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ASTM A312 TP304N Paịpụ ígwè anaghị agba nchara nke ejiri welded: Ike nrụpụta na nkọwapụta ngwaahịa Foto a na-egosipụta
  • ASTM A312 TP304N Paịpụ ígwè anaghị agba nchara nke ejiri welded: Ike nrụpụta na nkọwapụta ngwaahịa

ASTM A312 TP304N Paịpụ ígwè anaghị agba nchara nke ejiri welded: Ike nrụpụta na nkọwapụta ngwaahịa

Nkọwa Dị Mkpirikpi:

 

Womic Steel na-enye paịpụ ígwè anaghị agba nchara nke ASTM A312 TP304N, ígwè anaghị agba nchara nke 304 nke nitrogen siri ike nke nwere ike ịmịpụta ihe dị elu (275 MPa) karịa ọkọlọtọ 304 ma na-ejigide iguzogide nchara dị mma, ike ịrụ ọrụ, na ike ịgbado ọkụ. Ntinye nitrogen na-eme ka ike na iguzogide nkụchi dịkwuo mma n'enweghị nkwalite ka ọ bụrụ ígwè anaghị agba nchara abụọ.

Emepụtara ya site na usoro ERW na EFW, yana mkpụcha mmiri na mkpụcha a pịrị apị. Dị na OD 6.35mm–1219mm (1/4″–48″), ọkpụrụkpụ mgbidi 0.5mm–50mm, ogologo ya ruru mita 24. Enyere ya asambodo igwe, nnwale hydrostatic, nyocha UT, na mmecha njedebe ahaziri ahazi.

Ngwa:
Ụgbọ mmiri nrụgide, nhazi kemịkalụ, ikpo okwu ndị dị n'ụsọ oké osimiri, ihe mgbanwe okpomọkụ, sistemu hydraulic, ọgwụgwọ mmiri, igwe akwụkwọ, na ọkpọkọ ụlọ ọrụ mmepụta ihe nwere nrụgide dị elu.

Ọkọlọtọ na ọkwa:
ASTM A312 TP304N / ASME SA312 / EN 10217-7 1.4315 (AISI 304N)


Nkọwapụta Ngwaahịa

Nkọwa Ngwaahịa

Akara Ngwaahịa

1. Womic Steel: Ike Mmepụta na Ike Ụlọ Ọrụ

Womic Steel Group bụ ụlọ ọrụ mmepụta ihe na mbupụ ngwaahịa n'ụwa niile nke nwere ihe karịrị afọ 20 nke ahụmịhe n'ịmepụta ngwaahịa tubular ígwè anaghị agba nchara. Ụlọ ọrụ mmepụta paịpụ TP304N pụrụ iche anyị na-eji ọtụtụ teknụzụ ịgbado ọkụ dị elu yana ntinye okpomọkụ a na-achịkwa iji nọgide na-enwe ọdịnaya nitrogen na ígwè ịgbado ọkụ:

  • ERW (Ịgbado Ọkụ Eletriki):Maka dayameta site na 6.35mm ruo 610mm (1/4″ – 24″), ọkpụrụkpụ mgbidi site na 0.5mm ruo 12.7mm. Ịgbado ọkụ ugboro ugboro dị elu yana paramita kachasị mma iji jide nitrogen. Ọ dị mma maka paịpụ TP304N obere ruo ọkara dayameta maka nrụgide na ojiji nhazi.
  • Ahịrị EFW (Ịgbado ọkụ eletrik):Maka dayameta site na 219mm ruo 1219mm (8″ – 48″), ọkpụrụkpụ mgbidi site na 4.0mm ruo 50mm. TIG (GTAW) mgbọrọgwụ ngafe nwere SAW jump pass, site na iji ígwè jump set (ER304N ma ọ bụ ER308 nwere nitrogen).
  • Ahịrị LSAW / SAWL maka igwe anaghị agba nchara:Maka dayameta site na 406mm ruo 1524mm (16″ – 60″), ọkpụrụkpụ mgbidi ruo 50mm. Njikọta arc nke efere TP304N a kpụkọrọ akpụkọ.

A na-eme ka paịpụ TP304N niile a na-agbakọta ọnụ (ọgwụgwọ okpomọkụ) na 1040-1120°C, wee jiri mmiri mee ka nitrogen dị na mmiri siri ike ma weghachite ike nchara, wee jiri ya mee ka ọ ghara ịdị mma.

