Descrição
Encaixe de tubo para soldagem de topo feito de fábrica
ASTM A420 WPL6 Low Temperature Pipe Cap
A butt-welded pipeline closure for low-temperature carbon steel systems, supplied against the ordered impact test, heat treatment and traceability requirements.
O que é um ASTM A420 WPL6 low-temperature pipe cap?
Um ASTM A420 WPL6 pipe cap is a wrought low-temperature carbon steel fitting used to close the end of a butt-welded pipeline. It is selected when the design specification requires carbon steel fitting toughness at a stated low temperature rather than the general moderate-temperature service associated with ASTM A234 WPB.
WPL6 should not be treated as a generic cryogenic alloy. Allowable design temperature and suitability depend on the ordered heat treatment, impact test temperature and results, espessura da parede, piping code and complete service conditions. These requirements must be confirmed before manufacture.
A420 WPL6 low-temperature cap specifications
| Tipo de produto | Low-temperature carbon steel butt weld pipe cap |
|---|---|
| Especificação de materiais | ASTM A420 WPL6 |
| Padrão dimensional | ASME B16.9 |
| Tamanho nominal | NPS 1/2–48 / DN15–DN1200, sujeito à parede e rota de fabricação |
| Espessura da parede | Horários padrão, heavy wall, XXS e parede específica do projeto |
| Construção | Sem costura ou soldado conforme aplicável e solicitado |
| Tratamento térmico | Conforme ASTM A420 and the ordered project requirements |
| Teste de impacto | Temperatura de teste, specimen requirements and acceptance criteria must be stated or confirmed from the applicable specification |
| Preparação final | Butt-weld bevel to the matching pipe wall and welding detail |
| Documentação | EN 10204 3.1 CTM, heat-treatment and impact-test records, dimensional and NDE reports as ordered |
Dimensões e tolerâncias seguem padrão e edição solicitada. A adequação final da pressão-temperatura é determinada pelo código de projeto da tubulação, material, espessura da parede, condições de tubulação e serviço correspondentes.
Requisitos ASME e projetos europeus
Projetos norte-americanos
Especificar ASTM A420 WPL6, ASME B16.9, NPS, agendar, construção, tratamento térmico, impact test temperature and acceptance criteria, plus any supplementary NDE or sour-service restrictions.
Projetos europeus
Specify the required EN low-temperature steel grade and product standard if the project is EN-based. Incluir DN, parede, temperatura mínima de projeto, impact criteria, regulatory requirements and EN 10204 tipo de certificado.
A420 WPL6 vs A234 WPB pipe cap
| Ponto de seleção | ASTM A420 WPL6 | ASTM A234 WPB |
|---|---|---|
| Service focus | Tubulação de aço carbono para baixa temperatura | Moderado- e tubulação de aço carbono para temperaturas elevadas |
| Impact toughness | Ordered low-temperature impact testing is central to material qualification | Project or code impact testing must be considered separately |
| Documentation focus | Heat treatment and impact test records | Química, mechanical properties and general inspection records |
| Seleção típica | Refrigerated process, cold climate and low-temperature utilities | Óleo, gás, vapor, power and general process service |
Aplicações típicas
| Indústria | Serviço típico | Motivo da seleção |
|---|---|---|
| Low-temperature process | Cold hydrocarbon and process utility closures | Specified impact toughness at the ordered temperature |
| Refrigeração | Industrial refrigeration auxiliaries and headers | Low-temperature carbon steel material route |
| Instalações para clima frio | Outdoor process and utility systems | Project-defined toughness and traceability |
| LPG/LNG support systems | Selected non-cryogenic auxiliaries within qualified temperature limits | Carbon steel solution where the design specification explicitly permits WPL6 |
Exemplos de aplicação são apenas para orientação. O engenheiro do projeto deve confirmar a compatibilidade do material, tolerância à corrosão, requisitos de impacto e conformidade com o código de design.
Fabricação, inspeção e documentação
WPL6 production and release require careful control of raw material, tratamento térmico, impact specimens, test temperature and traceability. The manufacturer must receive the complete minimum-design-temperature and acceptance requirements before confirming supply.
Temperatura de teste, specimen orientation, size and absorbed-energy criteria reviewed against the order.
Treatment route and batch traceability linked to the material certificate.
Cap geometry, parede, bevel and specified NDE verified before release.
CTM, resultados de impacto, heat treatment and inspection records compiled as ordered.
Lista de verificação de RFQ
- Classe do material e especificação do produto
- Padrão dimensional e edição
- Tamanho NPS ou DN
- Programação do tubo ou espessura exata da parede
- Construção sem costura ou soldada, quando necessário
- Preparação final e detalhe do chanfro
- Quantidade e destino de entrega
- CTM, Requisitos de inspeção NDE e de terceiros
Perguntas frequentes
O que é ASTM A420 WPL6 used for?
It is a low-temperature carbon steel fitting grade used where the piping specification requires verified toughness at a defined low temperature.
What is the minimum service temperature of WPL6?
A single universal service limit should not be assigned without the applicable piping code, tratamento térmico, wall thickness and ordered impact test data. Confirm the project minimum design metal temperature and acceptance requirements.
Is WPL6 a cryogenic stainless steel?
Não. WPL6 is a low-temperature carbon steel fitting grade. True cryogenic services may require austenitic stainless steel or nickel alloy selected by the project engineer.
What documents prove low-temperature qualification?
The data package commonly includes the MTC, heat-treatment record and impact-test report showing specimen details, test temperature and results, plus traceability to the fitting heat or batch.
Can heavy-wall WPL6 caps be supplied?
Sim, subject to a technical review of size, parede exata, formando rota, heat treatment and impact specimen requirements.
Request an A420 WPL6 pipe cap quotation
Include the minimum design temperature, impact test requirement, tamanho, parede, quantity and documentation package for an accurate offer.
Solicite um orçamentoVeja as tampas das extremidades dos tubos
