ASTM B337 - 95 scan

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ASTM 8337 95 - 0759530 05583b4 85T m

4Tb

Designation: B 337 - 95

AMERICAN SOCIETY FOR lESTlNG AND MAERIALS

1916 Race St. Philadelphia, Pa 19103

Reprinted from the Annual Book of ASTM Standards. Copyright ASTM

if not listed in the current combined index, will appear in the neti edition.

Standard Specification for

Seamless and Welded Titanium and Titanium Alloy Pipe’

This standard is issued under the fixed designation B 337; the number immediately following the designation indicates the year of

original adoption or, in the case of revision. the year of last revision, A number in parentheses indicates the year of last reapproval. A

superscript epsilon (c) jndicates an editorial change since the last revision or reapproval.

This specijiculion has been approved Jar use by agencies of the Deparlmennl of DeJense. Consah the DOD Index oJSpecijicu~ions and

SmndardsJiir ihe specific year oJissue which has been adopled hy the Deparlmeni of Defense.

1. Scope

1.1 This specification2 covers eight grades of seamless and

welded titanium pipe intended for general corrosion-resisting

and elevated-temperature service.

1.2 The values stated in inch-pound units are to be

regarded as the standard. The values given in parentheses are

for information only.

2. Referenced Documents

2.1 ASTM Slandards.

370 Test Methods and Definitions for Mechanical

Testing of Steel Products”

E 120 Test Methods for Chemical Analysis of Titanium

and Titanium Alloys4

2.2 ANSI Standard:

B 36.19 Stainless Steel Pipe’

3. Ordering Information

3.1 Orders for materials under this specification shall

include the following information as required:

3.1.1 Quantity,

3.1.2 Grade number (see 5.1 and 7. l),

3.1.3 Nominal pipe size and schedule (Section 14 and

Table X1.1),

3.1.4 Lengths, random or specified cut lengths (see 14.3),

3.15 Method of manufacture and finish (Section 4 and

15.1),

3.1.6 Restrictive chemistry, if desired (see 5.1, Table l),

3.1.7 Product analysis, if desired (Section 6),

3.1.8 Special mechanical properties, if desired (see 7.1,

Table 3),

3.1.9 Flattening tests (see 9. I),

3.1.10 Finish (see 15.1),

3.1.1 1 Marking (see 19. l),

3.1.12 Packaging (see l&l),

3.1.13 Inspection and required reports (Section 16), and

3.1.14 Disposition of rejected material (Section 17).

t This specification is under the jurisdiction of ASTM Committee B-10 on

Refractory Metals and Alloys and is the direct responsibility of Subcommittee

Bl0.01 on Titanium.

Current edition approved Feb. 15, 1995. Published April 1995. Originally

published as B 337 - 58 T. Last previous edition B 337 - 94.

2 For ASME Boiler and Pressure Vessel Code applications see related Specifi-

cation SB-337 in Section II of that Code.

3 AWIIIQ/ Book of ASTM Slandurds,

Vol 01.03.

4 Annuul Book gf ASTM Standards.

Vol 03.05.

s Available from American National Standards Institute, I I W. 42nd St., 13th

Floor, New York, NY 10036.

4. Materials and Manufacture

4.1 Seamless pipe may be made by any seamless method

that will yield a product meeting the requirements of this

specification.

4.2 Welded pipe shall be made from flat-rolled products

by an arc-welding process that will yield a product meeting

the requirements of this specification, Filler metal, if used,

shall be the same grade as the base metal, or the next lower

strength grade for welding Grades 2 and 3. For welding

Grades 7, 9, 10, 11, and 12, the tiller metal, if used, shall be

the same as the grade specified. Welded pipe may be further

reduced.

4.3 The pipe shall be furnished annealed, except for

Grade 9, which may be furnished in either the annealed or

stress-relief annealed condition, and Grade 10, which shall

be solution treated.

5. Chemical Composition

5.1 The titanium shall conform to the chemical require-

ments prescribed in Table 1.

6. Product Analysis

6.1 When requested by the purchaser and stated in the

purchase order, product analysis for any elements listed in

Table 1 shall be made on the finished product.

6.2 The product analysis tolerances, listed in Table 2, do

not broaden the specified heat analysis requirements, but

cover variations between different laboratories in the mea-

surement of chemical content. The manufacturer shall not

ship finished product outside the limits specified in Table 1

for the applicable grade.

7. Tensile Requirements

7.1 The tensile properties of the pipe in the condition

specified at room temperature, shall conform to the require-

ments prescribed in Table 3. Mechanical properties for other

conditions may be established by agreement between the

manufacturer and the purchaser.

8. Bending Test

8.1 Pipe 2 in. (51 mm) and under in nominal diameter,

shall be capable of being bent cold through 90” around a

cylindrical mandrel that is twelve times the nominal diam-

eter of the pipe, without developing cracks.

9. Flattening Test

9.1 Welded or seamless pipe shall be capable of with-

standing, without cracking, flattening under a load applied

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.

Contact ASTM International (www.astm.org) for the latest information.