Asambodo Ogo na Nrubeisi Iwu:

  • ISO 9001: 2015 Akwadoro
  • PED 2014/68/EU (CE Mark) maka akụrụngwa nrụgide
  • EN 10204 3.2 Asambodo nwere nkwenye nke ndị ọzọ (TÜV, BV, SGS, LR)
  • Nnyocha nke Ndị Ọzọ (TPI) nke SGS, BV, ABS, DNV, TÜV kwadoro
  • Koodu ụgbọ mmiri ASME na nke nrụgide (Nkebi nke VIII, Nkebi nke 1) ma ọ bụrụ na achọrọ ya

Womic Steel na-enye ọkpọkọ TP304N nke ejiri ígwè rụọ ọrụ na mba 40 n'ofe ụlọ ọrụ mmepụta ihe, ụlọ ọrụ nhazi, na kemịkalụ.

Mgbanwe Mmepụta:

  • ERW: 6.35–610mm OD × 0.5–12.7mm WT × ≤ 12m
  • EFW: 219–1219mm OD × 4.0–50mm WT × ≤ 12m (ogologo oge karịa ma ọ bụrụ na a rịọ ya)
  • LSAW: 406–1524mm OD × 6.0–50mm WT × ≤ 18m
  • Nhọrọ imecha: A na-ete ya na nke a na-apịpịa, a na-ete ya nke ọma, a na-ete ya nke ọma (180# ruo 320#)

2. ASTM A312 TP304N: Ihe mejupụtara ihe na njirimara arụmọrụ

ASTM A312 TP304N bụ ụdị ígwè anaghị agba nchara 304 nke e ji nitrogen mee nke ọma. Nitrogen (0.10-0.16%) na-eme ka ngwọta siri ike sie ike, na-eme ka ike mmepụta dịkwuo elu site na ihe dị ka 35% ebe ọ na-ejigide ike dị mma, ike, na iguzogide nchara. Nke a na-enye ohere ka akụkụ mgbidi dị gịrịgịrị maka otu ọkwa nrụgide ahụ, na-ebelata ibu na ọnụ ahịa.

Ihe mejupụtara kemịkalụ (Nyocha Ladle, pasent site na oke):

Ihe TP304N (ASTM A312) TP304 (maka ntụnyere)
C ≤ 0.08 ≤ 0.08
Mn ≤ 2.00 ≤ 2.00
P ≤ 0.045 ≤ 0.045
S ≤ 0.030 ≤ 0.030
Si ≤ 1.00 ≤ 1.00
Cr 18.0 – 20.0 18.0 – 20.0
Ni 8.0 – 11.0 8.0 – 11.0
N 0.10 – 0.16 ≤ 0.10
Fe Nhazi nguzozi Nhazi nguzozi

Njirimara Mekaniki (Okpomọkụ Ụlọ, Ngwọta Ejiri Aka Mee):

Akụ na ụba TP304N TP304
Ike Mmepụta (nkezi, 0.2% nke mbelata) 275 MPa (39,900 psi) 205 MPa (30,000 psi)
Ike nrụgide (nkeji) 550 MPa (79,800 psi) 515 MPa (74,700 psi)
Ogologo (nkeji, nha 50mm) Pasentị iri atọ na ise Pasentị iri anọ
Isi ike (kachasị) 90 HRB 90 HRB

Njirimara Anụ Ahụ:

  • Njupụta: 7.93 g/cm³
  • Modulu nke Mgbatị: 200 GPa (29 × 10⁶ psi)
  • Ọgbakọ okpomọkụ: 16.2 W/m·K na 100°C
  • Ọnụọgụ nke Mgbasawanye Okpomọkụ: 17.2 × 10⁻⁶/°C (20-100°C)

Nguzogide Nrụrụ:

  • Yiri 304 n'ọtụtụ ebe (ezigbo iguzogide asịd na-eme ka ihe dị ọcha, asịd organic)
  • Nguzogide pitting dị ntakịrị ka mma n'ihi nitrogen (PREN ≈ 19-20 vs 18 maka 304)
  • Ezigbo nguzogide megide ire ere intergranular mgbe ịgbado ọkụ (mgbe ejiri ngwọta kwesịrị ekwesị mee ka ọ dị nro)
  • Adịghị mma maka ọrụ chloride karịa okpomọkụ gburugburu (jiri 316N ma ọ bụ duplex maka chlorides)

Uru dị mkpa karịa 304:

  • Ike mmepụta dị elu nke 35% na-eme ka mgbidi dị gịrịgịrị (mbelata ibu 20-25%)
  • Nrụgide dị elu a na-ekwe ka ọ dị na ASME Nkebi nke VIII maka arịa nrụgide
  • Njikọta na nhazi yiri ya
  • Nguzogide ọkpọkọ dị ntakịrị mma

