ASTM A106 em i standet 'seamless carbon steel' paip we planti ol disaina i save makim taim lain i mas karim hatpela wara o ges aninit long presa. Em i wokim bilong sevis long 'elevated-temperature, em i gat sais bihainim ASME B36.10M, na ol i ken saplaim wantaim ol 'plain' o 'beveled' pinis bilong weldim, bendim na 'flanging'. Namel long ol Gret A, B na C insait long ASTM A106, ol i yusim Gret B moa yet bikos em i givim gutpela miks bilong strong, 'ductility' na 'weldability' bilong ol 'steam line', 'refinary headers', 'process piping' na 'power plant circuits'.
Ol Stendet na Diliveri
- Standet: ASTM A106 / ASME SA106
- Gret: B (i gat A, C tu sapos projek i larim)
- Fom: Nogat rop, hot-pinis o kol-pinis
- Ol arere: Plen end (PE) o beveled end (BE) bilong weldim
- Ol sais: ASME B36.10M, NPS na sediul-bes
Kemikel Komposesen
Gret i kamap long wanpela simpol, gutpela -kontrolim kabon-manganis-silikon disain. Kontrol bilong P na S i mekim paip i stap strong na weldim.
| Gret | C (%) | Mn (%) | P (%) maks | S (%) maks | Si (%) min |
|---|---|---|---|---|---|
| A | Liklik o wankain olsem 0.25 | 0.27–0.93 | 0.035 | 0.035 | 0.10 |
| B | Liklik o wankain olsem 0.30 | 0.29–1.06 | 0.035 | 0.035 | 0.10 |
| C | Liklik o wankain olsem 0.35 | 0.29–1.06 | 0.035 | 0.035 | 0.10 |
Bilong wanem dispela i bikpela samting: kabon i givim gret strong bilong en; manganese i helpim long strongim 'ferrite-pearlite' straksa na i mekim strong bilong en i kamap gutpela moa; silikon i save helpim skel/oksidasen strong taim paip i karim hatpela stim o proses midia.
Ol samting bilong masin
Gret B em i "namel" gret tasol em i strong pinis long planti wok bilong ol diwai.
| Gret | Strong bilong 'Tensile' (MPa) | Strong bilong Kamapim (MPa) | Longpela (%) |
|---|---|---|---|
| A | Bikpela o wankain olsem 330 | Bikpela o wankain olsem 205 | Bikpela o wankain olsem 20 |
| B | Bikpela o wankain olsem 415 | Bikpela o wankain olsem 240 | Bikpela o wankain olsem 20 |
| C | Bikpela o wankain olsem 485 | Bikpela o wankain olsem 275 | Bikpela o wankain olsem 20 |
Mining bilong disain na wokim: strong bilong 'tensile' i save lukautim yu long ol samting we i pairap na ol hevi bilong 'axial'; strong bilong 'yield' em i mak pastaim long 'permanent deformation', em i bikpela samting tru long ol 'high-pressure runs; 'elongation' i mekim na paip i ken 'field-bent, weldim na putim na i no gat bruk.
Pefomens insait long Hai-Tempereja Sevis
A106 Gret B em i bilong stap long sevis long ol metal tempereja inap long 400-450 digri ben. Long dispela level, 'ferrite-pearlite' maikrostraksa i stap gut, silikon i helpim pes long sakim 'scaling', na paip i holim presa-bearing kapasiti bilong en. Long dispela as ol i makim bilong ol 'boiler feed lines', 'steam headers', 'heat-exchanger paiping', 'hot oil service' na ol 'refinary utility systems'. Sapos yu yusim gutpela PWHT na wok bilong weldim, paip inap long ron long 'cyclic service' na i no inap lusim strong bilong en hariap.
