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Taipitopito Hua

Ngā Tohu Hua

Tirohanga Whānui

Paerewa:ASTM A53/A53M-2012

Rōpū Tau: GR.A, GR.B, me ētahi atu

Matotoru: 1 - 100 mm

Diameter o Waho (Porowhita): 10 - 1000 mm

Roa: Roa pumau, roa matapōkere rānei

Āhua Wāhanga: Porowhita

Te Takenga Mai: Haina

Tiwhikete: ISO9001:2008

Konumohe, Kāore rānei: kāore

Te tono: mō ngā wāhanga kaha me te pēhanga, engari mō ngā paipa mamaoa, wai, hau me te hau whānui anō hoki

Maimoatanga Mata: Hei whakaritenga a te kiritaki

Tikanga: Hurihia Wera, Hurihia Matao rānei

Te maimoatanga wera: Te whakamahana/Te whakataurite/Te whakamamae i te ahotea

Paipa Motuhake: Paipa Pakitara Matotoru

Whakamahinga: mō ngā wāhanga kaha me te pēhanga, mō te kaupapa whānui

Whakamātautau: ECT/UT

Tono

Ka whakamahia nuitia mō ngā wāhanga kaha me te pēhanga, me ngā paipa mamaoa, wai, hau me te hau whānui.

Taumata Matua

GR.A, GR.B

Waenga Matū

Tau	Wāhanga %，≤
Tau	C	Mn	P	S	Cu^A	Ni^A	Cr^A	Mo^A	V^A
Momo S (paipa tuitui)
GR.A	0.25^B	0.95	0.05	0.045	0.40	0.40	0.40	0.15	0.08
GR.B	0.30^C	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08
Momo E（Paipa ātete whakarewa）
GR.A	0.25^B	0.95	0.05	0.045	0.40	0.40	0.40	0.15	0.08
GR.B	0.30^C	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08
Momo F（Paipa Whakarewahia ki te Oumu）
A	0.30^B	1.20	0.05	0.045	0.40	0.40	0.40	0.15	0.08

Kaua te tapeke o ēnei huānga e rima e neke atu i te 1.00%.

Mō ia hekenga 0.01% o te ihirangi waro mōrahi, ka whakaaetia kia piki ake te ihirangi konupora mōrahi mā te 0.06%, engari kāore e taea te neke ake i te 1.35%.

Mā ia hekenga 0.01% o te ihirangi waro mōrahi ka piki ake te ihirangi konupora mōrahi mā te 0.06%, engari kaua te mōrahi e neke ake i te 1.65%.

Āhuatanga Mīhini

taonga

GR.A

GR.B

kaha kume, ≥, psi [MPa]

Kaha Tukunga, ≥, psi [MPa]

Te roa o te ine 2 inihi, 50mm rānei

48 000 [330]30 000 [205]A,B

60 000 [415]35 000 [240]A,B

Me whakatau te roanga iti rawa o te roa o te ine 2 inihi (50mm) mā te tātai e whai ake nei:

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

e = te roanga iti rawa o te ine 2 inihi (50mm), ko te ōrau kua whakaawhiwhia ki te 0.5% tata;

A = I tatauhia i runga i te diameter o waho kua tohua o te ngongo ingoa, i te whānui ingoa rānei o te tauira kume me tōna matotoru pakitara kua tohua, ā, i whakaawhiwhia ki te horahanga whakawhiti tata o te tauira kume o te 0.01 in.2 (1 mm2), ā, ka whakaritea ki te 0.75in.2 (500mm2), ko tēhea te mea iti ake.

U = te kaha kume iti rawa kua tohua, psi (MPa).

B Mō ngā huinga rerekē o ngā rahi rerekē o ngā tauira whakamātautau kume me te kaha kume iti rawa kua whakaritea, ka whakaaturia te roa iti rawa e hiahiatia ana i roto i te Ripanga X4.1, i te Ripanga X4.2 rānei, e ai ki tōna whakamahinga.