3. Nrubeisi na Nrubeisi nke Oke na Ụkpụrụ

ihe Nkọwapụta
Ọkọlọtọ ASTM A312 / ASME SA312 (nakwa A358, A249)
Usoro Mmepụta ERW, EFW, LSAW
Oke Dayameta Mpụta ERW: 6.35 - 610mm; EFW/LSAW: 219 - 1524mm
Oke ọkpụrụkpụ mgbidi ERW: 0.5 - 12.7mm; EFW/LSAW: 4.0 - 50mm
Oge Nhazi Oge 5S, 10S, 40S, 80S (maka NPS 1/8″ – 48″)
Ogologo Ogologo Ọkọlọtọ: 6m; agbatị: 12m, 18m, ruo 24m
Ọgwụgwụ Ọgwụgwụ Ọgwụgwụ Dị larịị (PE), Ọgwụgwụ Beveled (BE)
Mmecha Elu A mịrị amị ma mịchaa ya, a mịrị amị ma mịchaa ya, a mịrị amị
Ndochi OD: ±0.5% ma ọ bụ ±3.2mm; WT: ±12.5% ​​(kwa ASTM A999); Ogologo: +50mm / -0mm

 

4. Nha na nkọwapụta dị - ASTM A312 TP304N Pipe ígwè anaghị agba nchara nke ejiri welded rụọ

NPS OD (mm) Usoro oge WT (mm) Ibu (kg/m) Ogologo Ọkọlọtọ Ngwa nkịtị
1/2" 21.3 10S 2.11 1.00 6m Ahịrị hydraulic
3/4" 26.7 10S 2.11 1.28 6m Usoro ọgwụ kemịkalụ
1" 33.4 10S 2.77 2.09 6m Mmiri nrụgide dị elu
1-1/2" 48.3 10S 2.77 3.11 6m Usoro usoro
2" 60.3 10S 2.77 3.93 6m / 12m Ụgbọ nrụgide
3" 88.9 10S 3.05 6.46 6m / 12m Kọlụm ihe owuwu
4" 114.3 10S 3.05 8.37 6m / 12m Ihe mgbanwe okpomọkụ
6" 168.3 10S 3.40 13.8 6m / 12m Ụlọ ọrụ igwe akwụkwọ
8″ 219.1 10S 3.76 20.0 12m Oke osimiri
10″ 273.0 10S 4.19 27.8 12m Nkwado ihe owuwu
12" 323.9 10S 4.57 36.0 12m Isi isi
16" 406.4 10S 4.78 47.4 12m Shei arịa nrụgide
20″ 508.0 10S 5.54 68.6 12m Dayameta buru ibu
24" 609.6 10S 6.35 94.4 12m Tankị nchekwa

Enwere ike ịchọta akụkụ pụrụ iche n'èzí oke ndị a. TP304N na-enye ohere ka mgbidi dị gịrịgịrị karịa 304 maka otu ọkwa nrụgide ahụ.

5. Ụkpụrụ na Ọkwa E Ji Arụpụta Ígwè A Na-anaghị Acha Acha nke Womic Steel mepụtara

Ọkọlọtọ Ọkwa ígwè Ngwa nkịtị Usoro ịgbado ọkụ
ASTM A312 TP304N, TP304, TP304L, TP316N, TP316 Ọrụ na-emebi emebi, nrụgide ERW/EFW/LSAW
ASTM A358 TP304N, TP304, TP316 Njikọ ọkụ eletrik agbatị EFW
ASTM A249 TP304N Igwe ọkụ, ihe na-ekpo ọkụ, ihe na-agbanwe okpomọkụ ERW/EFW
ASTM A312 TP304L, TP316L Ọrụ n'ozuzu nke mmebi ERW/EFW/LSAW
EN 10217-7 1.4315 (304N) Ebumnuche nrụgide SAW/ERW

Ojiji:Ụgbọ mmiri nrụgide, ihe owuwu, ọkpọkọ mmiri dị n'ụsọ oké osimiri, nhazi kemịkalụ, ihe mgbanwe okpomọkụ, akụrụngwa igwe akwụkwọ.

6. Usoro Mmepụta - Paịpụ ígwè anaghị agba nchara (ERW, EFW, LSAW)

Usoro ERW (Ịgbado ọkụ eletrik) - Obere ruo ọkara dayameta (6.35–610mm OD):

1. Nnyocha Ihe Ndị A Na-anaghị Arụ Ọrụ (Mpempe Akwụkwọ/Kọnịlụ):E gosipụtara na eriri TP304N dị maka nhazi ya (Cr 18-20%, Ni 8-11%, N 0.10-0.16%). Ogidi ọ bụla nwere nọmba okpomọkụ pụrụ iche.

