ʻO ka laulā o ASTM A106 a me ASTM A53:
Hoʻopili ka ASTM A53 kikoʻī i nā ʻano hana hana paipu kila i ka seamless a welded, mea i ke kila kalapona, ke kila ʻeleʻele.ʻO ka ili maoli, ʻeleʻele, a me ka paipu kila i uhi ʻia me ka zinc.Aia nā anawaena mai ka NPS 1⁄8 a hiki i ka NPS 26 (10.3mm a 660mm), ka mānoanoa o ka pā.
Ua uhi ʻia nā kikoʻī maʻamau ʻo ASTM A106paipu kila ʻole kalapona, noi no nā lawelawe wela wela.
Nā ʻano like ʻole a me nā māka no nā maʻamau ʻelua:
No ka ASTM A53, aia nā paipu kila ERW a me nā ʻano ʻano F, E, S i uhi ʻia i ka Papa A a me B.
A53 ʻAno F, i hoʻopaʻa ʻia i ka umu ahi, wili mau i ka Papa A
A53 ʻAno E, Uila hoʻopaʻa ʻia (RW), ma ka Papa A a me ka Papa B.
A53 ʻAno S, paipu kila ʻole, ma ka Papa A a me ka Papa B.
Inā hoʻolei mau ʻia nā mea kila maka o nā māka like ʻole, e ʻike ʻia ka hopena mea hoʻololi.A pono e wehe ka mea hana i ka mea hoʻololi me nā kaʻina hana e hiki ke hoʻokaʻawale i nā māka maikaʻi.
Inā he paipu ASTM A53 Grade B ma ERW (electric resistance welded), e hana ʻia ka wili weld i ka mālama wela me ka liʻiliʻi o 1000°F [540°C].Ma kēia ala, ʻaʻohe martensite untempered koe.
Inā hoʻonui ʻia ka paipu ASTM A53 B i ke anuanu, a laila ʻaʻole pono ka hoʻonui ʻana ma mua o 1.5% o ka OD i koi ʻia.
No ka paipu kila ASTM A106, ʻano hana ʻano ma ka seamless, kaʻina hana wela a huki ʻia ke anu.Papa ma A, B a me C.
ASTM A106 Papa A: ʻElemu Carbon kiʻekiʻe loa 0.25%, Mn 0.27-0.93%.ʻO ka ikaika tensile liʻiliʻi 48000 Psi a i ʻole 330 Mpa, ʻoi aku ka ikaika 30000 Psi a i ʻole 205 Mpa.
A106 Papa B: Kiekie C ma lalo o 0.30%, Mn 0.29-1.06%.ʻO ka ikaika tensile liʻiliʻi 60000 Psi a i ʻole 415 Mpa, e hāʻawi i ka ikaika 35000 Psi a i ʻole 240 Mpa.
Papa C: Kiekie C 0.35%, Mn 0.29-1.06%.ʻO ka ikaika tensile liʻiliʻi he 70000 Psi a i ʻole 485 Mpa, hoʻoulu i ka ikaika 40000 Psi a i ʻole 275 Mpa.
ʻokoʻa meASTM A53 GR.B paipu kila ʻole,ASTM A106 GR.B paipu kila maʻemaʻeLoaʻa iā Si min 0.1%, ʻo A53 B he 0, no laila ʻoi aku ka maikaʻi o ka pale wela o A106 B ma mua o A53 B, no ka mea, ua hoʻomaikaʻi ʻo Si i ke kūpaʻa wela.
Nā wahi noi o nā mea ʻelua:
Hoʻohana ʻia nā paipu ʻelua no nā ʻōnaehana mechanical a me ke kaomi, ka lawe ʻana i ka mahu, ka wai, ke kinoea, a pēlā aku.
Ke noi paipu ASTM A53:
1. Ke kūkulu ʻana, ka lawe ʻana ma lalo o ka honua, ka ʻohi ʻana i ka wai o ka honua i ke kūkulu ʻana, ka halihali wai mahu etc.
2. Nā hoʻonohonoho bearing, nā ʻāpana mīkini hana.
3. Hoʻohana uila: Hoʻouna kinoea, wai mana wai hoʻoheheʻe wai pipeline.
4. makani mana mea kanu anti-static paipu etc.
5. ʻO nā paipu e pono ai ke uhi ʻia i ka zinc.
Ke noi paipu ASTM A106:
No nā lawelawe wela wela a hiki i 750 ° F, a hiki iā ia ke hoʻololi i ka paipu ASTM A53 i ka hapa nui o nā hihia.Ma kekahi ʻāina ma ʻAmelika Hui Pū ʻIa, ʻo ka maʻamau ʻo ASTM A53 no ka paipu welded a ʻo ASTM A106 no nā paipu kila ʻole.A inā noi ka mea kūʻai iā ASTM A53 e hāʻawi pū lākou iā ASTM A106.Ma Kina, e hāʻawi ka mea hana i ka paipu e hoʻokō i nā kūlana ʻekolu ASTM A53 GR.B/ASTM A106 GR.B/API 5L GR.B nā paipu kila ʻole.
Ka manawa hoʻouna: Jul-11-2023