ASTM B33-7 95 - Oi’5%30 05583b5

79b m

TABLE 1 Chemical Requirements

Element Composition. %

Grade 1 Grade 2 Grade 3 Grade 7 Grade 9 Grade 10 Grade 11 Grade 12

Nitrogen, max 0.03 0.03 0.05 0.03 0.02 0.05 0.03 0.03

carbon. n-lax 0.10 0.10 0.10 0.10 0.05 0.10 0.10 0.08

Hydrogen,* max 0.015 0.015 0.015 0.015 0.013 0.020 0.015 0.015

Iron, max 0.20 0.30 0.30 0.30 0.25 0.35 0.20 0.3

Oxygen, max 0.18 0.25 0.35 0.25 0.12 0.18 0.18 0.25

Palladium . . * . . . 0.12 to 0.25 . 0.12 to 0.25 .

Aluminum .., .,. . . . . 2.5 to 3.5 : : :

Molybdenum . . . . . . 10.0t013.0 ::: il:; to 0.4

Zirconium . . . . . . 4.50 to 7.50 . .

Vanadium . . . . 2.0 to 3.0 . . . . , . . .

Nlel

b:;

. . . , . . * 0.6 to 0.9

Reafduafse~c (each), max 0.1 0.1 0.1 0.1 0.1 0.1 0.05

Residuals~~ (total). max 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3

Tlanium (by diierance) remainder remainder remainder remain&r remainder remainder remainder remainder

4 Lower hydrogen values may be obtained by negotiation with the manufacturer.

e Need not be reported.

o A residual is an element present in a metal or alloy in small quantities and is inherent to the manufacturing process but not added intentionally. In titanium these

eternents include aluminum, vanadium, tin, iron, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium, palladium, yttrium, copper, silicon cobalt,

tantalum, nickel. boron, manganese, and tungsten.

gradually at room temperature until the distance between the 9.2 For welded pipe, the weld shall be placed in the

load platens is

inches.

is calculated as follows: position of maximum deformation.

H, in. = (1

e-k

t/D

10. Hydrostatic Test

where:

= minimum flattened height, in. (mm),

= nominal wall thickness, in. (mm), and

= nominal pipe diameter, in. (mm) (not pipe size).

For Grades 1, 2, 7, and 11

= 0.06

in. for all pipe sizes

For Grades 3 and 12

10.1 Each length of pipe shall withstand, without showing

bulges, leaks, or other defects, an internal hydrostatic pres-

sure that will produce in the pipe wall a stress of 50 % of the

minimum specified yield strength at room temperature. This

pressure shall be determined by the equation:

where:

P = 2St/D

e = 0.04 through I in. pipe size

e = 0.06 over I in. pipe size

NCITE I-All calculations are rounded to two decimal places. Exam-

ination for cracking shall be by the unaided eye.

= minimum hydrostatic test pressure, psi (MPa),

S = allowable fiber stress of one-half the minimum yield

strength,

= wall thickness, in. (mm), and

= outside diameter, in. (mm).

10.2 The maximum hydrostatic test pressure shall not

exceed 2500 psi (17.4 MPa) for sizes 3 in. (76 mm) and

under, or 2800 psi (19.3 MPa) for sizes over 3 in. (76 mm).

Hydrostatic pressure shall be maintained for not less than 5

s. When requested by the purchaser and so stated in the

order, pipe in sizes 14 in. (356 mm) in diameter and smaller,

shall be tested to one and one-half times the specified

working pressure, provided the fiber stress corresponding to

those test pressures does not exceed one-half the minimum

specified yield strength of the material, as determined by the

equation given in 10.1. When one and one-half times the

working pressure exceeds 2800 psi (19.3 MPa) the hydro-

static test pressure shall be a matter of agreement between

the manufacturer and the purchaser.

TABLE 2 Permissible Variations in Product Analvsis

Element Maximum or Specified

Range

Permissible

Variation in

Product Anafvsis

Nitrogen 0.05 +0.02

Carbon 0.10 +0.02

Hydrogen 0.015 +0.002

Iron 0.50 +0.15

Oxygen 0.30 +0.03

0.31 to 0.40 +0.04

Palladium 0.12 to 0.25 r0.02

Molybdenum 10.0 to 13.0 20.25

Zirconium 4.50 to 7.50 *0.30

Aluminum 2.50 to 3.50 io.40

Vanadium 2.00 to 3.00 f0.15

Molybdenum 0.2 to 0.4 *0.03

Nickel 0.8 to 0.9 *0.05

Residuals4 (each) 0.1 +0.02

* A residual Is an element present in a metal or alloy in small quantities and is

inherent to the manufacturing process but not added intentionally. In titanium

these elements include aluminum, vanadium, tin, iron, chromium, molybdenum,

niobium, zirconium, hafnium. bismuth, ruthenium, palladium, yttrium, copper,

&on, cobalt, tantalum, nickel, boron, manganese, and tungsten.

11. Test Specimens and Methods of Testing

11.1 The test specimens and the tests required by this

specification shall conform to those described in Test

Methods and Definitions A 370.

11.2 All routine

temperature.

