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Introduction to ASTM B861 for seamless titanium pipes-CONTINENTAL STEEL CO.,LTD
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Introduction to ASTM B861 for seamless titanium pipes

Apr 30, 2024

Introduction to ASTM B861 for seamless titanium pipes

ASME SB 861 / ASTM B861, Standard Specification for Titanium and Titanium Alloy Seamless Pipe, ASTM B861 Grade 2 Titanium Pipe is primarily used in heat exchangers in chemical processing due to the superior corrosion resistance of titanium. Covers the requirements for 34 grades of titanium and titanium alloy seamless pipes for general corrosion resistance and high temperature applications.

ASTM B861 Titanium Alloy Seamless Pipe

Material grade

Material component

Gr1/Gr2/Gr3

unalloyed titanium

Gr7

unalloyed titanium plus 0.12 to 0.25% palladium

Gr9

titanium alloy (3%aluminum,2.5%vanadium)

Gr11

unalloyed titanium plus 0.12 to 0.25%palladium

Gr12

titanium alloy(0.3%molybdenum,0.8% nickel)

Gr16

unalloyedtitanium plus 0.04-0.08% palladium

 

 

ASTM   B861

Grade

Commercially Pure(CP) Grades

Grade 1,Grade 2,Grade 3,Grade 7,Grade 11 (CP Ti-0.15Pd),Grade 16,Grade 17,Grade 26,Grade 27

Titanium Based Alloys Grades

Grade 5,Grade 9 ( Ti 3Al-2.5V),Grade 12 (Ti-0.3-Mo-0.8Ni),Grade 19 (Ti Beta   C),Grade 23 (Ti 6Al-4V ELI),Grade 28

 

ASTM B861 grade2 Chemical composition

Titanium (Ti)

Ni

C

H

Fe

O

Total

Balance

0.03 max

0.08

0.015

0.30max

0.25

0.0-0.10

 

ASTM B861 grade2 Physical Properties

Mechanical Property

Value

Proof Stress

275-450 MPa

Tensile Strength

345 Min MPa

Elongation A50 mm

20 Min %

 

 

 

 

 

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