 1/2	1.900	0.065	0.109	0.145	0.200
2	2.375	0.065	0.109	0.154	0.218
2 1/2	2.875	0.083	0.120	0.203	0.276
3	3.500	0.083	0.120	0.216	0.300
3 1/2	4.000	0.083	0.120	0.226	0.318
4	4.500	0.083	0.120	0.237	0.337
5	5.563	0.109	0.134	0.258	0.375
6	6.625	0.109	0.134	0.280	0.432
8	8.625	0.109	0.148	0.322	0.500
10	10.750	0.134	0.165	0.365	0.500
12	12.750	0.156	0.180	0.375	0.500

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