ASTM A312 Nerjaveèi tiyo Spesifikasyon, Klas, Aplikasyon
Kite yon mesaj
Ki sijè ki abòde spesifikasyon ASTM A312 la?
ASTM A312 se spesifikasyon estanda prensipal pou tib asye pur austenitic, ki aplikab nan tanperati ki wo ak anviwònman ki trè korozivite. Li kouvri tib san pwoblèm, dwat-tib soude kouti, ak gwo frèt-tib travay, epi li presize estanda fabrikasyon, dimansyon, ak tès sevè pou tib san pwoblèm ak soude yo itilize nan endistri ki mande tankou raffinerie lwil oliv, plant chimik, ak jenerasyon pouvwa.
ASTM A312 Nerjaveèi tiyo Dimansyon ak Faktori
San pwoblèm (SMLS): Manifaktire san yon kouti soude.
Soude (WLD): Manifaktire lè l sèvi avèk yon pwosesis soude otomatik ki pa gen okenn adisyon nan metal filler.
Klas komen: TP304, TP304L, TP316, TP316L, TP321, TP347, TP904L.
Konpozisyon chimik
Dapre ASTM A312, kondisyon chimik yo (max% sof si yo bay yon seri) se:
| Klas | UNS | C | Mn | P | S | Si | Kr | Ni | Mo |
| TP304 | S30400 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0–20.0 | 8.0–11.0 | - |
| TP304L | S30403 | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0–20.0 | 8.0–12.0 | - |
| TP316 | S31600 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0–18.0 | 11.0–14.0 | 2.0–3.0 |
| TP316L | S31603 | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
| TP904L | N08904 | 0.02 | 2.00 | 0.040 | 0.030 | 1.00 | 19.0–23.0 | 23.0–28.0 | 4.0–5.0 |
Pwopriyete mekanik
Tiyo a dwe konfòme yo ak kondisyon sa yo tansyon ak dite:
| Klas | Fòs rupture (min) | Fòs Sede (min) | Elongasyon nan 2 pous (min) |
| TP304 / 316 | 515 MPa (75 ksi) | 205 MPa (30 ksi) | 35% |
| TP304L / 316L | 485 MPa (70 ksi) | 170 MPa (25 ksi) | 35% |
| TP904L | 490 MPa (71 ksi) | 220 MPa (32 ksi) | 35% |
ASME B36.19 / ASTM A312 Dimansyon tiyo asye pur
Estanda a aplike nan tiyo ki sòti nan NPS 1/8 "a 30" (DN6 a DN750) ak epesè miray ki konfòme ak orè ASME B36.19 (egzanp, SCH 10S, 40S, 80S, XXS).
| NPS (pous) | DN (mm) | Dyamèt deyò (mm) | Sch 5S (WT mm) | Sch 10S (WT mm) | Sch 40S (WT mm) | Sch 80S (WT mm) |
| 1/8" | 6 | 10.3 | - | 1.24 | 1.73 | 2.41 |
| 1/4" | 8 | 13.7 | - | 1.65 | 2.24 | 3.02 |
| 3/8" | 10 | 17.1 | - | 1.65 | 2.31 | 3.20 |
| 1/2" | 15 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4" | 20 | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 |
| 1" | 25 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
| 1-1/4" | 32 | 42.2 | 1.65 | 2.77 | 3.56 | 4.85 |
| 1-1/2" | 40 | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 |
| 2" | 50 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 |
| 2-1/2" | 65 | 73.0 | 2.11 | 3.05 | 5.16 | 7.01 |
| 3" | 80 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 |
| 4" | 100 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
| 5" | 125 | 141.3 | 2.77 | 3.40 | 6.55 | 9.53 |
| 6" | 150 | 168.3 | 2.77 | 3.40 | 7.11 | 10.97 |
| 8" | 200 | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 |
| 10" | 250 | 273.1 | 3.40 | 4.19 | 9.27 | 12.70* |
| 12" | 300 | 323.9 | 3.96 | 4.57 | 9.53 | 12.70* |
Lè w ap fè kòmann, toujou presize NPS (Dimansyon Tiyo nominal), Orè (Epesè Mi), Klas, ak Metòd Faktori (San pwoblèm oswa Soude).
Egzanp: ASTM A312 TP316L SMLS, NPS 1, Sch 40S, 6000mm longè.
