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A335 P91 alloy ígwè ọkpọkọ
A335 P91 alloy ígwè ọkpọkọ
A335 P91 alloy ígwè ọkpọkọ
A335 P91 alloy ígwè ọkpọkọ

ASTM A335 P91 Alloy Steel Pipe

Alloy Steel P91 Pipes dị mma maka ngwa. Ọtụtụ mgbe, ọ na-adabara na ụlọ ọrụ ike na osisi petrochemical.
Ntinye ngwaahịa

Nkọwa ọkọlọtọ Astm A335 maka ọkpọkọ ferritic alloy-steel na-enweghị nkebi maka ọrụ okpomọkụ dị elu.

A na-enye ọkọlọtọ ASTM A335 n'okpuru aha edobere A 335/A 335M; ọnụ ọgụgụ ozugbo na-esochi nhọpụta ahụ na-egosi afọ nke nkuchi mbụ ma ọ bụ, n'ihe banyere ngbanwe, afọ nke ngbanwe ikpeazụ. Ọnụọgụ dị na mbikọ na-egosi afọ nkwado ikpeazụ. Epsilon superscript (ュ) na-egosi mgbanwe nchịkọta akụkọ kemgbe ndogharị ikpeazụ ma ọ bụ nkwenye ọzọ.

Oke

1.1 Nkọwapụta a na-ekpuchi ọnụ (nkezi) ọkpọkọ igwe anaghị agba nchara nke ezubere maka ọrụ okpomọkụ dị elu (Mote 1). Pipe nyere iwu nkọwapụta a ga-adabara maka ịgbado, flanging (vanstoning), na arụ ọrụ ndị yiri ya, yana maka ịgbado ọkụ. Nhọrọ ga-adabere n'ichepụta, ọnọdụ ọrụ, ihe eji arụ ọrụ, na njirimara okpomọkụ dị elu.

IHE 1 Α Ihe Mgbakwunye X1 depụtara nha na ọkpụrụkpụ paịpụ nke enwere ike nweta n'okpuru omume azụmahịa ugbu a.

1.2 Ọtụtụ akara ule ferritic steels (Ntuba ama 2) kpuchie.

Rịba ama 2

Akọwapụtara nchara ΑFerritic dị na nkọwapụta a dị ka nchara dị ala na nke etiti nwere ihe ruru yana gụnyere chromium 10%.
1.3 Ihe mgbakwunye chọrọ (S1 ruo S7) nke ụdị nhọrọ ka enyere. Ihe mgbakwunye ndị a chọrọ ka emee ule ndị ọzọ, ma mgbe achọrọ ya, a ga-ekwupụta ya n'usoro yana ọnụọgụ ule achọrọ.
1.4 A ga-ewere ụkpụrụ ndị ekwuru na nkeji inch-paụnd ma ọ bụ nkeji SI iche iche dị ka ọkọlọtọ. N'ime ederede, a na-egosi nkeji SI na braket. Ụkpụrụ ndị ekwuru na usoro nke ọ bụla abụghị kpọmkwem ihe ha nhata; ya mere, a ghaghị iji usoro ọ bụla mee ihe n'adabereghị na nke ọzọ. Ijikọta ụkpụrụ sitere na sistemụ abụọ ahụ nwere ike ibute enweghị nkwenye na nkọwapụta. Nkeji-paụnd inch ga-etinye ma ọ bụrụ na akọwapụtaghị aha “M” nke nkọwapụta a n'usoro.

Rịba ama 3ΑEdochiela onye nrụpụta ihe na-enweghị akụkụ NPS (nha ọkpọkọ ọnụ) n'ụkpụrụ a maka usoro ọdịnala dị ka "ọnụọgụ ọnụ," "nha," na "nha aha."

Ihe & Nrụpụta

Enwere ike ịmecha ọkpọkọ ọkụ ma ọ bụ dọpụta ya na-ekpo ọkụ site na ọgwụgwọ okpomọkụ nke edepụtara n'okpuru ebe a.