Wok bilong wokim na hat tritmen
Long A106 Gret B rot bilong wokim samting i no wanpela 'accessory point' - em i as na paip inap long wok long bikpela tempereja na presa. Wanpela rot bilong 'mill' bilong 'seamless A106 Grade B' long 'Octal Pipe' i luk olsem:
1. Seleksen bilong 'billet' na 'chemistry control'
Prodaksen i stat long ol gutpela 'carbon steel' we ol i kilim pinis (ol i no gat 'oxidize' olgeta), na ol i gat gutpela 'grain' kabon steel we i gat A106 kemikel mak pinis. Dispela i mekim P na S i stap daunbilo, gutpela klinpela na weldim. Ol i save sekim ol 'heats' pastaim long ol i rolim bai ol i ken winim ol 'mechanical targets' bilong Gret B bihain long ol i wokim na 'heat treatment'.
2. Billet heating
Ol i save hatim ol 'billets' insait long wanpela 'rotary' o 'walking-beam furnace inap long mak bilong sutim/rolim. Yunifom hiting em i bikpela samting long hia bikos tempereja i no wankain bai mekim wol-tiknes i senis taim ol i sutim 'billet'.
3. Hot piercing (mekim hul)
Ol i save sutim hotpela 'billet' long wanpela 'cross-roll' o 'mandrel piercing mill' bilong kamapim wanpela hul sel. Dispela em i hap we paip i tanim long strongpela raun i go long wanpela 'seamless tube'. As tingting bilong dispela em long kamapim wanpela sel we i no gat wanpela 'central burst' na i gat wankain wol i raunim 'circumference' bilong en.
4. Longpela na 'plug/mandrel rolling'
Bihain ol i mekim dispela hul sel i kamap longpela na rolim antap long wanpela 'mandrel' o 'plug mill' bilong kamap klostu long 'diameter' na 'wall thickness'. Ol i ken yusim sampela 'rolling stands' long stretim wol na mekim pes bilong en i kamap gutpela moa. Dispela step em i bikpela samting long mekim insait bilong en i kamap gutpela na long holim bikpela bilong wol i stap insait long mak bilong en.
5. Sais/daunim mil
Wanpela 'sizing' o 'reducing mill' i save bringim paip i go long laspela OD na raunpela bilong en. Long ol bikpela sediul (ol wol i tik), ol i save stretim ol 'rolling parameters' long holim 'concentricity'. Stretpela sais hia i min olsem em i isi long weldim na em i gutpela long putim long ples.
6. Mekim i kol na stretim
Bihain long ol i wok long hatpela paip, ol i save mekim ol paip i kol long wanpela gutpela rot na bihain ol i save putim i go insait long wanpela masin bilong stretim. Stretpela pasin em i bikpela samting long ol 'prefabricated spools' na long 'automatic welding'.
7. Hat tritmen (olsem ol i nidim)
I dipen long sais bilong paip, 'reduction ratio' na laik bilong man i baim, ol paip i ken kamap nomol o 'stress-relief.
Taim ol i mekim i kamap wankain, dispela i save stretim 'ferrite-pearlite' straksa, na i save mekim ol samting i kamap wankain longpela bilong en na i save mekim strong bilong en i kamap gutpela moa.
'Stress relief' i save rausim ol 'forming stresses', we i gutpela sapos ol i weldim paip i go insait long wanpela sistem we bihain bai i gat 'thermal cycling'.
Dispela 'controlled heat treatment' em i samting we i helpim A106 Gret B long holim 'ductility' na 'impact resistance' bilong en long hot sevis.
8. Pinisim, NDE na haidrotest
Ol i save katim ol paip we i pinis longpela bilong en, ol i save lukluk long pes/bevelim ol arere bilong en, na ol i save sekim olgeta wan wan longpela bilong en long ai bilong luksave long stretpela mak bilong pes na mak bilong en. Bihain ol i testim paip:
- 'hydrostatic' tes bilong soim olsem presa i stap longpela taim
- eddy-current o ultrasonic NDE long lukluk long ol hevi insait/stap antap
- makim na karamapim/varnis bilong lukautim
- Bihain tasol long olgeta dispela step ol i lusim paip wantaim wanpela MTC.