11.3 For referee

used.

mechanical tests shall be made at room

purposes, Test Methods E 120 shall be

ASTM B337 95 - 0759530

0558366 622 m

TABLE 3 Tensile Requirements

Tensile Strength, min Yield Strength, 0.2% Offset Yield Elongation in

Grade

ksi MPa ksi

min

MPa ksi

max

MPa

2 in. or 50

mm, min. %

1 35 240 25 170 310 24

2 50 345 40 275 i5” 450 20

3 65 450 55 360 80 550 16

7 50 345 40 275 65 450 20

9” 125 860 105 725 . 10

96 90 620 70 405 15

IOC 100 690 90 620 . 10

11 35 240 25 170

310 24

12 70 463 50 345 16

* Properties for cold-worked and stress-relieved material.

a Annealed.

c Solution treated.

12. Number of Tests 14. Permissible Variations in Dimensions

12.1 Tests shall be made as follows on 2 % of the process

length pipes, but in no case less than one pipe, selected at

random from each lot (Note 2). Results of the following tests

shall be reported to the purchaser or his representative.

12.1.1 One tension test from each pipe selected.

12.1.2 The flattening test specified in 9.1.

12.1.3 The bend test, required by 8. I, when specified by

the purchaser.

14.1 Diameter-Variations in outside diameters shall not

exceed those prescribed in Table 4.

14.2

Thickness-The

variation in thickness at any point

shall not be more than +12.5 % of the nominal wall

thickness specified.

14.3 Length-Pipe shall be furnished in lengths as speci-

lied in the purchase order. No pipe shall be under the

specified length and not more than

t/4

in.

(6.4

mm) over that

specified.

NOTE

2-The term “lot” applies to all pipe of the same nominal size

and wall thickness that is produced from the same heat of titanium and

subjected to the same annealing and finishing operations.

NOTE

3-A system of standard pipe sizes approved by ANSI as

American National Standard for Stainless Steel Pipe (ANSI B36.19-

1965) reproduced as Table XI. I in the Appendix to this specification,

shall apply, pending the development of similar standards for titanium.

12.2 If any test specimen shows defective machining or

develops flaws due to the preparation, the specimen may be

discarded and another substituted.

12.3 If the percentage of elongation of any tension test

specimen is less than that specified in 7.1, and any part of the

fracture is more than

3/4

in. (19 mm) from the center of the

gage length as indicated by scratches marked on the spec-

imen before testing, the specimen may be discarded and

another substituted.

15. Finish

15.1 The finished pipe shall be reasonably straight, shall

have smooth ends, free of burrs, and shall be free of injurious

external and internal imperfections of a nature that will

interfere with the purpose for which it is intended. Minor

defects may be removed providing the dimensional toler-

ances of Section 14 are not exceeded. Unless otherwise

specified, the pipe shall be furnished free of scale.

12.4 Each length of pipe shall be subjected to the hydro-

static test specified in 10.1 and 10.2. 16. Inspection

13. Retests

13.1 If the results of any mechanical tests of any lot do not

conform to the requirements specified in 7.1, 8.1, or 9.1,

retests shall be made on additional pipe of double the

original number from the same lot, each of which shall

conform to the specified requirements.

16.1 All tests and inspection shall be made at the place of

manufacture prior to shipment and at the manufacturer’s

expense unless otherwise specified, and shall be so conducted

as not to interfere unnecessarily with the operation of the

works. When specified in the order, the manufacturer shall

notify the purchaser in time so that the purchaser may have

his inspector present to witness any part of the tests that may

be desired.

TABLE 4 Permissible Variations in Diameter

Permissible Variations in Outside Diameter

Nominal Diameter

Over Under

‘/a to 1% in. (3.2 to 38 mm), incl VW in. (0.397 mm) V32 in. (0.794 mm)

Over 1% to 4 in. (38 to 102 %2 in. (0.794 mm) VW in. (0.794 mm)

mm), incl

16.2 When agreed upon in writing between the manufac-

turer and the purchaser, a certification that the material

conforms to the requirements of this specification shall be

the basis of the acceptance of the material. Otherwise the

manufacturer shall report to the purchaser or his representa-

tive the results of the chemical analyses and mechanical tests

made in accordance with this specification.

Over 4 to 8 in. (102 to 203 mm),

inct

%S in. (1.586 mm) %2 in. (0.794 mm)

17. Rejection

Over 8 to 12 in. (203 to 305

mm), incl

3/m in. (2.362 mm) %2 in. (0.794 mm)

17.1 Material not conforming to this specification or to

authorized modifications shall be subject to rejection. Unless

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摘要：

ASTM B337 - 95 scan 是美国材料与试验协会（ASTM）发布的一项已撤销标准，主要涵盖无缝及焊接钛管的技术规范，适用于工业管道系统、化工设备及航空航天等领域中要求高耐腐蚀性、轻量化和优异机械性能的钛合金管材。该扫描版文档保留了1995年版本的原始技术参数，包括化学成分、拉伸强度、尺寸公差及无损检测要求等关键指标，对于需要参考历史标准进行合规检测、材料替换或工程回溯的用户具有重要参考价值。尽管该标准已被更新的ASTM B861或B862取代，但本扫描件仍是图书馆藏、标准溯源及非新版

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