ASTM vs ASME Pipe Standards: Dab tsi yog qhov txawv thiab vim li cas nws tseem ceeb

Tus neeg twg uas tau teev tseg, yuav, lossis ntsia hlau yeeb nkab tau ntsib ob lub npe uas paub: ASTM thiab ASME. Ob qho tib si tshwm sim ntawm cov ntawv xeem zeb, cov ntawv cim khoom, thiab cov duab kos duab engineering. Ob leeg zoo li cuam tshuam rau cov qauv. Thiab ob qho tib si feem ntau siv sib pauv tau - tsis raug.

Qhov tsis meej pem yog nkag siab. Ob lub koom haum qhia txog keeb kwm ntev thiab sib koom tes ntawm ntau cov ntaub ntawv. Tab sis lawv ua hauj lwm hauv paus ntsiab lus sib txawv. Kev sib xyaw ua ke tuaj yeem ua rau kev txiav txim cov khoom tsis raug, tsis ua tiav kev soj ntsuam, lossis tsim kom muaj kev nyab xeeb. Phau ntawv qhia no piav qhia txog qhov sib txawv ntawm cov ntsiab lus, yog li koj tuaj yeem ntseeg tau cov kev qhia tshwj xeeb thiab kev yuav khoom.

ASTM International: Cov Qauv Khoom Siv

ASTM International (yav tas los American Society for Testing and Materials) tsim cov qauv kev cob qhia rau ntau yam khoom siv, suav nrog hlau, yas, thiab cov khoom sib xyaw. Rau cov yeeb nkab, ASTM cov qauv txhais cov khoom nws tus kheej - nws cov chemistry, mechanical properties, dimensions, and manufacturing processes.

Thaum koj qhia ASTM A53 lossis ASTM A106, koj tab tom qhia txog qib ntawm cov yeeb nkab steel nrog cov tshuaj lom neeg tshwj xeeb, lub zog tensile, lub zog tawm los, thiab kev tso cai tsim khoom (seamless lossis welded). ASTM qhia koj tias cov yeeb nkab yog dab tsi thiab nws yuav tsum ua li cas.

Piv txwv ntawm ASTM Pipe Standards:

ASTM cov qauv yog cov ntaub ntawv pom zoo. Lawv sawv cev rau kev lag luam- pom zoo txoj hauv kev rau kev sim thiab qhia cov ntaub ntawv. Lawv tsis yog kev cai lij choj, tab sis lawv tau hais los ntawm cov cai hauv tsev, tsoomfwv cov cai, thiab cov phiaj xwm tshwj xeeb.

ASME: Cov Khoom Siv Hluav Taws Xob thiab Cov Cai Tsim Kho

ASME (American Society of Mechanical Engineers) tsim cov cai thiab cov qauv uas suav nrog kev tsim, tsim, tshuaj xyuas, kuaj, thiab kev teeb tsa ntawm cov tshuab tshuab-tshwj xeeb yog cov uas raug kev nyuaj siab.

Cov nto moo tshaj plaws yog ASME Boiler thiab Pressure Vessel Code (BPVC), Tshooj VIII, uas tswj hwm kev tsim thiab tsim cov hlab ntsha siab.

Rau piping, ob cov ntaub ntawv tseem ceeb yog:

ASME cov lej tsis qhia koj tias cov khoom siv twg siv -lawv siv ASTM cov qauv rau qhov ntawd. Xwb, ASME qhia koj yuav ua li cas los tsim lub system (phab ntsa thickness xam, kev ntsuas siab), yuav ua li cas fabricate nws (welding txheej txheem, kev sib koom tsim), yuav ua li cas los soj ntsuam nws (NDE yuav tsum), thiab yuav ua li cas mus ntsuam xyuas (hydrostatic test). ASME yog hais txog kev tsim kho thiab kev nyab xeeb.

Qhov Tseem Ceeb Qhov txawv hauv Ib kab lus

ASTM txhais cov yeeb nkab yog dab tsi; ASME txhais tau hais tias yuav ua li cas thiaj li siv tau zoo hauv lub zog siab.

Xav txog qhov no:

ASTM zoo li daim ntawv qhia ua hlau.

ASME zoo li lub tsev cai rau kev tsim kom muaj kev nyab xeeb lub nkoj lossis cov kav dej siv cov hlau ntawd.

Lawv ua hauj lwm ua ke li cas

Ib qho kev qhia tshwj xeeb yuav raug nyeem: "Carbon steel yeeb nkab yuav tsum yog ASTM A106 Qib B, fabricated thiab ntsia raws li ASME B31.3."

Qhov no txhais tau tias:

Cov yeeb nkab nws tus kheej yuav tsum ua tau raws li cov khoom siv ntawm ASTM A106 Qib B.

Tag nrho cov kav dej yuav tsum tau tsim, welded, tshuaj xyuas, thiab sim ua raws li cov cai ntawm ASME B31.3.

Ob tus qauv tsis yog lwm txoj hauv kev-lawv yog qhov sib ntxiv. Ib qho txhais cov khoom siv, lwm tus txhais cov cai rau kev siv nws yam xyuam xim.

Yog vim li cas qhov tsis meej pem nyob mus li

Ntau yam ua rau muaj kev nkag siab tsis zoo:

Overlapping Terminology
ASME qee zaum txais cov qauv ASTM los ntawm kev siv. Piv txwv li, ASME Tshooj II (Cov Khoom Siv) teev ASTM cov lus qhia tshwj xeeb uas tau txais los siv rau hauv ASME-cov qauv tsim. Qhov no ua rau muaj kev xav tias ASME thiab ASTM sib hloov tau.