Nnwale ntụgharị ma ọ bụ ogologo ntanaka na ule mbelata, ule ike siri ike, ma ọ bụ Bend TestMechanical akọwapụtara

Maka ikpo ọkụ ihe eji eme ihe n'ụdị ọkụ ọkụ, a ga-eme nyocha na 5% nke ọkpọkọ site na nza ọ bụla a na-agwọ. Maka obere nza, ọ dịkarịa ala, a ga-anwale otu ọkpọkọ.
Maka ikpo ọkụ ihe eji eme ihe site na usoro na-aga n'ihu, a ga-anwale ule na ọnụ ọgụgụ zuru ezu nke ọkpọkọ iji mee 5% nke nza, ma ọ dịghị ihe na-erughị 2 ọkpọkọ.

Ihe ndetu maka ule ike ike:
P91 agaghị enwe isi ike na-agaghị agafe 250 HB / 265 HV [25HRC].

Ihe ndetu maka ule Bend:
Maka ọkpọkọ nke dayameta ya karịrị NPS 25 yana dayameta ya na nha mgbidi ya bụ 7.0 ma ọ bụ ihe na-erughị ka a ga-edobe n'ule agbagọ kama ịnwale ule.
Enwere ike ịnye ọkpọkọ ndị ọzọ dayameta ya nhata ma ọ bụ karịa NPS 10 maka ule gbagọọ n'ọnọdụ ule ịgbasa n'okpuru nkwado nke onye zụrụ ya.
A ga-ehulata ihe nlele ule na-ehulata na ụlọ okpomọkụ site na 180 na-enweghị mgbawa n'èzí nke akụkụ ahụ ehuru.

Nnwale Hydrostatic

Dayameta dị n'ime ebe mgbagọ ahụ ga-abụ sentimita 25.
A ga-anwale ogologo ọkpọkọ ọ bụla nke Hydro, na nhọrọ nke nrụpụta eletrik na-adịghị emebi emebi, enwere ike iji ule eletrik.

Data teknụzụ
Ngwakọta kemịkalụ:
Ọkwa C Mn P S Si Mo
P1 0.10-0.20 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65
P2 0.10-0.20 0.30-0.61 0.025 0.025 0.10-0.30 0.44-0.65
P5 0.15 kacha 0.30-0.60 0.025 0.025 0.50 kacha 0.45-0.65
P5b 0.15 kacha 0.30-0.60 0.025 0.025 1.00-2.00 0.45-0.65
P5c 0.12 kacha 0.30-0.60 0.025 0.025 0.50 kacha 0.45-0.65
P9 0.15 kacha 0.30-0.60 0.025 0.025 0.25-1.00 0.90-1.10
P11 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 0.44-0.65
P12 0.05-0.15 0.30-0.61 0.025 0.025 0.50 kacha 0.44-0.65
P15 0.05-0.15 0.30-0.60 0.025 0.025 1.15-1.65 0.44-0.65
P21 0.05-0.15 0.30-0.60 0.025 0.025 0.50 kacha 0.80-1.06
P22 0.05-0.15 0.30-0.60 0.025 0.025 0.50 kacha 0.87-1.13
P23 0.04-0.10 0.10-0.60 0.030 kacha 0.010 kacha 0.50 kacha 0.05-1.30

Ihe eji arụ ọrụ
Ngwa igwe P1, P2 P12 P23 P91 P92,P11 P122
Ike ọdụdọ 380 415 510 585 620 620
Mpụta ike 205 220 400 415 440 400
Achọrọ ọgwụgwọ okpomọkụ
Ọkwa Ụdị ọgwụgwọ okpomọkụ
P5, P9, P11, na P22
Na-emezi oke okpomoku F [C] Subcritical Annealing ma ọ bụ iwe iwe
Oke okpomoku F [C]
A335 P5 (b,c) Full ma ọ bụ Isothermal Anneal
Normalize na iwe ***** 1250 [675]
Anneal Subcritical (P5c naanị) ***** 1325-1375 [715 - 745]
A335 P9 Full ma ọ bụ Isothermal Anneal
Normalize na iwe ***** 1250 [675]
A335 P11 Full ma ọ bụ Isothermal Anneal
Normalize na iwe ***** 1200 [650]
A335 P22 Full ma ọ bụ Isothermal Anneal
Normalize na iwe ***** 1250 [675]
A335 P91 Normalize na iwe 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Quench na iwe 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Ọgwụgwọ okpomọkụ A / N+T N+T / Q+T N+T
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