JIS G3445 STKM11A STKM12B STKM13B Zithunzi Zopanda Zitsulo Zopanda Msoko

JIS G3445 STKM11A STKM12B STKM13B Chubu Chachitsulo Chopanda Msoko

JIS G3445 Carbon Seamless Steel Tubes STKM11A 12A 13B machubu

Zokhazikika:

JIS G3445 Carbon Seamless zitsulo machubu

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Mawonekedwe

Gawo lazinthu:

STKM 11A 12A 12B 12C 13A 13B 13C 14A 14B 14C 15A 15C etc.

Chithandizo cha Pamwamba:

1. Wakuda

2.Black Painted (chophimba cha varnish)

3.Magalati

4.Kupaka mafuta

5.Malinga ndi makasitomala.

Machubu a JIS G3445 Precision zitsulo amagwiritsidwa ntchito makamaka pamagalimoto ndi makina olondola pamagalimoto ndi silinda.kugwiritsa ntchito kuthamanga, komanso kunyamula nthunzi, madzi, mizere yamapaipi a gasi.

Chemical zikuchokera

Gulu		Kusankhidwa	Gawo (%)
			C	Si	Mn	P	S	Nb kapena V
Gulu 11	A	Mtengo wa STKM 11A	0.12 max.	0.35 max.	0.60 max.	0.040 kukula.	0.040 kukula.	-
Gulu 12	A	Mtengo wa STKM12A	0.20 max.	0.35 max.	0.6 max.	0.04 max.	0.04 max.
	B	Chithunzi cha STKM12B
	C	Mtengo wa STKM 12C
Gulu 13	A	Chithunzi cha STKM13A	0.25 max.	0.35 max.	0.30-0.90	0.040 kukula.	0.040 kukula.	-
	B	Chithunzi cha STKM13B
	C	Mtengo wa STKM 13C
Gulu 14	A	Chithunzi cha STKM14A	0.30 max.	0.35 max.	0.30-1.00	0.040 kukula.	0.040 kukula.	-
	B	Chithunzi cha STKM14B
	C	Mtengo wa STKM 14C
Gulu 15	A	Chithunzi cha STKM15A	0.25-0.35	0.35 max.	0.30-1.00	0.040 kukula.	0.040 kukula.	-
	C	Mtengo wa STKM 15C
Gulu 16	A	Mtengo wa STKM 16A	0.35-0.45	0.40 max.	0.40-1.00	0.040 kukula.	0.040 kukula.	-
	C	Mtengo wa STKM 16C
Gulu 17	A	Mtengo wa STKM 17A	0.45 ~ 0.55	0.40 max.	0.40-1.00	0.040 kukula.	0.040 kukula.	-
	C	Mtengo wa STKM 17C
Gulu 18	A	Chithunzi cha STKM18A	0.18 max.	0.55 max.	1.50 max.	0.040 kukula.	0.040 kukula.	-
	B	Chithunzi cha STKM18B
	C	Mtengo wa STKM 18C
Gulu 19	A	Mtengo wa STKM 19A	0.25 max.	0.55 max.	1.50 max.	0.040 kukula.	0.040 kukula.	-
	C	Mtengo wa STKM 19C
Gulu 20	A	Chithunzi cha STKM20A	0.25 max.	0.55 max.	1.60 max.	0.040 kukula.	0.040 kukula.	0.15 max

Zimango katundu

Kalasi yachitsulo		Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
Dzina	Ayi.	ReH (mphindi)	Rm (mphindi)	A(mphindi)
Mtengo wa STKM 11A		_	290	35
Mtengo wa STKM12A		175	340	35
Chithunzi cha STKM12B		275	390	25
Mtengo wa STKM 12C		355	4700	20
Chithunzi cha STKM13A		215	370	30
Chithunzi cha STKM11B		305	440	20
Chithunzi cha STKM11C		380	510	15

Kulekerera

SIZE	Kulekerera kololedwa		Kulekerera Kwapadera
SIZE	OD	WT	OD	WT
4 mm-20 mm	± 0.25mm	<3mm± 0.3mm; ≥3 mm ±10%	± 0.05mm	± 0.05mm
20mm-30mm	± 0.25mm		± 0.08mm	± 0.08mm
31mm-40mm	± 0.25mm		± 0.10mm	± 0.08mm
41mm-49mm	± 0.25mm		± 0.15mm	± 0.15mm
50mm-80mm	± 0.5%		± 0.20mm	± 0.20mm
81mm-120mm	± 0.5%		± 0.30mm	± 0.30mm

