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JIS G 3461 STB340 Carbon Steel ji esi mmiri ọkụ

Nkọwa dị mkpirikpi:

Ụkpụrụ ogbugbu: JIS G 3461;
Ọkwa: STB340;
Ihe: carbon ígwè ọkpọkọ;

nha: 15.9-139.8mm;
Mgbidi mgbidi: 1.2-12.5mm;
Usoro mmepụta ihe: na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ ma ọ bụ oyi na-emecha;
Ngwa ndị isi: ndị na-ekpo ọkụ na ndị na-ekpo ọkụ maka ngwa ngwa;

Nkọwa ngwaahịa

Mkpado ngwaahịa

JIS G 3461 STB340 Okwu Mmalite

JIS G 3461 ígwè ọkpọkọbụ enweghị nkebi (SMLS) ma ọ bụ electric-eguzogide-welded (ERW) carbon ígwè ọkpọkọ, tumadi na-eji na boilers na okpomọkụ Exchangers maka ngwa dị ka aghọta okpomọkụ mgbanwe n'etiti n'ime na n'èzí tube.

STB340bụ ọkwa ọkpọkọ carbon steel na ọkọlọtọ JIS G 3461.O nwere opekempe ike ntanye nke 340 MPa yana ike mkpụrụ kacha nta nke 175 MPa.

Ọ bụ ihe a na-ahọrọ maka ọtụtụ ngwa ụlọ ọrụ mmepụta ihe n'ihi ike ya dị elu, nkwụsi ike nke okpomọkụ dị mma, mgbanwe, nkwụsị nke corrosion ikwu, ọnụ ahịa na-arụ ọrụ, na nhazi nhazi.

JIS G 3461 Ọkwa ọkwa

 

JIS G 3461nwere akara ule atọ.STB340, STB410, STB510.

STB340: Obere ntakiri ike: 340 MPa;Ike mkpụrụ kacha nta: 175 MPa.
STB410: Ike ntanye kacha nta: 410 MPa;Ike Mpụta kacha nta: 255 MPa.
STB510:Ike ntanye kacha nta: 510 MPa;Ike Mpụta kacha nta: 295 MPa.

N'ezie, ọ bụghị ihe siri ike ịchọpụta na ọkwa JIS G 3461 bụ nkewa dị ka ike kachasị nta nke ọkpọ ígwè.

Ka ọkwa nke ihe ahụ na-abawanye, nkwụsị ya na ike na-emepụta na-abawanye otú ahụ, na-ekwe ka ihe ahụ na-eguzogide ibu dị elu na nrụgide maka gburugburu ọrụ na-achọsi ike.

JIS G 3461 Oke oke

N'èzí dayameta nke 15.9-139.8mm.

Ngwa n'ime igwe ọkụ na ndị na-ekpo ọkụ anaghị achọkarị dayameta tube buru ibu.Obere tube dayameta na-abawanye arụmọrụ ọkụ n'ihi na mpaghara elu na oke olu maka nnyefe ọkụ dị elu.Nke a na-enyere aka ịnyefe ọkụ ọkụ ngwa ngwa na nke ọma.

Ngwaọrụ

 

A ga-arụpụta tubes site nagburu ígwè.

Usoro nrụpụta nke JIS G 3461

 

Nchikota nke ụzọ nrụpụta ọkpọkọ na ụzọ imecha.

Usoro nrụpụta nke JIS G 3461

N'ụzọ zuru ezu, enwere ike ịkewa ha dịka ndị a:

Ọkpụkpụ nchara na-ekpo ọkụ mechachara: SH

Oyi mezuru tube nchara enweghị nkebi: SC

Dị ka ọkụ eletrik na-eguzogide welded ígwè tube: EG

Igwe ọkụ na-ekpo ọkụ mechapụrụ ọkụ eletrik welded ígwè tube: EH

Oyi mechapụrụ ọkụ eletrik na-eguzogide welded ígwè tube: EC

Nke a bụ usoro mmepụta nke Hot-mechara enweghị nkebi.

enweghị nkebi-steel-pipe-usoro

N'ihi na enweghị nkebi n'ichepụta usoro, ọ nwere ike roughly kewara n'ime enweghị nkebi ígwè ọkpọkọ na mpụga dayameta nke ihe karịrị 30mm na-eji ọkụ imecha mmepụta, na 30mm na-eji oyi imecha mmepụta.