Tolerans ASTM A312
Tolerans ASTM A312 espesifye varyasyon akseptab nan dyamèt deyò, epesè miray, ak longè pou tiyo asye pur san pwoblèm ak soude, jan sa endike nan tablo ki anba a:
| STANDARD | OD(D) | TOLERANS (MM) | Epesè (yo) | TOLERANS | LONGÈ | TOLERANS |
| MM | COMMON HIGH | MM | MM | MM | ||
| A312 | 10.3 Mwens pase oswa egal a D Mwens pase oswa egal a 48.3 | +0.4/-0.8 | 10.3 Mwens pase oswa egal a D Mwens pase oswa egal a 73.0 | +20%/-12.5% | Pou tout gwosè | +6.0/0 |
| 48.3 | +0.8/-0.8 | 88.9 Mwens pase oswa egal a D Mwens pase oswa egal a 457.2,ID<5% | +22.5%/-12.5% | |||
| 114.3 | +1.6/-0.8 | 88.9≤D≤457.2,ID>5% | +15%/-12.5% | |||
| 219.1 | +2.4/-0.8 | D Pi gran pase oswa egal a 508.0,tD Mwens pase oswa egal a 5%,SMLS | +22.5%/-12.5% | |||
| 457.2 | +3.2/-0.8 | D≥508.0,tD>5%, SMLS | +15%/-12.5% | |||
| 660.4 | +4.8/-0.8 | D Pi gran pase oswa egal a 508.0, WLD | +17.5%/-12.5% | |||
| 863.6 | +4.8/-0.8 |
ASTM A312 Tablo pwa tiyo asye pur (kg/m)
| NPS (pous) | DN (mm) | OD (mm) | Sch 10S (WT mm) | Pwa (kg/m) | Sch 40S (WT mm) | Pwa (kg/m) | Sch 80S (WT mm) | Pwa (kg/m) |
| 1/8" | 6 | 10.3 | 1.24 | 0.28 | 1.73 | 0.37 | 2.41 | 0.48 |
| 1/4" | 8 | 13.7 | 1.65 | 0.50 | 2.24 | 0.64 | 3.02 | 0.81 |
| 3/8" | 10 | 17.1 | 1.65 | 0.64 | 2.31 | 0.86 | 3.20 | 1.11 |
| 1/2" | 15 | 21.3 | 2.11 | 1.01 | 2.77 | 1.28 | 3.73 | 1.64 |
| 3/4" | 20 | 26.7 | 2.11 | 1.30 | 2.87 | 1.71 | 3.91 | 2.23 |
| 1" | 25 | 33.4 | 2.77 | 2.12 | 3.38 | 2.54 | 4.55 | 3.29 |
| 1-1/4" | 32 | 42.2 | 2.77 | 2.73 | 3.56 | 3.44 | 4.85 | 4.54 |
| 1-1/2" | 40 | 48.3 | 2.77 | 3.16 | 3.68 | 4.11 | 5.08 | 5.50 |
| 2" | 50 | 60.3 | 2.77 | 3.99 | 3.91 | 5.52 | 5.54 | 7.60 |
| 2-1/2" | 65 | 73.0 | 3.05 | 5.34 | 5.16 | 8.77 | 7.01 | 11.59 |
| 3" | 80 | 88.9 | 3.05 | 6.56 | 5.49 | 11.47 | 7.62 | 15.51 |
| 4" | 100 | 114.3 | 3.05 | 8.50 | 6.02 | 16.32 | 8.56 | 22.67 |
| 5" | 125 | 141.3 | 3.40 | 11.74 | 6.55 | 22.10 | 9.53 | 31.44 |
| 6" | 150 | 168.3 | 3.40 | 14.04 | 7.11 | 28.70 | 10.97 | 43.23 |
| 8" | 200 | 219.1 | 3.76 | 20.28 | 8.18 | 43.21 | 12.70 | 65.65 |
| 10" | 250 | 273.1 | 4.19 | 28.22 | 9.27 | 61.24 | 12.70 | 82.83 |
12" |
300 | 323.9 | 4.57 | 36.55 | 9.53 | 74.96 | 12.70 | 99.00 |
Tretman Chalè & Sifas Fini
Solisyon Recuit: Tout tiyo yo founi nan kondisyon chalè-trete. Tanperati minimòm solisyon an se tipikman 1900 degre F (1040 degre), ki te swiv pa rapid trempe nan dlo oswa lè.
Pickling: Tiyo yo tipikman marinated (dekalye) pou asire yon sifas ki pwòp, ki reziste -kowozyon nan lavni.
Bright Annealing (BA): Si ou vle; bay yon sifas ki tankou glas-pa recuit nan yon atmosfè pwoteksyon.
ASTM A312 Tès estanda ak enspeksyon
Tès idrostatik: Chak tiyo teste pou asire pa gen okenn flit anba presyon (sòf si Eddy Current teste).
Tès Eddy Current: Tès ki pa-destriktif pou domaj sifas ak sub-sifas.
Tès aplani: Fè sou seksyon ki soti nan chak bout tiyo a pou tcheke pou duktilite.
Tès Flaring (pou Tubing): Asire tiyo a ka elaji san fann.
PMI (Idantifikasyon materyèl pozitif): Pou verifye konpozisyon chimik.
Enspeksyon vizyèl ak dimansyon: Pou asire konfòmite ak ASTM A999.
GNEE Nerjaveèi ofri pwodwi ki satisfè estanda ASTM A312 epi ki vini ak yon MTC (Sètifika Tès Materyèl) 3.1, ki deklare ke tout tiyo yo 100% PMI teste.
Ki diferans ki genyen ant ASTM A312 ak ASTM A269?
ASTM A312 (Tiyo): Gwosè pa NPS (Tasè Nominal Tiyo) ak Orè. Li itilize pou transpò likid ak kanalizasyon estriktirèl.
ASTM A269 (Tub): Gwosè pa aktyèl dyamèt deyò (OD) ak epesè miray (WT). Li itilize pou instrumentation, echanjeur chalè, ak tib sèvis jeneral kote dimansyon egzak yo mande yo.
Anba la a se dokiman teknik ASTM A312 nou bay, ke nou espere pral itil nan pwojè ou a. Klike pou jwenn li!