2. Ịkpọghe na Ịkwalite Ọkwa

3. Ịkpụcha akụkụ ákwà mgbochi

4. Ịkpụ:Mpịakọta na-aga n'ihu na-akpụ.

5. Ịgbado ọkụ ugboro ugboro:Ntinye okpomọkụ kachasị mma (≤ 1.5 kJ/mm) iji jide nitrogen. Ọsọ dị elu nwere ike ịdị mkpa.

6. Ịdọkọta ákwà:Mkpọchi mmiri na-esochi ya, wee jiri mmiri kpụọ ya.

7. Nhazi na Nhazi

8. Ịcha ruo n'ogologo

9. NDT:Nnwale ugbu a nke Eddy (100%) + nhọrọ UT.

10.Mkpọchi Ngwọta (Paịpụ zuru oke):1040-1120°C, mmiri na-agbaze. Dị oke mkpa maka ịgbaze nitrides na iweghachi ihe onwunwe.

11.Nnwale Hydrostatic

12.Ịhịa aka n'ahụ na ịta nri

13.Nyocha PMI (XRF) na Nitrogen (ọ bụrụ na akọwapụtara ya)

14.Nnyocha na Akara Ikpeazụ

Usoro EFW (Ịgbado ọkụ eletrik) - Dayameta buru ibu (219–1219mm OD, 4.0–50mm WT):

1. Nkwadebe efere:Efere TP304N, akụkụ ya dị warara (bevel X).

2. Ịkpụ Mpịakọta

3. Ịkwado Tak

4. Mgbọrọgwụ TIG (GTAW):Ihe na-emeju ihe (ER308 ma ọ bụ ER304N), gas na-akwado azụ argon.

5. Ihe ndị e ji ejupụta na okpu SAW mee:SAW nke nwere ọtụtụ ngafe ya na ntinye okpomọkụ a na-achịkwa (≤ 1.8 kJ/mm), nke nwere ike ịgafe ≤ 150°C.

6. Njikọta Dị n'ime

7. Nnwale Redio 100%(kwa ASTM A358)

8. Ngwọta Mbelata:Ọgwụgwọ okpomọkụ zuru oke nke ọkpọkọ (1040-1120°C), ihe na-eme ka mmiri kwụsị.

9. Ịhịa aka n'ahụ na ịta nri

10.Nnwale Hydrostatic

11.Nnyocha na Akara Akụkụ

Usoro LSAW maka igwe anaghị agba nchara - Dayameta buru ibu nke ukwuu (406–1524mm OD, 6.0–50mm WT):

  • UOE ma ọ bụ JCOE na-akpụ site na efere TP304N
  • Ịgbado ọkụ SAW nke nwere akụkụ abụọ
  • Ngwakọta ngwọta zuru oke mgbe ịgbado ọkụ gasịrị

Ihe Ndị Pụrụ Iche Maka TP304N:

  • A ghaghị ịchịkwa ọdịnaya nke nitrogen iji gbochie mmiri ozuzo nitride.
  • Okpomọkụ a na-eme ka mmiri ghara ịdị ọkụ nke ọma (1080-1120°C) iji gbazee nitrides
  • Iji jide nitrogen na ngwọta siri ike, ọ dị mkpa ka a chụpụ mmiri iji jide nitrogen na ngwọta siri ike.
  • Ihe oriri ịgbado ọkụ kwesịrị inwe ọdịnaya nitrogen kwekọrọ (ER308L yana mgbakwunye N)
b35784dc-660f-46c6-a1a9-dca3f174f62f

