ASME SA333 Gr. 6 Bututun Karfe mara ƙarancin zafin jiki

ASTM A333Gr6 / ASME SA333Gr6 Bututun ƙarfe mai ƙarancin zafin jiki
samfurin bukatun
Daraja: A333Gr.6 / SA333Gr.6
Standard: ASTM A333 / ASME SA333

karfe bututu samar tsari
Ana aiwatar da tsarin samar da bututun ƙarfe tare da la'akari da tsarin fasaha na karfe 20G.

Karfe bututu karkatarwa girma da kuma nauyi sabawa
Matsakaicin diamita na waje: Ƙarƙashin diamita na waje na bututun ƙarfe zai cika buƙatun

Tsawon diamita (mm)	10.3~48.3	> 48.3 ~ 114.3	> 114.3 ~ 219.1	> 219.1 ~ 406.4
Adadin diamita (mm)	-0.8~+0.4	-0.8~+0.8	-0.8~+1.6	-0.8~+2.4

Kaurin bango: -8% ~ + 12%.
Rage nauyi: -3.5% ~ + 10%.
Daidaitaccen tsayin tsayi: bisa ga buƙatun mai amfani.
Madaidaici: ≤1.5mm / m.
Matsayin bayarwa da tsarin maganin zafi na bututun ƙarfe
Ana isar da bututun ƙarfe a cikin yanayin yanayin zafi da aka daidaita.
Tsarin yanayin zafi na al'ada na ƙãre samfurin shine: 900 ° C ~ 930 ° C don 5 ~ 15min, sanyaya iska.

Mechanical Properties na karfe bututu
Tensile Properties
The tensile Properties na karfe bututu za su hadu da bukatun ASTM A333Gr6.
Don bututun ƙarfe tare da kaurin bango mara ƙima ≤ 8mm, samfurin gwajin tensile samfurin gwajin tsiri mai tsayi mai faɗin 12.5mm da nisan ma'auni na 50mm. Don bututun ƙarfe tare da kaurin bango mara ƙima ≥8mm, ana iya amfani da samfurin zagaye tare da tazarar ma'auni na 4D.

Gwajin lallashi
Matsakaicin murkushewa shine 0.07.

Tasirin aiki
Kowane tsari na bututun ƙarfe tare da diamita na waje sama da 21.3mm za a bincika don tasirin tasirin Akv.

Kauri (mm)		3	3.3	4	5	6	6.67	7	7.5	8	9	10
Akv (J)	≥ 5	≥ 6	≥ 7	≥ 8	≥ 9	≥11	≥ 12	≥13	≥ 14	≥16	≥17	≥18

Tasiri zazzabi gwajin
Lokacin da kauri na ƙaramin girman samfurin ya kai ko ya wuce 80% na ainihin kauri na bututun ƙarfe, zafin gwajin shine -45 ° C.
Lokacin da kauri na ƙananan ƙananan samfurin tasiri ya kasance ƙasa da 80% na ainihin kauri na bututun ƙarfe, ƙimar samfurin ya kamata ya zama babba kamar yadda zai yiwu. Gwajin gwajin ya kasance -55 ° C.


Gwajin tauri (kawai lokacin da kwangilar ya buƙaci)
Idan kwangilar ta buƙaci a gwada taurin daidai da ƙa'idar NACE MR-0175, za a ɗauki wani yanki mai tsayi kusan 20-30 mm daga kowane bututun ƙarfe, kuma taurin zai zama ƙasa da 22HRc.

sinadaran abun da ke ciki

Abun ciki	C	Si	Mn	P	S	Cr	Ni	Ku	Mo	V	Al
Abun ciki(%)	0.07~ 0.12	0.20~ 0.35	1.00~ 1.35	≤0.020	≤0.015	≤0.20	≤0.20	≤0.20	≤0.15	≤0.08	0.02~ 0.05

KAYAN KANikanci

GARADI	6
Ƙarfin ɗamara, min,Mpa	415
Ƙarfin bayarwa, min, Mpa	240
Tsawaitawa, min, (s≥8mm)	30%
Tsawaitawa, min, (Standard da'irar)	22%
Tsawaita (s<8mm) Rage kashi daga ainihin kowane raguwa na 8mm na kauri na bango	1.5

Kaurin bango & Juriya

Waje Diamita, inch	Haƙuri, %
1 /8≤OD≤2-1/2	+20.0/-12.5
3≤OD≤18, WT / OD≤5%	+22.5/-12.5
3≤OD≤18, WT / OD> 5%	+15.0/-12.5
OD≥20, WT / OD≤5%	+22.5/-12.5
OD≥20, WT / OD> 5%	+15.0/-12.5