Ọgwụgwọ okpomọkụ nke JIS G 3461 STB340

Ọgwụgwọ okpomọkụ nke JIS G STB340

Ngwakọta kemịkalụ nke JIS G 3461 STB340

 

Usoro nyocha nke okpomọkụ ga-adaba n'ụkpụrụ dị na JIS G 0320.

Enwere ike ịgbakwunye ihe ndị na-emepụta ihe na-abụghị ndị ahụ iji nweta ihe ndị a kapịrị ọnụ.

Mgbe a na-enyocha ngwaahịa ahụ, ụkpụrụ ntụgharị nke ihe mejupụtara kemịkalụ nke ọkpọkọ ahụ ga-ezute ihe achọrọ nke Tebụl 3 nke JIS G 0321 maka ọkpọkọ igwe anaghị agba nchara na Tebụl 2 nke JIS G 0321 maka ọkpọkọ nguzogide welded.

Akara ọkwa C (Carbon) Si (Silicon) Mn (Manganese) P (Phosphorus) S (Slfur)
max max max max
STB340 0.18 0.35 0.30-0.60 0.35 0.35
Onye zụrụ ya nwere ike ịkọwa ego Si ga-adị na nso 0.10% ruo 0.35%.

Emebere kemịkalụ kemịkalụ nke STB340 iji hụ na akụrụngwa akụrụngwa zuru oke na igwe eji arụ ọrụ ebe ọ na-eme ihe dabara adaba maka ịgbado ọkụ na ngwa na gburugburu oke okpomọkụ.

Ngwongwo tensile nke JIS G 3461 STB340

Akara ọkwa Ike ntanye a Ọnụ ego ma ọ bụ mgbakasị ihe akaebe Ogologo oge min, %
Dayameta dị n'èzí
10mm ≥10mm ~ 20mm ≥20mm
N/mm² (MPA) N/mm² (MPA) Mpempe ule
Nke 11 Nke 11 Nọmba 11/ No.12
min min Ntuziaka ule tensile
Yiri na tube axis Yiri na tube axis Yiri na tube axis
STB340 340 175 27 30 35

Rịba ama: naanị maka ọkpọkọ ndị na-ekpo ọkụ ọkụ, onye zụrụ ya nwere ike, ebe ọ dị mkpa, kọwaa uru kachasị ike nke ike nkwụsị.N'okwu a, ọnụọgụ ike kachasị elu ga-abụ uru a nwetara site na ịgbakwunye 120 N/mm² na uru dị na tebụl a.

Mgbe a na-eme ule nkwụsịtụ na mpempe ule nke 12 maka tube n'okpuru 8 mm na mgbidi mgbidi.

Akara ọkwa Ejiri mpempe ule Ogologo oge
min,%
Ọkpụrụkpụ mgbidi
1 ≤2 mm ≤2 ≤3 mm ≤3≤4mm ≤4≤5mm 5≤6 mm 6≤7 mm 7 8 mm
STB340 Nke 12 26 28 29 30 32 34 35

A na-agbakọ ụkpụrụ elongation dị na tebụl a site na iwepụ 1.5% site na uru elongation enyere na Tebụl 4 maka mbelata 1 mm ọ bụla na ọkpụrụkpụ mgbidi tube site na 8 mm, yana site na ịgbakọ nsonaazụ ya na ọnụọgụ dị ka Iwu A nke JIS Z 8401 si dị.

Ule isi ike

 

Usoro ule ga-adị na JIS Z 2245. A ga-atụle ike nke mpempe ule ahụ n'elu akụkụ ya ma ọ bụ n'ime ime ya na ọnọdụ atọ kwa ibe.

Akara ọkwa Rockwell hardness (pụtara uru nke ọnọdụ atọ)
HRBW
STB340 77 max.
STB410 79 max.
STB510 92 max.