7. Usoro Njikwa na Nnwale Ogo maka ASTM A312 TP304N Pipe ígwè anaghị agba nchara nke ejiri welded rụọ

Ogbo egwuregwu Usoro Nnyocha Ebumnuche
Akụrụngwa Nyocha Kemịkalụ (OES + Ọkụ maka N) Nyochaa TP304N (N 0.10-0.16%, Cr 18-20%, Ni 8-11%)
Akụrụngwa Nnwale Nrụgide Lelee mmụba ≥ 275 MPa, nrụgide ≥ 550 MPa
Akụrụngwa Ike siri ike ≤ 90 HRB
N'ime usoro Nlekota Ntinye Okpomọkụ ≤ 1.8 kJ/mm
Njikọta (ERW) Eddy Current (100%) iguzosi ike n'ezi ihe nke njikọta weld
Njikọta (EFW/LSAW) 100% UT (ma ọ bụ PAUT) Chọpụta ntụpọ weld
Njikọta (EFW/LSAW) RT (ntụpọ ma ọ bụ 100% kwa nkọwapụta) Ogo ịgbado ọkụ
Weld Agba Na-abanye n'ime (PT) Mgbawa elu
Mgbe Ngwọta ahụ gasịrị Ule Ike ≤ 90 HRB
Mgbe Ngwọta ahụ gasịrị Nyocha Nitrogen (ọ bụrụ na akọwapụtara ya) Gosipụta ọdịnaya N na paịpụ emechara
Paịpụ Emechara Nnwale Hydrostatic Iguzosi ike n'ezi nrụgide
Paịpụ Emechara Ịgbagọ agbagọ / Nduzi Ductility
Paịpụ Emechara PMI (XRF) Kwado ọkwa (Cr, Ni)
Paịpụ Emechara Ihe a na-ahụ anya na ihe a na-akara Ịchọpụta ihe dị na ya

Ule Nhọrọ:

  • Nnwale nrụgide okpomọkụ dị elu (ọ bụrụ na achọrọ maka imewe)
  • Nnwale nchara (ASTM G48) maka ọrụ dị oke mkpa
  • Nnwale nchara dị n'etiti granular (ASTM A262 Practice E)

8. Ngwa Ndị Isi – ASTM A312 TP304N Paịpụ ígwè anaghị agba nchara nke ejiri welded rụọ

1. Ụgbọ mmiri nrụgide na tankị nchekwa:Nrụgide dị elu nke ASME kwadoro dịka Nkebi nke VIII si kwuo na-enye ohere ka mgbidi ndị dị gịrịgịrị (20-25% nchekwa ibu) ma e jiri ya tụnyere 304.

2. Ihe owuwu dị na gburugburu ebe obibi na-emebi emebi:Nkwado n'elu ikpo okwu dị n'èzí, nhazi usoro osisi kemịkalụ, ogidi osisi nhazi nri. Ike dị elu na-ebelata nha nkebi.

3. Paịpụ n'elu ikpo okwu dị n'èzí:Nhazi paịpụ ebe achọrọ ọkwa nrụgide dị elu mana ọ dịghị mkpa duplex. TP304N na-enye ike dị n'etiti.

4. Nhazi kemịkalụ (sistemụ nrụgide dị elu):Paịpụ mmiri na-abanye/na-apụ apụ nke reactor, eriri nnyefe nrụgide dị elu ebe 304 ezughi oke mana 316L ka akọwapụtara nke ọma.

5. Akpụkpọ ụkwụ na tube ndị na-agbanwe okpomọkụ:Enwere ike ịbawanye nrụgide akụkụ nke shei na-enweghị ihe na-eme ka shei ahụ sie ike. Tubes nwere ike inwe mgbidi dị gịrịgịrị maka mbufe okpomọkụ ka mma.

6. Ngwa igwe akwụkwọ:Ahịrị ọkpọkọ nri, ọkpọkọ nkwadebe ngwaahịa ebe ike dị elu na-eguzogide mbuze-njehie.

7. Ụlọ ọrụ ime biya na ọkpọkọ mmiri ara ehi:Sistemụ CIP (Clean-In-Place) dị elu na ahịrị ngwaahịa na-arụ ọrụ na mmanya 10-15.

8. Ahịrị hydraulic:Ngwaọrụ na ahịrị njikwa chọrọ nrụgide mgbawa dị elu karịa 304.

9. Ahụ mgbapụta na valvụ:Ihe ndị e ji mee ihe ma ọ bụ ihe e ji arụ ọrụ (na-anọchi 304 na ike dị elu).

10.Sistemụ ọgwụgwọ mmiri nrụgide dị elu:Ahịrị nri osmosis azụ (ọkwa nrụgide dị elu).

11.Usoro owuwu ụlọ:Ebe ike dị elu na-enye ohere ka profaịlụ dị gịrịgịrị (aka, nkwado).

9. Nkwakọ ngwaahịa na Mbupu - ASTM A312 TP304N Pipe ígwè anaghị agba nchara nke ejiri ígwè rụọ

Nkwakọ ngwaahịa:

  • Nchedo mgbochi ire ere:Paịpụ e ji mmanụ ma ọ bụ akwụkwọ VCI mee. Maka nri/ime achịcha, enweghị ihe fọdụrụ n'ime mmanụ (ihe mkpuchi plastik).
  • Mkpọchi njedebe:Okpu plastik maka nsọtụ ndị a gbagọrọ agbagọ.
  • Njikọta (obere dayameta):Ngwugwu ndị a nwere eriri ígwè na akwụkwọ na-ejikọta ọnụ.
  • Nkwakọ ngwaahịa nkeonwe (Diameta buru ibu):Ihe mkpuchi plastik.
  • Igbe osisimaka ngwa dị mkpa.

