Tubo para presión de caldera (Alto/Medio/Bajo)
Medidas (D.E. x E.): Desde 6 x 1mm hasta 630 x 60mm.
Normas: GB 5310, 3087; DIN 17175; ASME SA192, SA106, SA209, SA210, SA213, SA556; Q/BQB 201.
| NORMA | Diámetro exterior | Espesor de Pared | Tolerancia |
|---|---|---|---|
| diam (mm) | S (mm) | ||
| ≤130 | S≤2·Sn | +15%,-10% | |
| 2·Sn | +12.5%,-10% | ||
| S>4·Sn | ±9% | ||
| DIN17175 | >130 | S≤0.05da | +15%，-10% |
| Q/BQB201 | 0.05da | ±12.5% | |
| S>0.11da | ±10% | ||
| GB3087 | -- | 3-20 | +12.5%,-15% |
| >20 | ±10% | ||
| GB5310 | -- | <3.5 | +15% (MAX+0.48 mm) -10% (MIN-0.32 mm) |
| 3.5-20 | +15%,-10% | ||
| >20 | ±10% | ||
| ASME SA450 | -- | 2.4-3.8 | +35%,-0% |
| >3.8-4.6 | +35%,-0% | ||
| >4.6 | +23%,-0% | ||
| ASME SA530 | -- | -- | ±12.5% |
Tolerancia diámetro exterior
| NORMA | Diámetro exterior (mm) | Tolerancia |
|---|---|---|
| DIN17175 Q/BQB201 |
≤100 | ±0.75% (min=0.5mm) |
| >100 | ±0.98% | |
| GB3087 | ≤159 | 0.0025 |
| GB5310 | ≤50 | ±0.5 (mm) |
| >50 | ±1.0% | |
| ASME SA450 | ≤101.6 | +0.4 -0.8 (mm) |
| >101.6-190.5 | +0.4 -1.2 (mm) | |
| ASME SA530 | ≤48.3 | +0.4 -0.8 (mm) |
| >48.3-114.3 | ±0.8 (mm) | |
| >114.3 | +1.6 -0.8 (mm) |
Grados comúnmente usados
| NORMA | Grado |
|---|---|
| GB3087 | 10, 20 |
| DIN17175 Q/BQB201 |
St35.8, Sr45.8, 15Mo3, 13CrMo44, 10CrMo910, 14MoV63, 12Cr1MoV |
| GB5310 | 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB |
| ASMESA192 | SA192 |
| ASMESA106 | SA106-B, SA106-C |
| ASMESA556 | SA556-C2 |
| ASMESA210 | SA210-A1, SA210-C |
| ASMESA209 | SA209-T1a |
| ASMESA213 | SA213-T12, SA213-T22 |
Aplicaciones
- Para la fabricación de calderas de baja / media / alta y una presión más alta
- Paneles de refrigeración por agua
- Dispositivos de ahorro de carbón
- Repetidores
- Recalentadores de vapor
- Tuberías