ASTM A234ọkọlọtọ ígwèọkpọkọ ọkpọkọetinyere ya n'ọtụtụ ebe na sistemu pipeline, ọ gụnyere carbon steel na alloy steel.

Kedu ihe bụ ọkpọkọ ígwè?
A na-eji ígwè carbon ígwè ma ọ bụ ọkpọkọ alloy, efere, profaịlụ, na ụdị ụfọdụ nke nwere ike ịrụ ọrụ (Gbagharịa ntụziaka ma ọ bụ ọnụego) na usoro pipeline.Ọtụtụ n'ime ihe ndị a dabara adaba na-agụnye ikpere ụkwụ ígwè (45 ma ọ bụ 90 degrees bend), tee, reducer (concentric or eccentric reducer), cross, caps, nipple, flanges, gasket, studs and etc.

Maka ebumnuche mmepụta ihe, na usoro pipeline na-emekarị ka anyị gbanwee ntụziaka nnyefe;Gbanwee mmiri mmiri (mmanụ na gas, mmiri, slurry) ọnụego eruba;Mepee ma ọ bụ mechie pipeline, wdg. Ya mere, iji mechaa ọrụ ndị a, a ga-etinye ihe ntanetị ígwè.

Kedu ihe bụ ASTM A234 WPB?
ASTM A234 bụ ọkọlọtọ ọkọlọtọ maka akwa ọkpọkọ igwe na-agụnye carbon steel na alloy steel ihe maka ọrụ na-agafeghị oke na oke okpomọkụ.Ọ na-ekpuchi akwa ígwè nke ụdị enweghị nkebi na welded.A na-etinye ihe nrụnye ígwè ígwè na pipeline nrụgide na n'ichepụta arịa nrụgide.Ngwa ndị a dabara adaba nwere igwe egburu egbu, forgings, bars, plates, enweghị nkebi ma ọ bụ HFW (fusion welded) ngwaahịa ọkpọkọ, yana igwe ndochi agbakwunyere.

ASTM A234 na-agụnye arụ ọrụ carbon ígwè na alloy ígwè arụ ọrụ nke enweghị enweghị nkebi na welded ewu kpuchie ọhụrụ nke ASTM B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, na MSS. -SP-97.wdg.

Dị ka anyị maara, ASTM A234 ígwè ọkpọkọ ọkpọkọ na-eji na nrụgide pipụ na n'ime nrụgide arịa eke, maka ọrụ na agafeghị oke na elu okpomọkụ.Ngwa dabara adaba n'ụkpụrụ a nwere igwe egburu egbu, forgings, bars, plates, ngwaahịa tubular enweghị nkebi ma ọ bụ ngwakọta welded nwere igwe ndochi agbakwunyere.
N'ụkpụrụ a, ọ na-ekpuchi nkọwapụta nke elbows, tees, reducers, caps and cross, ọ na-ejikarị njedebe ịgbado ọkụ.

ASTM A234 ígwè ọkpọkọ ihe ndozi akụkụ
Ụkpụrụ: ANSI / ASME B16.9, B16.28, MSS-SP-43.
Oke dayameta dị n'elu: 1/2" ruo 48"
Oke oke: SCH 10, sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, SCH XXS wdg.
Ụdị ihe ndị e ji emepụta ọkpọkọ ígwè arụpụtara n'ụdị adịgboroja, eri, weld weld, na enweghị nkebi.

Ọkwa na ASTM A234:

Nkọwa ASTM A234 nwere ọtụtụ akara ule, dị ka WPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 na ndị ọzọ.
N'ọkọlọtọ ọkwa WPB ndị a bụ ihe a na-ejikarị eme ihe maka ọkpọkọ na oke okpomọkụ.W pụtara weldable, P pụtara nrụgide, B bụ ọkwa b, rụtụ aka na ike mkpụrụ kacha nta.
Isi iyi akụrụngwa nke ASTM A234 WPB steel pipe fitting nwere ike ịbụ site na ọkpọkọ ígwè, dị ka ASTM A106 Gr.B na C. Ọzọkwa si ígwè efere, dị ka ASTM A285 Gr.C, ASTM A516 Gr 70, ASTM A572 wdg.

ASTM A234 WPB ígwè ọkpọkọ dabara kemịkalụ na njiri arụ ọrụ:
1) Ngwa WPB ọkwa ọkwa nke sitere na ọkpọkọ ígwè ma ọ bụ efere kacha C bụ 0.35%.
2) Ịme akwa ọdịnaya Carbon 0.35% kacha yana ọdịnaya Silicon 0.35% kacha, opekempe.
3) Maka mbelata ọ bụla nke 0.01 nke ọdịnaya Carbon, ọdịnaya Manganese na-abawanye 0.06%, ruo na 1.35% kachasị maka Mn.
4) Ọla kọpa, Nickel, Niobium na Molybdenum nchikota ọdịnaya agaghị agafe 1.00%.
5) Niobium + Molybdenum agaghị agafe 0.32%.