Mbupu:

  • Akpa maka ≤ 610mm, nnukwu ihe maka dayameta buru ibu.
  • Akwụkwọ:MTC 3.1/3.2, akụkọ nnwale hydro, akụkọ eddy ugbu a/UT, akụkọ PMI, akụkọ nha, ndepụta ngwugwu, COO.

10. Uru na Ajụjụ Ndị A Na-ajụkarị Banyere Womic Steel – ASTM A312 TP304N Paịpụ ígwè anaghị agba nchara nke ejiri ígwè rụọ

Gịnị mere ị ga-eji soro Womic Steel rụkọọ ọrụ maka TP304N Welded Pipe?

  • Oke nha zuru oke: ERW 1/4″ – 24″, EFW/LSAW 8″ – 60″.
  • Mbelata ngwọta zuru oke mgbe ịgbado ọkụ (1040-1120°C, mmiri gbanyụọ).
  • A na-enyocha njide nitrogen site na nyocha ọkụ.
  • Ike dị elu na-eme ka mgbidi dị gịrịgịrị - nchekwa ibu nke 20-25% karịa 304.
  • Oge ndị na-eduga asọmpi: ụbọchị 25-35 maka ERW, ụbọchị 35-50 maka EFW/LSAW.
  • Asambodo zuru ụwa ọnụ: ISO 9001, PED (CE), EN 10204 Ụdị 3.2.

Ajụjụ Ndị A Na-ajụkarị (Ajụjụ Ndị A Na-ajụkarị) – ASTM A312 TP304N Pipe Ejiri Agbado

Q: Kedu uru TP304N bara karịa 304 ọkọlọtọ?
A: TP304N nwere ike mmepụta dị elu karịa 35% (275 MPa vs 205 MPa) ebe ọ na-ejigide iguzogide nchara, ductility, na ike ịgbado ọkụ yiri nke ahụ. Nke a na-enye ndị na-emepụta ihe ohere iji mgbidi dị gịrịgịrị maka arịa nrụgide na paịpụ, na-ebelata ibu site na 20-25% ma na-ebelata ọnụ ahịa ihe maka otu ọkwa nrụgide ahụ. Maka ngwa nhazi, enwere ike iji obere nha ngalaba.

Q: TP304N ọ dị oke ọnụ karịa 304?
A: N'ihi na nitrogen na-agwakọta ya na njikwa nhazi siri ike. Agbanyeghị, nchekwa ibu (mgbidi dị gịrịgịrị 20-25%) na-ebutekarị obere ọnụ ahịa ihe maka ngwa ndị nwere nrụgide. Maka ngwa nhazi ebe ike dị oke mkpa, mbelata ibu nwere ike belata ọnụ ahịa nke otu.

Q: Enwere ike ịgbado TP304N n'enweghị nitrogen efu?
A: Ee, site na paramita ịgbado ọkụ kwesịrị ekwesị (okpomọkụ dị ala, ≤ 1.8 kJ/mm) na ígwè e ji emeju ihe kwesịrị ekwesị (ER308 ma ọ bụ ER304N). Nitrogen nke a na-ejide n'ime ígwè ịgbado ọkụ na-abụkarị 80-90% nke ígwè ntọala. Usoro ERW nke Womic na-eji ịgbado ọkụ ugboro ugboro kachasị mma nke na-ebelata mfu nitrogen. Maka ojiji dị mkpa, ịgbado ọkụ ngwọta mgbe ịgbado ọkụ gasịrị na-eweghachi nkesa nitrogen.

Q: TP304N ọ chọrọ ka a na-agbaze mmiri mgbe a gbanyere ya ọkụ?
A: ASTM A312 chọrọ ka a na-eme ...

A: TP304N ọ dị mma maka ọrụ mmiri mmiri?
A: A naghị atụ aro ya. TP304N nwere otu ike iguzogide pitting na 304 (PREN ≈ 19-20). Maka gburugburu mmiri mmiri ma ọ bụ nke nwere chloride dị elu, jiri 316N (na Mo) ma ọ bụ ígwè anaghị agba nchara duplex. TP304N bụ maka ngwa ndị chọrọ ike dị elu na gburugburu ebe na-abụghị chloride ma ọ bụ obere chloride.