Agaghị eme ule a na tubes nke ọkpụrụkpụ mgbidi 2 mm ma ọ bụ n'okpuru.Maka nkwụghachi ọkụ eletrik welded tubes ígwè, a ga-eme ule ahụ na akụkụ nke ọzọ karịa weld ma ọ bụ mpaghara okpomọkụ na-emetụta.

Nguzogide ire ụtọ

Ọ naghị emetụta tubes ígwè enweghị nkebi.

Usoro nnwale Debe ihe nlere anya n'ime igwe ma mebie ya ruo mgbe ebe dị anya n'etiti ikpo okwu abụọ ruru uru a kapịrị ọnụ H. Mgbe ahụ lelee ihe atụ maka mgbawa.

Mgbe ị na-anwale ọkpọkọ welded dị oke egwu, ahịrị dị n'etiti weld na etiti ọkpọkọ ahụ na-adaba na ntụzịaka mkpakọ.

H=(1+e)t/(e+t/D)

H: anya n'etiti platen (mm)

t: ọkpụrụkpụ mgbidi tube (mm)

D: dayameta n'èzí tube (mm)

e:na-agbanwe agbanwe maka ọkwa ọ bụla nke tube.STB340: 0.09;STB410: 0.08;STB510: 0.07.

Ngwongwo na-ekpo ọkụ

 

Ọ naghị emetụta tubes ígwè enweghị nkebi.

A na-agbanye otu njedebe nke ihe atụ ahụ na ụlọ okpomọkụ (5 ° C ruo 35 Celsius) na ngwá ọrụ conical na akụkụ 60 Celsius ruo mgbe a na-eme ka dayameta dị n'èzí gbasaa site na 1.2 ma nyochaa maka mgbawa.

Ihe a chọrọ na-emetụtakwa tubes nwere dayameta dị n'èzí karịa 101.6 mm.

Resistance Flattening Resistance

Enwere ike ịhapụ ule mweghachi azụ mgbe ị na-eme ule ọkụ.

Bee ihe nlele nke 100 mm n'ogologo site na otu njedebe nke ọkpọkọ ma belata ihe nlele ahụ na ọkara 90 Celsius site na eriri weld n'akụkụ abụọ nke gburugburu, na-ewere ọkara nke nwere weld dị ka ihe nlele.

N'ebe okpomọkụ dị n'ime ụlọ (5 Celsius C ruo 35 Celsius) gbanye ihe atụ ahụ n'ime efere na weld dị n'elu wee lelee ihe atụ maka mgbawa na weld.

Nnwale hydraulic ma ọ bụ Nnwale na-adịghị emebi emebi

Ọkpụkpọ ígwè ọ bụla kwesịrị ka a na-anwale ya na hydrostatically ma ọ bụ na-adịghị emebi emebiiji hụ na ịdị mma na nchekwa nke ọkpọkọ na izute ụkpụrụ eji eme ihe.

Ule hydraulic

Jide n'ime ọkpọkọ na opekempe ma ọ bụ elu elu P (P max 10 MPa) ma ọ dịkarịa ala 5 sekọnd, wee chọpụta na ọkpọkọ nwere ike iguzogide nrụgide na-enweghị nkwụsị.

P=2st/D

PNnwale ule (MPa)

t: mgbidi ọkpụrụkpụ nke tube (mm)

D: n'èzí dayameta nke tube (mm)

s: 60 % nke ọnụ ahịa kacha nta akọwapụtara nke isi mkpụrụ ma ọ bụ nrụgide akaebe.

Nnwale na-adịghị emebi emebi

A ga-eme nnwale na-adịghị emebi emebi nke tubes ígwèNnwale ultrasonic ma ọ bụ eddy ugbu a.

Makaultrasonicnjirimara nyocha, mgbama sitere na nlele ntụaka nwere ọkọlọtọ ntụaka nke klaasị UD dịka akọwapụtara na yaJIS G 0582a ga-ewere dị ka ọkwa mkpu ma ga-enwe akara mgbaama hà nhata ma ọ bụ karịa ọkwa mkpu.

