JIS G3452 Galvanized kavDIMENSIONS, NYIAJ THIAB DIMENSIONAL TOLERANCES ntawm JIS G3452 Pipes

ISO 65 Galvanized Pipes Class A Class B Class C Light Medium heavy 5

JIS G3452 Dimensions, Nyhav thiab Dimensional Tolerances
Nominal Dia		O.D. mm	OD Tolerances		W.T. mm	WT Kev Ua Haujlwm Zoo	Unit Mass excluding Socket kg/m
A	B	O.D. mm	Pipes yuav tsum tau txiav nyob rau hauv taper thread	Lwm cov kav dej	W.T. mm	WT Kev Ua Haujlwm Zoo	Unit Mass excluding Socket kg/m
6	1/8	10.5	± 0.5 hli	± 0.5 hli	2	+ Tsis tau teev tseg -12.50%	0.419
8	1/4	13.8	± 0.5 hli	± 0.5 hli	2.3		0.652
10	3/8	17.3	± 0.5 hli	± 0.5 hli	2.3		0.851
15	1/2	21.7	± 0.5 hli	± 0.5 hli	2.8		1.31
20	3/4	27.2	± 0.5 hli	± 0.5 hli	2.8		1.68
25	1	34	± 0.5 hli	± 0.5 hli	3.2		2.43
32	1 1/4	42.7	± 0.5 hli	± 0.5 hli	3.5		3.38
40	1 1/2	48.6	± 0.5 hli	± 0.5 hli	3.5		3.89
50	2	60.5	± 0.5 hli	±1%	3.8		5.31
65	2 1/2	76.3	± 0.7 hli	±1%	4.2		7.47
80	3	89.1	± 0.8 hli	±1%	4.2		8.79
90	3 1/2	101.6	± 0.8 hli	±1%	4.2		10.1
100	4	114.3	± 0.8 hli	±1%	4.5		12.2
125	5	139.8	± 0.8 hli	±1%	4.5		15
150	6	165.2	± 0.8 hli	± 1.6 hli	5		19.8
175	7	190.7	± 0.9 hli	± 1.6 hli	5.3		24.2
200	8	216.3	± 1 0 hli	±0.8%	5.8		30.1
225	9	241.8	± 1.2 hli	±0.8%	6.2		36
250	10	267.4	± 1.3 hli	±0.8%	6.6		42.4
300	12	318.5	± 1.5 hli	±0.8%	6.9		53
350	14	355.6	–	±0.8%	7.9		67.7
400	16	406.4	–	±0.8%	7.9		77.6
450	18	457.2	–	±0.8%	7.9		87.5
500	20	508	–	±0.8%	7.9		97.4

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DIMENSIONAL TOLERANCES ntawm JIS G3452

JIS G3452 Galvanized Yeeb Nkab Sab Nraud Qhov Siab Zoo

Kev faib tawm	Sab nraud txoj kab uas hla b)	Tolerances rau Sab nraud txoj kab uas hla c)	Siv tau Division
Chav Kawm 1	Hauv qab 50mm	± 0.5 hli	Siv thaum tsis muaj specification. Muaj feem xyuam rau kub-tiav seamless steel raj.
	50mm los yog Tshaj	± 1%
Chav kawm 2	Hauv qab 50mm	± 0.25 hli	Siv thaum muaj qhov tshwj xeeb. Tsis siv rau kub-tiav seamless steel raj.
	50mm los yog Tshaj	± 0.5%
Sau ntawv	a) Rau qhov chaw hauv zos xws li kho qhov chaw yog tias phab ntsa tuab tuaj yeem lees paub tias yog nyob rau hauv lub kam rau ua nyob rau hauv lub rooj hauv qab no, lub sab nraud txoj kab uas hla kam rau ua ntawm lub rooj no yuav tsum tsis txhob siv.
	b) Cov txheej txheem rau kev ntsuas cov kab sab nraud ntawm cov raj siab tshaj 350mm nyob rau hauv sab nraud txoj kab uas hla yuav raug txiav txim los ntawm qhov ntev ntev. Kev sib hloov ntawm sab nraud txoj kab uas hla D thiab lub voj voog ntev l yuav tsum yog los ntawm cov qauv hauv qab no: D = l / π Qhov twg D: sab nraud txoj kab uas hla (mm) l: circumferential ntev (mm) π: 3.1416
	c) Lub tolerances nyob rau sab nraud txoj kab uas hla ntawm qhov kawg ntawm hluav taws xob kuj welded thiab tsis siv neeg arc welded steel hlab tshaj 350mm nyob rau sab nraud txoj kab uas hla yuav tsum yog ± 0.5%.

Yog tias koj muaj lus nug, pls xav tiv tauj peb!
Elva
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Email:elvazhao@lefinsteel.com

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JIS G3452 Galvanized yeeb nkab phab ntsa Thickness kam rau ua

Kev faib tawm	Rau Seamless Steel Tube		Rau Lwm yam tshaj Seamless Steel Tube		Siv tau Division
	Phab ntsa Thickness	Tolerance ntawm phab ntsa Thickness	Phab ntsa Thickness	Tolerance ntawm phab ntsa Thickness
Chav Kawm 1	Hauv qab 4mm	+0.6mm, -0.5mm	Hauv qab 4mm	+0.6mm, -0.5mm	Siv thaum tsis muaj specification. Muaj feem xyuam rau kub-tiav seamless steel raj.
	4mm los yog Over	+15%, -12.5%	4mm los yog Tshaj rau thiab excl. 12 hli	+15%, -12.5%
			12mm los yog Tshaj	+15%, -1.5 hli
Chav kawm 2	Hauv qab 3mm	± 0.3 hli	Hauv qab 3mm	± 0.3 hli	Siv thaum muaj qhov tshwj xeeb. Tsis siv rau kub-tiav seamless steel raj.
	3mm los yog Over	±10%	3mm los yog Tshaj rau thiab excl. 12 hli	±10%
			12mm los yog Tshaj	+10%, -1.2 hli
Sau ntawv	a) Kev kam rau siab ntawm phab ntsa tuab ntawm cov raj siab tshaj 1016.0 hli nyob rau sab nraud txoj kab uas hla tuaj yeem pom zoo los ntawm cov chaw tsim khoom thiab cov neeg yuav khoom.

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