A: Kedu ihe bụ nrụgide a na-anabatakarị maka TP304N na ASME Nkebi nke VIII?
A: N'okpomọkụ ụlọ, nrụgide a na-ekwe ka TP304N dị ihe dịka 137 MPa (20,000 psi) megide 115 MPa (16,700 psi) maka 304 - ihe dị ka 19% karịa. Ọnụego ndị ahụ dabere na okpomọkụ; lee Nkebi nke Abụọ nke ASME, Nkebi nke D. Ndị na-emepụta ihe kwesịrị iji ụkpụrụ nrụgide ziri ezi a na-ekwe ka ọ dị maka ọkwa akọwapụtara.

Q: Kedu oge ndu nkịtị maka ọkpọkọ ígwè anaghị agba nchara nke TP304N?
A: Ụbọchị 25-35 maka ERW (dayameta dị obere ruo ọkara), ụbọchị 35-50 maka EFW/LSAW (dayameta buru ibu). TP304N bụ ọkwa ọkọlọtọ maka ọtụtụ igwe nrụpụta, yabụ oge ndu yiri 304.

Q: Enwere ike iji TP304N rụọ ọrụ okpomọkụ dị elu (karịa 500°C)?
A: Ike okpomọkụ dị elu nke TP304N ka mma karịa 304 n'ihi na nitrogen siri ike na-eme ka ngwọta ya sie ike. Agbanyeghị, maka ọrụ na-adịgide adịgide karịa 550°C, a na-ahọrọ ọkwa nwere carbon dị elu (304H) ma ọ bụ ọkwa ndị na-eguzogide creep (321H, 347H). TP304N kacha mma maka okpomọkụ dị ala (<425°C) ebe achọrọ ike.

11. Ntụaka Ọrụ – Nkwado Paịpụ na Nhazi nke Ikpo Okwu n'Oké Osimiri (Brazil)

Obodo:Brazil (Campos Basin, nke dịpụrụ adịpụ Rio de Janeiro)
Ọkọlọtọ na ọkwa:ASTM A312 TP304N (agbadoro)
Akụkụ na Ọnụọgụ:

  • OD 219.1mm (8″) × Usoro 10S (3.76mm WT) – mita 1,200 (ihe dị ka tọn 28) – Usoro EFW
  • OD 168.3mm (6″) × Usoro 10S (3.40mm WT) – mita 1,800 (ihe dị ka tọn 22) – Usoro ERW
  • OD 114.3mm (4″) × Usoro 10S (3.05mm WT) – mita 2,500 (ihe dị ka tọn 20) – Usoro ERW
  • OD 60.3mm (2″) × Usoro 10S (2.77mm WT) – mita 3,000 (ihe dị ka tọn 12) – Usoro ERW
  • OD 406.4mm (16″) × Usoro 10S (4.78mm WT) – mita 300 (ihe dị ka tọn 12) – usoro EFW (ogidi nhazi)

Ngụkọta:Mita 8,800 (kilomita 8.8), ihe dị ka tọn 94

Nkọwapụta:Ngwakọta ASTM A312 TP304N a gwakọtara agwakọta ma gwerie ya, e ji obere akụkụ mee ya. Nnwale Hydrostatic. 100% UT maka paịpụ EFW, ọkụ eletrik maka ERW. PMI na paịpụ ọ bụla. Nnwale nrụgide (mkpụrụ ≥ 275 MPa, enwetara 310-340 MPa; nrụgide ≥ 550 MPa, enwetara 580-620 MPa). Mmetụta Charpy na -20°C (min 27J, enwetara 100-150J). Nnwale nchara dị n'etiti granular dịka ASTM A262 Practice E si dị (gafee). Nnwale nke atọ site na DNV Brazil.

Ngwa:Ngwunye ọkpọkọ na nkwado nhazi maka ikpo okwu mmepụta mmiri dị n'ụsọ oké osimiri na Campos Basin. Aka ọkpọkọ usoro ahụ mepụtara mmiri na gas dị ala na 50-80°C yana obere ọdịnaya chloride (mmiri e mepụtara nke a gwọchara). Nkwado nhazi ahụ bụ maka ihe eji skid na paịpụ. Ikpo okwu ahụ chọrọ mbelata ibu iji gbasaa ndụ ọrụ ya (nsogbu ike ọgwụgwụ). Ahọpụtara TP304N maka ike mmepụta ya dị elu nke 35%, na-enye ohere ka mgbidi dị gịrịgịrị (Nhazi 10S kama Usoro 40S) maka ma paịpụ na ndị otu nhazi.