Njirimara akụrụngwa nke ASTM A234 WPB ọkpọkọ ọkpọkọ:
Ike tensile 60,000 pis 415 Mpa
Mpụta Ike 35,000 psi 240 Mpa
Ntụle nrụgide: 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS ruo 9000LBS.

ASTM A234 gụnyere ọkpọkọ ọkpọkọ enweghị nkebi na welded:
N'ihi na enweghị nkebi ígwè ọkpọkọ oyiyi akwa na-ezo aka oyiyi akwa akụrụngwa si enweghị nkebi ígwè ọkpọkọ na tubes; Ya mere, welded ígwè ọkpọkọ oyiyi akwa ekpuchi oyiyi akwa si welded ígwè ọkpọkọ.
A ga-achọpụta na,
Nkọwapụta ASTM A234 anaghị ekpuchi ihe nkedo nkedo ma ọ bụ ihe eji arụ ọrụ nke ejiri nkedo rụọ.

Ngwongwo igwe eji eme ihe n'ichepụta usoro nhazi:
Usoro nrụpụta maka ọkpọkọ ọkpọkọ na-agụnye arụrụ arụ na ịkpụzi ọrụ.Dịkwa ka ịpị, ịkụ hamma, ịkpọpu ihe, ịpụpụ, iwe iwe, mkpọgharị, ịgbado, ịgbado ọkụ na igwe.Ma ọ bụ usoro nke ngwakọta nke abụọ ma ọ bụ karịa nke ọrụ ndị a.

N'oge a na-emepụta ọkpọkọ ígwè, a ga-ahụrịrị ihe omume ndị a:
1) ezughị okè na-emerụ ahụ, a gaghị ekepụta ntụpọ ịgbado ọkụ.
2) Mgbe emechara ma ọ bụ na-akpụzi ihe ndị ahụ na ọnọdụ okpomọkụ kwesịrị ekwesị, a ga-eme ka ọ dị jụụ na gburugburu ebe kwesịrị ekwesị na okpomọkụ dị n'okpuru ebe dị oke egwu.Ọ dịghịkwa ntụpọ agaghị eme n'oge usoro jụrụ oyi.Ngwa ngwa jụrụ oyi agaghị abụ ihe karịrị ikuku.
3) A ga-eme nyocha kwesịrị ekwesị mgbe emechara.(Nnwale Hydrostatic, ule siri ike, ule tensile wdg)

Alloy steel pipe akara ule dị na ASTM A234

The alloy steel pipe kwesịrị ekwesị na-mepụtara na alloy ọcha dị ka Chrome, Molybdenum, Nickel alloy, Hastelloy alloy, Monel, Inconel, na wdg Iji nweta a elu mgbali ratings, mma ike, ezi corrosive nguzogide, na ogologo anwụ anwụ.A na-ejikarị ya na pipeline mmanụ na gas, ụlọ ọrụ kemịkalụ, ụlọ ọrụ ọkụ, ebe ike nuklia, na ọnọdụ nkesa.

Alloy ígwè ọkpọkọ oyiyi akwa na-agụnye buttweld oyiyi akwa, alloy ígwè ogologo radius ehulata, alloy ígwè ekpudoro akwa akwa na na.
Alloy steel buttweld dabara adaba ọkọlọtọ ASTM A234, nwere WP1, WP5, WP11, WP12, WP22, WP23 na WP91 akara ule.Ọkwa klaasị na CL1, CL2, CL3.

ASTM A234 Alloy steel pipe Fittings gụnyere alloy steel elbows na ogologo na mkpụmkpụ radius, alloy steel eccentric & concentric reducer, alloy steel caps & crosses, alloy steel couplings, alloy steel tees, alloy steel nipples, alloy steel caps and etc more forms.Ọ nwere ụdị enweghị nkebi, welded na ekepụtara.
Maka akwa akwa akwa akwa, ọ na-agbaso ọkọlọtọ ASTM A182 na-ezo aka na flanges ọkpọkọ.Ọkọlọtọ ihe dị na ASTM A182 F1, F5, F9, F11 Klas 1, F12 Klas 1, F22 Klas 1 ETC.

Ngwakọta kemịkalụ

Chọrọ tensile