API 5L darajada X52 (L360) PSL1, darajada X52N (L360N) PSL2 Halabuurka kiimikaad, sifooyinka xajinta iyo dulqaadka dhumucda gidaarka dhexroorka dibadda

API 5Ldhuunta birta birta

Heerka birta: L360 ama X52 (PSL1)

Shuruudaha ka kooban kiimikada:

C: ≤0.28(laxaad la'aan) ≤0.26(welded)

Mn: ≤1.40

P: ≤0.030

S: ≤0.030

Cu: 0.50 ama ka yar

Ni: ≤0.50

C: ≤0.50

Mo: ≤0.15

*V+Nb+Ti: ≤0.15

* Waxa ku jira manganese waxa lagu kordhin karaa 0.05% 0.01% kasta oo la dhimo kaarboonka, ilaa ugu badnaan 1.65%

Shuruudaha guryaha makaanikada:

Awoodda wax-soo-saarka: ≥360Mpa

Xoogga xajinta: ≥460Mpa

Quwadda xajinta ee tuubada birta welded: ≥460Mpa

Kordhinta: ≥1940* AXC0.2/4600.9 , halkaas oo AXC ay tahay qaybta isku-tallaabta ee muunadda xajinta

U adkaysiga dhexroorka dibadda ee tuubada birta:

Dhexroorka dibadda D mm Dhamaadka dhexroorka ka baxsan weecan mm
Dhuumaha birta ah ee aan cillad lahayn Dhuumaha birta alxanka leh
< 60.3 -0.8, +0.4
60.3 D ama ka yar 168.3 ama ka yar -0.4, +1.6
168.3 < D≤610 ± 0.005D, laakiin ugu badnaan ± 1.6
610 < D≤1422 + / - 2.0 + / - 1.6
> 1422 Heshiis

 

Darbiga dhumucdiisuna dulqaadasho of bir tuubo:

Dhumucda gidaarka t mm Dulqaad mm
Dhuumaha birta ah ee aan cillad lahayn
4.0 ama ka yar +0.6, -0.5
4 <t < 25 +0.150t, -0.125t
25 ama ka badan +3.7 ama +0.1t, hadba kii ka weyn -3.0 ama -0.1t, qaado ka weyn
Tuubo alxan
5.0 ama ka yar + / - 0.5
5.0 <t <15 Lagu daro ama laga jaray 0.1 t
15 ama ka badan + / - 1.5

 

API 5L tuubo tuubo

Birta darajo: L360N or X52N(PSL2)

Kiimiko halabuurka shuruudaha:

C: ≤0.24

Si: ≤0.45

Mn: ≤1.40

P: ≤0.025

S: ≤0.015

V: ≤0.10

Nb:≤0.05

Ti: ≤0.04

Cu: ≤0.50

Ni: ≤0.30

C: ≤0.30

Mo: ≤0.15

V+Nb+Ti: ≤0.15

* Waxa ku jira manganese waxa lagu kordhin karaa 0.05% 0.01% kasta oo la dhimo kaarboonka, ilaa ugu badnaan 1.65%.

* Lama ogola in si ula kac ah loogu daro boron, haraaga B≤0.001%

Kaarboon u dhiganta:

CEP cm: ≤0.25

CEIIW: ≤0.43

Isticmaal CE marka waxa ku jira kaarboonku ka weyn yahay 0.12%, isticmaal CE IIW marka Pcm kaarboonku ka yar yahay ama la mid yahay 0.12%.

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

Haddii natiijada falanqaynta dhalaalidda ee B ay ka yar tahay 0.0005%, markaa ma jirto baahi loo qabo in lagu daro falanqaynta curiyaha B ee falanqaynta alaabta, iyo waxa ku jira B waxaa loola dhaqmi karaa eber ee xisaabinta kaarboon ee u dhiganta CEP cm.

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

Makaanik guryaha shuruudaha:

Awoodda wax-soo-saarka: 360-530Mpa

Xoog xajin: 460-760Mpa

Saamiga wax-soo-saarka: ≤0.93 (kaliya ayaa lagu dabaqi karaa D> 323.9mm tuubo bir ah)

Quwadda xajinta ee tuubada birta welded: ≥460Mpa

Kordhinta ugu yar: = 1940 * AXC0.2 / 4600.9, halkaas oo AXC ay tahay qaybta isdhaafka ah ee muunada xajinta.

Baaritaanka saameynta CVN ee tuubada

Tijaabi heerkulka 0.C

Sheeg dhexroor ka baxsan D mm Cabbirka buuxa ee CVNTamar la nuugoKVJ
508 ama ka yar 27
> 508 ilaa 762 27
> 762 ilaa 914 40
> 914 ilaa 1219 40
> 1219 ilaa 1422 40
> 1422 ilaa 2134 40

Dibadda dhexroorka dulqaadasho of bir tuubo:

Dhexroorka dibadda D mm Dhammaadka leexashada dhexroorka dibadda
Dhuumaha birta ah ee aan cillad lahayn Dhuumaha birta alxanka leh
< 60.3 -0.4, +0.8
60.3 D ama ka yar 168.3 ama ka yar -0.4, +1.6
168.3 <D=610 ± 0.005D, laakiin ugu badnaan ± 1.6
610 <D=1422 + / - 2.0 + / - 1.6
> 1422 Heshiis

Darbiga dhumucdiisuna dulqaadasho of bir tuubo:

Dhumucda gidaarka t mm Dulqaadka
Dhuumaha birta ah ee aan cillad lahayn
4.0 ama ka yar +0.6, -0.5
4 <t < 25 +0.150t, -0.125t
25 ama ka badan +3.7 ama +0.1t, hadba kan weyn

-3.0 ama -0.1t, qaado ka weyn

Dhuumaha alxanka leh
5.0 ama ka yar + / - 0.5
5.0 <t < 15 Lagu daro ama laga jaray 0.1 t
15 ama ka badan + / - 1.5

Waqtiga boostada: Seb-26-2023