ASTM A53 Qib B Seamless yog peb cov khoom nrov tshaj plaws nyob rau hauv cov lus qhia no thiab A53 yeeb nkab feem ntau yog ob daim ntawv pov thawj rau A106 B Seamless yeeb nkab.
ASTM A53 Qib B yog cov khoom siv raws li American steel yeeb nkab qauv, API 5L Gr.B kuj yog cov khoom siv hauv Asmeskas, A53 GR.B ERW yog hais txog hluav taws xob tsis kam welded steel yeeb nkab ntawm A53 GR.B; API 5L GR.B Welded yog hais txog cov khoom siv Welded steel yeeb nkab ntawm API 5L GR.B.
Chemical Properties%
| / |
Qib |
C,
max |
Mn,
max |
P,
max |
S,
max |
Cu*,
max |
Ni*,
max |
Cr*, ib
max |
Mo*,
max |
V*,
max |
| Hom S (Seamless) |
A |
0.25 |
0.95 |
0.05 Nws |
0.05 Nws |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 ib |
| B |
0.3 |
1.2 |
0.05 Nws |
0.05 Nws |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 ib |
| Hom E (Electric-resistance Welded) |
A |
0.25 |
0.95 ib |
0.05 Nws |
0.05 Nws |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 ib |
| B |
0.3 |
1.2 |
0.05 Nws |
0.05 Nws |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 ib |
| Hom F (Qhov cub-welded) |
A |
0.3 |
1.2 |
0.05 Nws |
0.05 Nws |
0.4 |
0.4 |
0.4 |
0.15 |
0.08 ib |
* Tag nrho cov muaj pes tsawg leeg rau tsib lub ntsiab lus yuav tsum tsis pub tshaj 1.00%
Mechanical Properties
|
Qib A |
Qib B |
| Tensile zog, min., psi, (MPa) |
48,000 (330) |
60,000 (415) |
| Yield zog, min., psi, (MPa) |
30,000 (205) |
35,000 (240) |
(Ceeb Toom: Qhov no yog cov ntaub ntawv sau los ntawm ASME Specification A53. Thov xa mus rau tus qauv tshwj xeeb lossis Specification lossis tiv tauj peb kom paub meej ntxiv.)
ASTM A53 seamless steel yeeb nkab yog ib hom American standard hom. A53-F sib raug rau Tuam Tshoj cov khoom siv Q235, A53-A sib raug rau Tuam Tshoj cov khoom siv No.
Cov txheej txheem ntau lawm
Seamless steel yeeb nkab raug txheej txheem yog muab faib ua kub dov thiab txias seamless yeeb nkab.
1. Cov txheej txheem ntau lawm ntawm kub dov seamless steel yeeb nkab: raj billet → cua sov → perforation → peb-cov menyuam / cross-rolling & nruam dov → de-pipe → sizing → txias → straightening → hydraulic test → marking → seamless steel yeeb nkab nrog leverage nyhuv pom.
2. Cov txheej txheem tsim khoom ntawm cov khaub thuas kos seamless steel raj: raj → cua sov → perforation → taub hau → annealing → pickling → oiling → ntau qhov txias txias → blank raj → heat treatment → straightening → hydraulic test → marking → storage.
Daim ntawv thov
1. Kev tsim kho: cov kav dej hauv qab, cov dej hauv av, thiab kev thauj mus los ntawm cov dej kub.
2. Mechanical processing, bearing sleeves, processing machinery parts, thiab lwm yam.
3. Hluav taws xob: Gas xa, Hydroelectric zog kua kav dej
4. Anti-static raj rau cua fais fab nroj tsuag, thiab lwm yam.
