MōASTM A234 WPB paipa whakaurunga
Ko te ASTM A234 te Whakatakotoranga Paerewa mo nga taputapu paipa rino kei roto ko te waro me nga mea maitai koranu mo nga ratonga ngawari me te teitei.Ka kapi i nga taputapu rino o nga momo tuitui me nga momo paiherea.Ka whakamahia nga taputapu paipa maitai ki roto i nga raina paipa pehanga me nga hangahanga oko pehanga.Ko enei mea whakauru he rino kua mate, he whao, he kaho, he pereti, he paipa kore, he HFW ranei (whakakotahi) nga hua paipa, me te taapiri whakarewa.
He aha te WPB?
W = WELDABLE / mahi
P = E HUNGA AI KI TE TAU P O TE MATERIAL KOROU
B = WHAKATOKANGA KI TE MINIMUM YIELD OF MATERIAL
E wātea ana i roto i te whakahou hou o ASME B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, me MSS-SP-97.Ka whakamahia hoki i roto i te paipa pehanga me te hanga oko pehanga mo te mahi i te pāmahana ngawari me te teitei.Ko nga tohu he ASTM A234 WPB, WPC, WP5, WP9, WP91, WP11, WP12 me WP22.
Whakatakotoranga:
Paerewa: ANSI / ASME B16.9, B16.28, MSS-SP-43.
Awhe Diameter waho: 1/2" ki te 48"
Awhe Matotoru: SCH 10, sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, SCH XXS etc.
Ko nga momo whakauru paipa rino e hanga ana i roto i te hangai, i te miro, i te reke, me te tuitui.
Hanga Matū (%) o ASTM A234
| Kōeke | C | Mn | P | S | Si | Cr | Mo | Ni | Cu | V | Nb |
| WPB | 0.3 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
| WPC | 0.35 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
| WP11 CL1 | 0.05-0.15 | 0.30-0.60 | 0.03 | 0.03 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | - | - | - | - |
| WP11 CL2/3 | 0.05-0.20 | 0.30-0.80 | 0.04 | 0.04 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 | - | - | - | - |
Nga waahanga miihini o ASTM A234
| Nga Whakaritenga Tensile | WPB | WPC, WP11CL2 | WP11CL1 | WP11CL3 |
| Te Kaha Toka, min, ksi[MPa] | 60-85 | 70-95 | 60-85 | 75-100 |
| (0.2% te whakaheke, te 0.5% te toronga-i raro i te kawenga) | [415-585] | [485-655] | [415-585] | [520-690] |
| Kaha Tuku, min, ksi[MPa] | 32 | 40 | 30 | 45 |
| [240] | [275] | [205] | [310] |
A234 WPB Ōrite
| Paipa | Whakapaipai | Karekau | Nga takirere | Porou me Nati |
| ASTM A106 Gr A | ASTM A234 Gr WPA | ASTM A105 | ASTM A216 Gr WCB | A193 Gr B7 A194 Gr 2H |
| ASTM A106 Gr B | A234 Gr WPB | ASTM A105 | ASTM A216 Gr WCB | |
| ASTM A106 Gr C | ASTM A234 Gr WPC | ASTM A105 | ASTM A216 Gr WCB |
(1)Ko te moni o Cu, Ni, Cr, me Mo kaua e neke ake i te 1.00%.
(2)Ko te tapeke o Cr me Mo kaua e neke ake i te 0.32%.
(3)Mo ia whakahekenga o te 0.01% i raro i te C max., he pikinga 0.06% Mn (4)ki runga ake i te max kua tohua.ka whakaaetia, tae noa ki te max.o 1.35%.
(5)Ko te max.ko te waro rite (CE) kia 0.50, i runga i te tātari wera me te (6) tātai CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
Te Rerekētanga i waenganui i A105 me A234
Ko te ASTM A234 WPB Pipe Fittings he mea hanga mai i te waro waro mahi he tino kaha, ka taea te whakamahi i nga whakaritenga kaha.Ko te ASTM A234 WPB he whakamahana wera ka tukuna kia whakamatao tere.
Ko nga Waahanga Whakapaipai Waro he paipa paipa i mahia mai i te Rauemi A105.Ka mahia enei i roto i nga ahuatanga kua oti te whakamaarama, kua whakahoaetia, kua whakamaaramatia, kua whakapourihia ranei.
Wā tuku: Oketopa-08-2021