API 5L daraja X52 (L360) PSL1, daraja X52N (L360N) PSL2 Sinadarin abun da ke ciki, tensile kaddarorin da na waje diamita kauri kauri tolerances

API 5Lbututu karfe bututu

Karfe daraja: L360 ko X52 (PSL1)

Abubuwan buƙatun sinadaran:

C: ≤0.28 (mara kyau) ≤0.26 (welded)

Mn: ≤1.40

P: ≤0.030

S: ≤0.030

Ku: 0.50 ko ƙasa da haka

Ni: ≤0.50

C: ≤0.50

Mo: ≤0.15

*V+Nb+Ti: ≤0.15

* Ana iya ƙara abun ciki na manganese da 0.05% akan kowane raguwar 0.01% na abun cikin carbon, har zuwa matsakaicin 1.65%

Abubuwan buƙatun kayan aikin injiniya:

Ƙarfin haɓaka: ≥360Mpa

Ƙarfin ƙarfi: ≥460Mpa

Weld tensile ƙarfi na welded karfe bututu: ≥460Mpa

Tsawaitawa: ≥1940* AXC0.2/4600.9 , inda AXC shine yanki na giciye na samfurin tensile

Haƙuri na waje diamita na karfe bututu:

Diamita na waje D mm Ƙarshen diamita na waje mm
Bututun ƙarfe mara nauyi Weld karfe bututu
< 60.3 -0.8, +0.4
60.3 D ko ƙasa da 168.3 ko ƙasa da haka -0.4, +1.6
168.3 <D≤610 ± 0.005D, amma matsakaicin ± 1.6
610 <D≤1422 +/- 2.0 + /- 1.6
> 1422 Bisa yarjejeniya

 

bango kauri haƙuri of karfe bututu:

Kaurin bango t mm Hakuri mm
Bututun ƙarfe mara nauyi
4.0 ko fiye +0.6, -0.5
4 <t <25 +0.150t, -0.125t
25 ko sama da haka +3.7 ko +0.1t, duk wanda ya fi girma -3.0 ko -0.1t, ɗauka mafi girma
Welded tube
5.0 ko fiye + / - 0.5
5.0 <t <15 Ƙari ko ragi 0.1 t
15 ko fiye +/- 1.5

 

API 5L bututu bututu

Karfe daraja: L360N or X52N(PSL2)

Chemical abun da ke ciki bukatun:

C: ≤0.24

ku: ≤0.45

Mn: ≤1.40

P: ≤0.025

S: ≤0.015

V: ≤0.10

Nb:≤0.05

Shafin: ≤0.04

Ku: ≤0.50

Ni: ≤0.30

C: ≤0.30

Mo: ≤0.15

V+Nb+Ti: ≤0.15

* Ana iya ƙara abun ciki na manganese da 0.05% ga kowane raguwar 0.01% na abun cikin carbon, har zuwa matsakaicin 1.65%.

* Ba a yarda da ƙara boron da gangan ba, ragowar B≤0.001%

Carbon daidai:

CEP cm: ≤0.25

CEIW: ≤0.43

Yi amfani da CE lokacin da abun cikin carbon ya fi 0.12%, kuma amfani da CE IIW lokacin da P cm abun cikin carbon ɗin bai kai ko daidai da 0.12%.

CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B

Idan sakamakon binciken narkewar B ya kasance ƙasa da 0.0005%, to babu buƙatar haɗawa da bincike na kashi B a cikin samfuran samfuran, kuma ana iya ɗaukar abun ciki na B azaman sifili a cikin lissafin carbon daidai CEP cm.

CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15

Makanikai kaddarorin bukatun:

Ƙarfin ƙima: 360-530Mpa

Ƙarfin ƙarfi: 460-760Mpa

Rarraba rabo: ≤0.93 (kawai zartar da D> 323.9mm karfe bututu)

Weld tensile ƙarfi na welded karfe bututu: ≥460Mpa

Ƙananan elongation: = 1940 * AXC0.2 / 4600.9, inda AXC shine yanki na giciye na samfurin tensile.

CVN tasiri gwajin tube

Gwajin zafin jiki 0.C

Ƙayyade diamita na waje na D mm Cikakken girman CVNKarbar kuzariKVJ
508 ko fiye 27
508 zuwa 762 27
762 zuwa 914 40
> 914 zuwa 1219 40
1219 zuwa 1422 40
1422 zuwa 2134 40

Na waje diamita haƙuri of karfe bututu:

Diamita na waje D mm Ƙarshen karkacewar diamita na waje
Bututun ƙarfe mara nauyi Weld karfe bututu
< 60.3 -0.4, +0.8
60.3 D ko ƙasa da 168.3 ko ƙasa da haka -0.4, +1.6
168.3 <D=610 ± 0.005D, amma matsakaicin ± 1.6
610 <D=1422 +/- 2.0 + /- 1.6
> 1422 Bisa yarjejeniya

bango kauri haƙuri of karfe bututu:

Kaurin bango t mm Haƙuri
Bututun ƙarfe mara nauyi
4.0 ko fiye +0.6, -0.5
4 <t <25 +0.150t, -0.125t
25 ko sama da haka +3.7 ko +0.1t, duk wanda ya fi girma

-3.0 ko -0.1t, ɗauka mafi girma

Bututu mai walda
5.0 ko fiye + / - 0.5
5.0 <t <15 Ƙari ko ragi 0.1 t
15 ko fiye +/- 1.5

Lokacin aikawa: Satumba-26-2023