ASTM B337 / ASME SB337 / Seamless and Welded Titanium and Titanium Alloy Pipe supplier & distributor in India

ASTM B-337 / ASME SB 337

SPECIFICATION FOR SEAMLESS AND WELDED TITANIUM AND TITANIUM ALLOY PIPE

1.Scope

1.1 This specification covers six of seamless and welded tianum pipe intended for gerral corrosion-resisting and elevated-temperature service.

1.2 The values stated in inch-pond units sre to bee regardedsa the standard. The values given in parentheses are for informaition only.

TABLE1 CHEMICAL REQUIREMENTS

Element	Composition, %
Element	Grade 1	Grade2	Grade3	Grade 7	Grade9	Grade12
Nitogen, max	0.03	0.03	0.05	0.03	0.02	0.03
Carbon, max	0.10	0.10	0.10	0.10	0.05	0.8
Hydrogen, Amax	0.015	0.015	0.015	0.015	0.013	0.015
Iron, max	0.20	0.30	0.30	0.30	0.25	0.
Oxygen, max	0.18	0.25	0.35	0.25	0.12	0.25
Palladium	...	....	...	0.12 to 0.25	...	...
Aluminum	...	....	...	...	2.5 to 3.5	...
Molybdenum	...	....	...	...	...	0.2 to 0.4
Zirconium	...	...	...	...	...	...
Vanadium	...	...	...	...	2.0 to 3.0	...
Nickel	...	...	...	...	...	0.6 to 0.9
ResidualsB,C(each),max	0.1	0.1	0.1	0.1	0.1	0.05
ResidualsB,C(total),max	0.4	0.4	0.4	0.4	0.4	0.3
Titanium(by difference)	remainder	remainder	remainder	remainder	remainder	remainder

ALower hydrogen values may be obrained by negotiation with the manufacturer.
BNeed not be reported.

CA residual is an element present in a metal or alloy in small quantities and is ingerent to the manufacturing process but not added intentionally.

In titanium these elements include luminum, vanadium, tin, iron, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium, palladium, yttrium, copper, silicon, cobalt, tantalum, nickel, boron, manganese, and tungsten.

TABLE2 PERMISSIBLE VARIATIONS IN PRODUCT ANALYSIS

Element	%
Element	Maximum or Specified Range	Permissiible Variarion in product Analysis
Nitrogen	0.05	+0.02
Carbon	0.10	+0.02
Hydrogen	0.015	+0.002
Iron	0.50	+0.12
	0.30	+0.03
oxygen	0.31 to 0.40	+0.04
Palladium	0.12 to 0.25	±0.02
Molybdenum	10.0 to 13.0	±0.025
Zirconium	4.50 to 7.50	±0.30
Aluminum	2.50 to 3.50	±0.40
Vanadium	2.00 to 3.00	±0.15
Molybdenum	0.2 to 0.4	±0.03
Nickel	0.6 to 0.9	±0.05
ResidualsA(each)	0.1	+0.22

AA residual is an element present in a metal or alloy in small qquantities and is inherent to the manufacturing process but not added intentionally. In titanium these elements include aluminum. vanadium, tin, iron, chromium, molybdenum, niobium, zircnium, hafnium, bismuth, ruthenium, palladium, yttrium, copper, silicon, cobalt, tantalum, nickel, boron, manganees, and tungsten.

TABLE3 TENSILE REQUREMENTS

Grade	Tensile Strength, min		Yield Strength, 0.2% Offset Yield
	Tensile Strength, min		min		max		Elongation in 2 in. or 50mm,min,%
	ksi	MPa	ksi	MPa	ksi	MPa	Elongation in 2 in. or 50mm,min,%
1	35	240	25	170	45	310	24
2	50	345	40	275	65	450	20
3	65	450	55	380	80	550	18
7	50	345	40	275	65	450	20
9	125	860	105	725	...	...	10
9	90	620	70	485	...	...	15
12	70	483	50	345	...	...	18

APorperties for cold-worked and stress-relieved materia.

BAnnealed.

TABLE4 PERMISSIBLE VARIATIONS IN DIAMETER

Nominal Diameter	Permissible Variations in Outside Diameter
Nominal Diameter	Over	Under
1/8 to 1 1/2 in.(3.2 to 38mm), incl	1/64 in. (0.397mm)	1/32 in.(0.794mm)
Over 1 1/2 to 4 in.(38 to 102mm), incl	1/32 in. (0.794mm)	1/32 in.(0.794mm)
Over 4 to 8 in.(102 to 203mm), incl	1/16 in. (1.588mm)	1/32 in.(0.794mm)
Over 8 to 12 in.(203 to 305mm), incl	3/32 in. (2.382mm)	1/32 in.(0.794mm)

APPENDIX (Nonmadatory Information) X1. PIPE DIMENSIONS

X1.1 Table X1.1 is a reprint of ANSI Standard for Stainless Steel Pipe (ANSI B36.19-1965) which is referred to in
Note 2 under Section 12 of this specification.

TABLE X1.1 DIMENSIONS OF WELDED AND SEAMLESS TITANIUM PIPE

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

Nominal Pipe Size, in.	Outside Diameter, in.	Nominal Wall Thickness, in.
Nominal Pipe Size, in.	Outside Diameter, in.	Schedule 5S	Schdule 10S	Schdule 40S	Schdule 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	0.113	0.179
-
1¼	1.660	0.065	0.109	0.140	0.191
1½	1.900	0.065	0.109	0.145	0.200
2	2.375	0.065	0.109	0.154	0.218
-
2½	2.875	0.083	0.120	0.203	0.276
3	3.500	0.083	0.120	0.216	0.300
3½	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

Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI)

ASTMSTANDARD	UNS NO.	KOREA/JAPANES
ASTMSTANDARD	UNS NO.	KS/JIS Symbol	KS/JIS Numbe	Remarks
B 337 Seamless and Welded Titinium and Titnium Alloy Pipie
Grade 1		TTP28/TTP28	D5574/H4630
Grade 2		TTP35/TTP35	D5574/H4630
Grade 3		TTP49/TTP49	D5574/H4630
Grade 7		TTP36Pd/TTP35Pd	D6726/H4535
Grade 11		TTP28Pd/TTP28Pd	D6726/H4535
		TTP49Pd/TTP49Pd	D6726/H4535

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