Pawg Neeg Koom Tes
Ob lub koom haum tau ua haujlwm ua ke tau ntau xyoo lawm. Qee cov qauv muaj ob qho kev xaiv ASME thiab ASTM, txawm tias qhov no tsis tshua muaj niaj hnub no.

Keeb Kwm Keeb Kwm
Cov qub engineers thiab cov neeg cog lus feem ntau siv cov ntsiab lus xoob, thiab tus cwj pwm tau coj mus tom ntej. Nws tsis yog qhov tsis yooj yim uas hnov ​​"ASME yeeb nkab" thaum tus hais lus txhais tau tias "ASTM yeeb nkab uas ua tau raws li ASME cov cai."

Supplier Catalog Xyaum
Cov neeg muag khoom feem ntau sau "ASTM / ASME" ntawm cov ntaub ntawv cov khoom, qhia tias ob qhov sib npaug. Qhov tseeb, lawv tau hais tias cov khoom ua tau raws li tus qauv ASTM thiab tau txais kev tsim kho ASME.

Yog vim li cas nws tseem ceeb hauv kev xyaum

Kev yuav khoom
Yog tias koj xaj "ASME yeeb nkab," tus neeg muag khoom yuav tsis paub qhov koj xav tau. ASME tsis tshaj tawm cov yeeb nkab ib leeg. Koj yuav tsum qhia tus qauv ASTM. Kev xaj cov khoom tsis raug tuaj yeem ncua ib qhov project los ntawm lub lis piam.

Kev Ua Raws Cai
Ntau qhov kev txiav txim siab yuav tsum tau ua raws li ASME code rau cov kav dej siab. Kev siv ASTM- cov kav dej tus qauv uas tsis tso cai los ntawm ntu ASME cov lej siv tau tuaj yeem ua rau kev kuaj tsis tau. Tus neeg soj ntsuam yuav nug txog cov ntaub ntawv pov thawj thiab xyuas nws tawm tsam cov cai.

Kev nyab xeeb
Tsim kom muaj lub zog siab yuav tsum muaj cov khoom siv zoo. ASTM cov qauv muab cov khoom no (yield zog, tso cai rau kev ntxhov siab). ASME siv cov khoom no hauv nws cov qauv tsim. Yog tias koj siv cov khoom uas tsis tau teev nyob rau hauv ASME code, tsis muaj kev pom zoo rau kev suav cov phab ntsa tuab.

Common Scenarios thiab Yuav Ua Li Cas Rau Lawv

Scenario 1: Qhia cov yeeb nkab rau cov nroj tsuag tshuaj tshiab
Koj yuav qhia ob qho tib si ASTM cov ntaub ntawv (A312 rau stainless, A106 rau carbon) thiab ASME kev tsim cai code (zoo li B31.3 rau cov txheej txheem kav). ASTM tus qauv mus rau kev yuav khoom; ASME code tswj kev tsim thiab tshuaj xyuas.

Scenario 2: Hloov ib ntu ntawm cov yeeb nkab hauv qhov system uas twb muaj lawm
Tshawb xyuas qhov qub specifications. Yog tias lub kaw lus tau tsim rau ASME B31.1 (lub zog kav dej), cov khoom siv hloov pauv yuav tsum ua tau raws li qib ASTM thaum xub thawj tau teev tseg thiab yuav tsum tau teeb tsa rau tib txoj cai ASME. Kev siv ASTM qib sib txawv tuaj yeem ua txhaum cai.

Scenario 3: Hluav taws kub sprinkler system
NFPA 13 hais txog ASTM cov qauv rau cov khoom siv yeeb nkab (xws li A795). Nws kuj hais txog ntau yam qauv rau fittings thiab li qub. ASME tsis tshua muaj qhov tseem ceeb ntawm no tshwj tsis yog tias lub kaw lus poob rau hauv cov cai ntawm cov hlab ntsha. Rau feem ntau cov tshuab nqus dej, ASTM dominates.

Scenario 4: Siab hlab ntsha nozzles
Lub plhaub ntawm lub nkoj tuaj yeem ua rau ASME Tshooj VIII, Div. 1. Cov khoom siv yuav yog ASTM specification, thiab vuam rau ASME Tshooj IX. Txhua tus yuav tsum ua raws li ASME code.

Ceev Reference: Qhov Chaw Saib

Xaus

ASTM thiab ASME tsis yog cov neeg sib tw. Lawv ua haujlwm rau ob qhov sib txawv tab sis sib npaug ntawm lub luag haujlwm tseem ceeb hauv kev lag luam piping. ASTM qhia koj tias cov yeeb nkab yog dab tsi yog ua los ntawm -chemistry, lub zog, thiab qhov ntev. ASME qhia koj yuav ua li cas tsim, tsim, thiab sim ib qho kev nyab xeeb siv cov yeeb nkab.

Paub qhov txawv tsis yog qhov tsis tseem ceeb xwb. Nws ua kom koj xaj cov khoom tsim nyog, ua raws cov cai siv tau, thiab zam kev ua yuam kev kim. Thaum tsis ntseeg, nco ntsoov hais txog tus lej tus qauv (piv txwv li, ASTM A106 Qib B, ASME B31.3) es tsis txhob cia siab rau cov npe koom haum.

Xav Tau Kev Pab Qhia Cov Lus Qhia rau Koj Qhov Haujlwm?

Peb pab neeg ua haujlwm nrog ASTM thiab ASME cov qauv txhua hnub. Peb muab cov yeeb nkab thiab fittings uas ua tau raws li ntau yam ntawm ASTM specifications thiab haum rau ASME -coded siv. Yog tias koj tsis paub meej tias tus qauv twg siv rau koj daim ntawv thov, peb tuaj yeem pab koj qhia meej.

Tiv tauj pebrau kev pab cuam lossis thov cov ntaub ntawv pov thawj rau koj qhov kev txiav txim tom ntej.