Ọnọdụ Injinia:E mere ikpo okwu a na mbụ maka paịpụ 304. Site n'ịkwalite ya na TP304N ma belata ọkpụrụkpụ mgbidi site na Schedule 40S (4.55-8.18mm) gaa na Schedule 10S (2.77-4.78mm), ndị otu injinia nwetara mbelata ibu 45% na paịpụ na mbelata ibu 30% na nkwado ihe owuwu - nchekwa ibu zuru oke nke tọn 35 (27% nke ibu mbụ). Nke a mere ka ikpo okwu ahụ nọgide na-enwe mmefu ego ibu dị n'elu ya.

Ihe Ịma Aka na Ngwọta Teknụzụ:

  • Mbelata ibu n'enweghị mmebi nke ọkwa nrụgide– Ike mmepụta dị elu nke TP304N mere ka mgbidi dị gịrịgịrị dịka ASME B31.3 si dị. Maka paịpụ 8″, Schedule 10S (3.76mm) dochie Schedule 40S (8.18mm), na-ebelata ibu site na 54%. Womic nyere asambodo nha na akụkọ nnwale nrụgide. Nnwale Hydrostatic na 3.0 MPa gafere (nrụgide imewe 1.8 MPa, nrụgide ule 2.7 MPa).
  • Njikọta ike ígwè weld– ERW na EFW weld metal ga-enwerịrị ike hà nhata ígwè ntọala. Womic ERW paramita kachasị mma iji nweta arụmọrụ nkwonkwo weld nke 95% (ike nrụgide 560 MPa vs ntọala 590 MPa). EFW welds site na iji ihe na-eme ka ER308 filler nweta arụmọrụ nkwonkwo 100%. Nnwale nrụgide weld niile gafere.
  • Mgbochi ire ere na mbelata ọkpụrụkpụ mgbidi– Mgbidi ndị dị gịrịgịrị enweghị oke ohere ire ere. Mmiri e mepụtara dị obere chloride (<50 ppm) yana pH 6.5-7.5, yabụ ọnụego ire ere dị ala. TP304N nwere ntakịrị ike iguzogide olulu karịa 304 n'ihi nitrogen. Womic mere ule olulu ASTM G48 (awa 24 na 22°C) - enweghị olulu. Onye ahịa nabatara ya.
  • Nhazi nkwado ihe owuwu site na iji TP304N– Ogidi nhazi nke 16″ jiri Usoro 10S (4.78mm) kama Usoro 40S (9.53mm). Nyocha ihe ndị dị na njedebe (FEA) kwadoro na mgbidi dị gịrịgịrị nke nwere ike mmepụta dị elu nke TP304N nyere ikike ibu nhata. Womic nyere nnabata kwụ ọtọ ≤ 0.15% maka iguzosi ike na kọlụm.
  • Usoro ịgbado ọkụ ubi maka TP304N– Ndị otu na-ahụ maka nrụzi ikpo okwu kwesịrị ịgbanwe paịpụ n'oge nrụnye. Womic nyere WPS site na iji GTAW na ihe na-ejupụta ER308, ntinye okpomọkụ ≤ 1.8 kJ/mm, interpass ≤ 150°C. Kupọns weld 20 gafere ule RT, PT, na tensile.
  • Ngwa njem gaa na Campos Basin– E si Shanghai bufee paịpụ gaa Rio de Janeiro, wee gaa n'elu ikpo okwu dị n'èzí site na ụgbọ mmiri ọkọnọ. DNV lere paịpụ ndị ahụ anya mgbe ha na-ebu ibu. E bufere tọn 94 niile n'ime mbupu abụọ n'ime izu ise.

Nsonaazụ:E tinyere paịpụ n'elu ikpo okwu na ihe nkwado nhazi n'ime nkeji nke abụọ nke afọ 2024. Nchekwa ibu nke tọn 35 nyere ikpo okwu ahụ ohere iru oke ibu ya n'elu na-achọghị nkwado nhazi. Mgbe ọnwa 12 nke ọrụ gasịrị, nyocha egosighi mmebi ọ bụla ma ọ bụ mmebi nke njikọta. Onye ọrụ ahụ na-eme atụmatụ iji TP304N maka mmelite ikpo okwu n'ọdịnihu iji belata ibu ma gbasaa ndụ ihe onwunwe. Womic Steel bụzi onye na-ebubata ihe ruru eru maka mkpa paịpụ ígwè anaghị agba nchara nke onye ọrụ a.

Kpọtụrụ:
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Ekwentị / WhatsApp / WeChat:
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Womic Steel – Onye mmekọ gị a pụrụ ịtụkwasị obi maka ASTM A312 TP304N nke ejiri ọkpọkọ ígwè anaghị agba nchara rụọ maka arịa nrụgide, ikpo okwu ndị dị n'ụsọ oké osimiri, ngwa nhazi, na sistemụ kemịkalụ dị elu n'ụwa niile.

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