Ọkọlọtọ nchọpụta mmetụta maka ndịeddy ugbuaule ga-abụ udi EU, EV, EW, ma ọ bụ EX akọwapụtara naJIS G 0583, na a gaghị enwe akara ngosi kwekọrọ ma ọ bụ karịa akara ngosi sitere na ihe nrịbama nke nwere ụkpụrụ ntụnye aka nke ụdị a kwuru.

JIS G 3461 nnabata nke n'èzí dayameta

 
JIS G 3461 nnabata na dayameta mpụga

JIS G 3461 Nkwenye nke ịdị arọ na mgbidi mgbidi

JIS G 3461 nnabata na ọkpụrụkpụ mgbidi na eccentricity

JIS G 3461 ndidi nkeOgologo

Nkwenye na ogologo

Chart ibu arọnke JIS G 3461

 
JIS G 3461 Pipe arọ Chart

Maka ihe ndị ọzọCharts Ọdụdọ Pipe na Usoro Ọkụn'ime ọkọlọtọ, ị nwere ike pịa site.

Akara Tube

 

Were usoro kwesịrị ekwesị maka ịkpọ ozi ndị a.

a) Akara ọkwa;

b) Akara maka usoro mmepụta ihe;

c) Akụkụ: n'èzí dayameta na mgbidi mgbidi;

d) Aha onye nrụpụta ma ọ bụ akara njirimara.

Mgbe akara na tube ọ bụla siri ike n'ihi obere dayameta dị n'èzí ma ọ bụ mgbe onye zụrụ ya rịọrọ ya, enwere ike ịnye akara ahụ na ngwugwu tubes ọ bụla site na ụzọ dabara adaba.

Ngwa JIS G 3461 STB340

 

A na-ejikarị STB340 na-emepụta ọkpọkọ mmiri na ọkpọkọ ọkụ maka ụlọ ọrụ mmepụta ihe dị iche iche, karịsịa na gburugburu ebe a chọrọ iguzogide oke okpomọkụ na nrụgide.

N'ihi ezigbo ihe na-eduzi okpomọkụ, ọ dịkwa mma maka ịmepụta ọkpọkọ maka ndị na-ekpo ọkụ ọkụ, na-enyere aka ịnyefe okpomọkụ nke ọma n'etiti mgbasa ozi dị iche iche.

A pụkwara iji ya na-ebufe mmiri ọkụ dị elu ma ọ bụ nke dị elu, dị ka uzuoku ma ọ bụ mmiri ọkụ, a na-ejikwa kemịkal, ọkụ eletrik na ụlọ ọrụ mmepụta ihe.

Ihe dakọtara JIS G 3461 STB340

 

ASTM A106 Ọkwa A
DIN 17175 St35.8
DIN 1629 St37.0
BS 3059-1 Ọkwa 320
EN 10216-1 P235GH
GB 3087 20#
GB 5310 20G

Ọ bụ ezie na ihe ndị a nwere ike ịdị ka ihe mejupụtara kemịkalụ na ihe ndị bụ isi, usoro ọgwụgwọ okpomọkụ kpọmkwem na nhazi nwere ike imetụta njirimara nke ngwaahịa ikpeazụ.
Ya mere, ntụnyere zuru ezu na ule kwesịrị ekwesị kwesịrị ime mgbe ị na-ahọrọ ihe ndị kwekọrọ maka ngwa bara uru.

Uru Anyị

 

Ebe ọ bụ na e guzobere ya na 2014, Botop Steel aghọwo onye na-ebute ụzọ na-ebufe ọkpọkọ carbon ígwè na Northern China, mara maka ọrụ magburu onwe ya, ngwaahịa dị elu, na ngwọta zuru oke.Ụlọ ọrụ ahụ na-enye ụdị ọkpọkọ carbon carbon dị iche iche na ngwaahịa ndị metụtara ya, gụnyere enweghị nkebi, ERW, LSAW, na SSAW ọkpọkọ ígwè, yana nchịkọta zuru ezu nke ọkpọkọ na flanges.

Ngwaahịa ya ọpụrụiche gụnyekwara alloys dị elu na igwe anaghị agba nchara austenitic, ahaziri iji gboo ihe achọrọ nke ọrụ pipeline dị iche iche.


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