Dubawa

Za mu yi ƙoƙarin kowane mutum don zama na musamman kuma mai kyau, da hanzarta matakanmu don tsayawa cikin matsayi na manyan manyan masana'antu na duniya da manyan kamfanoni don A53 Gr. B Seamless / Welded Carbon Karfe Bututu, Muna maraba da ku don ziyarci masana'antarmu kuma muna fatan kafa dangantakar kasuwanci ta abokantaka tare da abokan ciniki a gida da waje a nan gaba. Duk samfuranmu da mafita sun bi ka'idodin ingancin ƙasa da ƙasa kuma ana yaba su sosai a kasuwanni daban-daban a duniya. Idan kuna sha'awar kowane samfuranmu ko kuna son tattauna tsari na al'ada, ku tuna don jin daɗin tuntuɓar mu. Mun kasance muna sa ido don samar da kyakkyawar alaƙar kasuwanci tare da sabbin abokan ciniki nan gaba kaɗan.

ASTM A53 yana ƙayyadaddun buƙatun don bututun ƙarfe mara nauyi / welded baki da zafi-tsoma galvanized karfe bututu don amfanin gaba ɗaya. Karfe da aka jera a cikin ma'auni dole ne a sarrafa shi a cikin tanderun buɗe ido, oxygen oxygen ko tanderun lantarki, kuma dole ne ya kasance yana da buƙatun sinadarai masu zuwa: carbon, manganese, phosphorus, sulfur, jan karfe, nickel, chromium, molybdenum da vanadium. Bututun ya kamata ya zama maras kyau ko waldi. Ya kamata a gudanar da gwaje-gwajen ƙwanƙwasa, lanƙwasa da ƙwanƙwasa don tabbatar da cewa dole ne ya dace da daidaitattun kaddarorin inji. Za a gudanar da gwajin matsa lamba na hydrostatic, kuma babu yabo ta cikin walda ko jikin bututu. Ya kamata a gudanar da gwaje-gwajen lantarki marasa lalacewa don tabbatar da cewa jimlar adadin bututun dole ne ya dace da ma'auni. Idan ana ganin ya zama dole don tabbatar da cewa bututun ya cika ƙayyadaddun buƙatun, mai siye yana da hakkin aiwatar da duk wani bincike da gwaje-gwaje da aka ƙayyade a cikin wannan ƙayyadaddun.
ASTM A 53 ya dace da tsarin bututun matsa lamba, bututu don bututun bututu da bututun manufa gabaɗaya a zazzabi na digiri 350. Daga cikin su, Gr.B karfe sa ne aka fi amfani da, tare da tensile ƙarfi ≥ 415 (MPa) da kuma samar da ƙarfi ≥ 240 (MPa).

Aikace-aikace

Ana amfani da shi ne musamman don ƙarfi da sassa na matsa lamba, kuma don maƙasudin tururi, ruwa, iskar gas da bututun iska.

Babban Daraja

GR.A, GR.B

Abubuwan Sinadari

A jimlar waɗannan abubuwa biyar kada ta wuce 1.00%.

B Ga kowane 0.01% raguwa a cikin matsakaicin abun ciki na carbon, matsakaicin abun ciki na manganese an yarda ya karu da 0.06%, amma matsakaicin ba zai iya wuce 1.35%.

C Kowane 0.01% raguwa a cikin matsakaicin abun ciki na carbon zai ba da damar matsakaicin abun ciki na manganese ya karu da 0.06%, amma matsakaicin dole ne ya wuce 1.65%.

Kayan Injiniya

A Mafi ƙarancin elongation na tsayin ma'auni 2in. (50mm) za a ƙaddara ta hanyar da ke gaba:

e=625000(1940)A^0.2/U^0.9

e = ƙaramar haɓakar ma'aunin 2in. (50mm), kashi ya zagaye zuwa mafi kusa 0.5%;

A = An ƙididdige shi bisa ga ƙayyadaddun diamita na waje na bututu mai ƙima ko faɗin ƙididdiga na samfurin tensile da ƙayyadaddun kaurin bangonsa, kuma an zagaya shi zuwa yanki na giciye mafi kusa na samfurin tensile na 0.01 in.2 (1 mm2), kuma ana kwatanta shi da 0.75in.2 (500mm2), ko wacce ta fi karami.

U = ƙayyadaddun ƙayyadaddun ƙarfin ƙarfi, psi (MPa).

B Don haɗuwa daban-daban na nau'o'in nau'ikan gwaji daban-daban da ƙayyadaddun ƙaƙƙarfan ƙarfin ƙarfi, ana nuna ƙaramin ƙarar da ake buƙata a cikin Tebur X4.1 ko Tebu X4.2, gwargwadon iyawarsa.

Bukatar Gwaji

Gwajin tensile, gwajin lankwasawa, gwajin hydrostatic, gwajin walƙiya mara lalacewa.

Ƙarfin Ƙarfafawa

Ikon samarwa: Ton 2000 a kowane wata kowane Gradi na ASTM A53/A53M-2012 Karfe

Marufi

A cikin daure da A cikin Akwatin katako mai ƙarfi

Bayarwa

7-14 kwanaki idan a stock, 30-45 kwanaki don samar

Biya

30% depsoit, 70% L/C ko B/L kwafin ko 100% L/C a gani

Cikakken Bayani

Tubu mai tukunyar jirgi

GB/T 8162-2008

Saukewa: ASTM A519-2006

TS EN 10210-1-2006

ASTM A53/A53M-2012

GB9948-2006

GB6479-2013

GB/T 17396-2009