ASTM A691 Qib 91 EFW Hlau Yeeb Nkab

ASTM A691 Qib 91 EFW Hlau Yeeb Nkab
Txhawb tshuaj


ASTM A691 Qib 91 EFW steel yeeb nkab

ASTM A691, Cov Qauv Txuj rau Cov Quav thiab Cov Hlau Hlau, Hluav Taws Xob-Fusion-Welded rau Kev Kub Siab Cov Kev Pab Thaum Kub Kub. Raws li hom chromoly alloyed yeeb nkab, SA A691 Qib hli 91 muaj 9% chromium thiab 1% molybdenumst los ntawm A387 / A387M qib 91 steel phaj.


Gr. 91 steel   (Gr 9Cr1Mo) raug tsim los txhim kho lub zog thiab kev tiv thaiv kab ntsig sib piv rau cov khoom siv pa. ASTM A691 Gr. 91 yog siv nrog kev kub hauj lwm ntawm 1040 - 1112 º F (560 - 600 º C) thiab cov kev kub ntxhov siab nyob rau ntau qhov ntawm 4000 psi (270 bar). Gr. 91 steel yeeb nkab yuav tsum tau siv cov khoom zoo thiab cov neeg ua haujlwm kom zoo.

 

Chav Kawm Ntawv:

Hoob 11, 12, 22, 23, 30, 31, 32, 33, 34, 60 ...

Txheej Txheem:

457-1422 hli

Phab ntsa thickness:

2-60mm

Ntev:

Nce random ntev / Ob zaug random ntev ntev

Daim ntawv thov:

Header systems thiab txuag dej; Daim ntawv thov kev ua haujlwm; Fais fab cog cov tshuab raj

 

A691 Qib 2 1/4 Cr tshuaj ntsuam:

Kev Tsim

C

Mn

P

S

Si

Cr

Mo

ASTM A691 Qib 91

0.08-0.12

 

0.30- 0.60

0.02

 

0.01

0.2-0.5

 

8.00-9.50

 

0.85-1.05

 

A691 Qib Kawm 1/4 Cr khoom ntiag tug:

Kev Tsim

Tensile zog

ksi [MPa]

Tawm kev muaj zog, min

ksi [MPa]

Kev loj hlob nyob rau hauv 8 nyob rau hauv [200mm], min%

ASTM A691 Qib 91

85-110 [585- 760]

60 [415]

18


Qib A691 Qib 91 muaj kev tiv thaiv zoo rau rupturing thiab cov tsiaj txhu zoo thiab kev xeb xaim. Cov khoom ntawm ASTM A691 Qib 91 Alloy Steel Pipes ua kom lawv muaj txiaj ntsig zoo. LINKUN STEEL muab kev siv nyiaj zoo ASTM A691 qib 91 Alloy Steel Pipes ntawm cov nqi muag khoom raws li koj cov specifications.

 


Kev nug