Mkhalidwe wotumizira

Kusankhidwa	Chizindikiro	Kufotokozera
Kuzizira komaliza (kolimba)	BK(+C)	Machubu salandira chithandizo cha kutentha potsatira kuzizira komaliza ndipo, motero, amakhala ndi kukana kwambiri kupindika
Zozizira zomaliza (zofewa)	BKW	Chithandizo chomaliza cha kutentha chimatsatiridwa ndi kujambula kozizira komwe kumaphatikizapo kusinthika kochepa.Kukonzekera koyenera kumapangitsa kuti pakhale kuzizira pang'ono (mwachitsanzo kupinda, kukulitsa)
Zozizira zomaliza (zofewa)	(+LC)
Kuzizira komaliza komanso kumachepetsa nkhawa	BKS(+SR)	Kutentha mankhwala ntchito kutsatira otsiriza ozizira kupanga ndondomeko.Kutengera ndi momwe zinthu ziliri zogwirira ntchito, kuwonjezereka kwa zovuta zotsalira zomwe zimakhudzidwa kumathandizira kupanga ndi kukonza pamlingo wina.
Annealed	GBK(+A)	Njira yomaliza yopanga Cold imatsatiridwa ndikumangirira mumlengalenga wolamulidwa.
Zokhazikika	NBK(+N)	Kupanga kozizira komaliza kumatsatiridwa ndi annealing pamwamba pa malo osinthika apamwamba mumlengalenga wolamulidwa.

Machubu achitsulo olondola kwambiri mu Stock
OD	Makulidwe (mm)
mm	Makulidwe (mm)
4	4*1
6	6*1	6 * 1.5	6*2 pa
8	8*1	8*1.5	8*2 pa
10	10*1	10 * 1.5	10*2	10 * 2.5
12	12*1	12 * 1.5	12*2	12 * 2.5	12*3
14	14*1	14 * 1.5	14*2	14 * 2.5	14*3
15	15*1	15 * 1.5	15*2	15 * 2.5	15*3	15 * 3.5
16	16*1	16 * 1.5	16*2	16 * 2.5	16*3	16 * 3.5	16*4	16 * 4.5
18	18*1	18 * 1.5	18*2	18 * 2.5	18*3	18 * 3.5	18*4	18 * 4.5
20	20*1	20 * 1.5	20*2	20 * 2.5	20*3	20 * 3.5	20*4	20 * 4.5	20*5
22	22*1	22 * 1.5	22*2	22 * 2.5	22*3	22 * 3.5	22*4	22 * 4.5	22*5
25	25*1	25 * 1.5	25*2	25 * 2.5	25*3	25 * 3.5	25*4	25 * 4.5	25*5
28	28*1	28 * 1.5	28*2	28 * 2.5	28*3	28 * 3.5	28*4	28 * 4.5	28*5
30	30*1	30 * 1.5	30*2	30 * 2.5	30*3	30 * 3.5	30*4	30 * 4.5	30*5	30*6
32		32 * 1.5	32*2	32 * 2.5	32*3	32 * 3.5	32*4	32 * 4.5	32*5	32 * 6
34		34 * 1.5	34*2	34 * 2.5	34*3	34 * 3.5	34*4	34 * 4.5	34*5	34*6
35		35 * 1.5	35*2	35 * 2.5	35*3	35 * 3.5	35*4	35 * 4.5	35*5	35*6
38			38*2	38 * 2.5	38*3	38 * 3.5	38*4	38 * 4.5	38*5	38*6
40			40*2	40 * 2.5	40*3	40 * 3.5	40*4	40 * 4.5	40*5	40*6
42			42*2	42 * 2.5	42*3	42 * 3.5	42*4	42 * 4.5	42*5	42*6 pa
45			45*2	45 * 2.5	45*3	45 * 3.5	45*4	45 * 4.5	45*5	45*6
46			46*2	46 * 2.5	46*3	46 * 3.5	46*4	46 * 4.5	46*5	46*6 pa
48			48*2	48 * 2.5	48*3	48 * 3.5	48*4	48 * 4.5	48*5	48*6
50			50*2	50 * 2.5	50*3	50 * 3.5	50*4	50 * 4.5	50*5	50*6
54				54 * 2.5	54*3	54 * 3.5	54*4	54 * 4.5	54*5	54*6
60				60 * 2.5	60*3	60 * 3.5	60*4	60 * 4.5	60*5	60*6
65					65*3	65 * 3.5	65*4	65 * 4.5	65*5	65*6 pa
75						75 * 3.5	75*4	75 * 4.5	75*5	75*6 pa
76							76*4	76 * 4.5	76*5	76*6 pa
89										89*6 pa
Zindikirani: Titha kupanga makulidwe ena monga momwe mumafunira.Chithandizo cha pamwamba: Kuwala, Galvanized, Phosphate etc.

Kupanga Njira

Ubwino wake

Limbikitsani kuwunika kwazinthu pagawo lililonse lopanga, lokhala ndi zida zonse zoyezera: kuyezetsa kosawononga kwa eddy, makina oyesa kukana kuthamanga kwamphamvu, makina oyesera amtundu wapadziko lonse lapansi, makina oyesera amoto opindika, kusanthula ukhondo, kusanthula zinthu zachitsulo, ndi zina zambiri. Kumanani ndi zinthu zamakina azinthu, kuyesa magwiridwe antchito, perekani chitsimikizo champhamvu pazinthu zoyenerera.