Bikos olgeta rot i no gat 'seamless' (i no gat 'longitudinal weld'), paip i gat wankain presa resistans long ful 'circumference' - as tru na ol i makim A106 winim welded paip bilong mekim sevis long bikpela -temperature.
Dimensional Range
(olsem saplai, inap bihainim askim bilong projek)
| Samting | Spesifikasen |
|---|---|
| Sais | NPS 1/8" – 36" (ASME B36.10M) |
| Tiknes bilong wol | SCH 10 – SCH XXS (incl. 40, 80, 160) |
| Longpela | 5-12 m (SRL / DRL) o katim-long-longpela |
| I pinis | PE / BE, ol 'protector caps' sapos yu askim |
Testing na Inspeksen
Long mekim paip i orait long presa na hot sevis, ASTM A106 i makim ol jenerel rikwaemen insait long ASTM A999. Octal Pipe inap long givim ful rot bilong testim:
- Hydrostatic test long wanwan longpela bilong pruvim presa kontenmen
- Nondestructive eksaminesen (eddy current o ultrasonic) long sekim ol samting i stap antap na insait long bodi
- Ol tes bilong 'tensile' na 'hardness' long wanwan hat bilong ain bilong sekim sapos 'mechanical compliance'
- Ol tes bilong 'flattening' o 'bend' bilong soim 'ductility'
- Lukluk, OD, wol na sekim longpela bilong lukim olsem ol i wankain
- MTCs i go long EN 10204 3.1/3.2 bilong kisim ful hat na tes trasebiliti
Ol aplikesen
| Sekta | Ol kain yusim |
|---|---|
| Pawa na boila | Ol lain bilong stim, ol lain bilong givim wara, ol paip bilong helpim boiler |
| Rifaineri na petrokemikel | Proses stim, hai-temperature yutiliti lain, hita paip |
| Ol kemikel plent | Hit eksenja na kondensa paip, hot midia trensfe |
| Oil na ges | Ol lain bilong bungim na transmisen we i gat bikpela hat long graun we ol i makim CS we i no gat hevi |
| Jeneral indastrial | Hai-presa bilong win, hat wara na 'thermal-fluid sistem |
Bikpela samting em olsem A106 Gret B i stap taim sevis i stap wantaimi no gat maknahai-temperature. Taim ol i nidim rum-temperature o straksa, ol baia i save go long ASTM A53; taim ol i nidim lain paip wantaim ol PSL rikwaemen, ol i go long API 5L. Sapos yu putim dispela pes i stap klia long "high-temperature seamless CS pipe" dispela bai helpim Google long kliagut long wanem samting dispela URL i toktok long en.
Bilong wanem Oktal Paip bilong ASTM A106 Gret B
- Ol i wokim wanpela 'seamless carbon steel pipe' long ASTM A106 / ASME SA106
- Gret B olsem standet; Gret A o C taim projek i laikim
- Katim-i go long-longpela, ol arere i gat 'beveled', 'coating' / 'varnish' na 'export packing' i stap
- Olgeta tes (haidro, NDE, mekanik) i stap long pepa na ol i ken painim
- Ol i ken stretim wok sekim bilong namba tri lain (BV, SGS, LR, na ol narapela) pastaim long salim i go
- Saplaim ekspiriens bilong ol rifaineri, pawa na kemikel plent we ol pepa i mas wankain olsem ol EPC rikwaemen
FAQ
Q1: Ol i save yusim ASTM A106 Gret B seamles paip long wanem samting?
Q2: Wanem samting i narapela long ASTM A106 Gret B na ASTM A53 Gret B?
Q3: Wanem ol tes na pepa mi mas askim long ASTM A106 Gret B paip?
Ol setifikesen
CE Setifiket
ISO 9001 Setifiket
API Q1 Setifiket
ABS Setifiket
AP-5L Setifiket
API-5CT Setifiket
