Fabricante de tuberías de acero sin costura en China - Certificado ASME, EN, DIN
Destacados de Productos
Tubo de supercalentador sin costuras
Para servicios de calderas de alta temperatura – ASME SA213 / SA210
Diámetro exterior 6mm – 256mm | Espesor de la pared 1mm – 18mm
Descripción del producto
Nuestro tubo de supercalentador sin costuras está específicamente diseñado para servicios de alta temperatura en calderas de centrales eléctricas, supercalentadores, recalentadores y intercambiadores de calor de alta presión. Fabricados de acuerdo con las normas ASME SA213 (T11, T22, T91) y ASME SA210 Grado C, estos tubos ofrecen una excelente resistencia a la fluencia, resistencia a la oxidación y resistencia a la fatiga térmica a temperaturas elevadas.
Disponibles en dos familias de materiales:
| Tipo de material | Norma | Calidades | Temperatura máxima | Aplicación |
|---|---|---|---|---|
| Acero de carbono medio | ASME SA210 | Grado C | 900°F (482°C) | Secciones de supercalentador de temperatura baja a media |
| Aleación ferrítica (Cr-Mo) | ASME SA213 | T11, T22, T91 | 1,200°F (650°C) | Supercalentador de alta temperatura, recalentador |
Características principales:
Construcción sin costuras – Sin soldadura – elimina el riesgo de falla por fluencia
Amplia gama de tamaños – DE 6mm a 256mm, EP 1mm a 18mm
Tolerancias de precisión – Control estricto del DE y EP para facilitar el doblado y la soldadura en el campo
Tratamiento térmico – Normalizado (SA210) o normalizado + templado (SA213)
100% probado por NDT – Corriente de Foucault + ultrasonido + ensayo hidrostático
✅ Certificado ASME SA213 / SA210 – Cumplimiento con la Sección II del Código de Calderas y Recipientes de Presión de ASME
✅ Total trazabilidad – EN 10204 Tipo 3.1 MTC con número de lote
✅ Amplia gama de tamaños – 6mm a 256mm DE – Suministro integral
✅ Rendimiento a alta temperatura – Datos de resistencia a la fluencia disponibles para todas las calidades
✅ Curvas en U disponibles – Para diseños de supercalentadores colgantes
✅ Directo de fábrica | Envíos globales
Especificaciones principales
| Parámetro | Detalles |
|---|---|
| Diámetro exterior (DE) | 6mm – 256mm (0.236″ – 10.0″) |
| Espesor de la pared (EP) | 1mm – 18mm (0.039″ – 0.709″) |
| Longitud | 4m – 12m (fija o aleatoria) – hasta 18m a pedido |
| Fabricación | Sin costuras – Laminado a caliente o estirado a frío |
| Normas | ASME SA210 Grado C, ASME SA213 T11/T22/T91, ASTM A213 |
| Acabado de superficie | Negro / Desnudo / Encerado |
| Acabado de extremos | Liso / Cabezote (para soldadura) |
| Tratamiento térmico | Normalizado (SA210) / Normalizado + Templado (SA213 T11/T22/T91) |
Composición química
ASME SA210 Grado C (Acero de carbono medio):
| Elemento | C | Mn | P máximo | S máximo | Si |
|---|---|---|---|---|---|
| Requisito | ≤0.35% | 0.29-1.06% | 0.035% | 0.035% | ≥0.10% |
ASME SA213 T11 (1.25Cr-0.5Mo):
| Elemento | C | Mn | P máximo | S máximo | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Requisito | ≤0.15% | 0.30-0.60% | 0.025% | 0.025% | 0.50-1.00% | 1.00-1.50% | 0.44-0.65% |
ASME SA213 T22 (2.25Cr-1Mo):
| Elemento | C | Mn | P máximo | S máximo | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Requisito | ≤0.15% | 0.30-0.60% | 0.025% | 0.025% | ≤0.50% | 1.90-2.60% | 0.87-1.13% |
ASME SA213 T91 (9Cr-1Mo-V):
| Elemento | C | Mn | P máximo | S máximo | Si | Cr | Mo | V | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|
| Requisito | 0.08-0.12% | 0.30-0.60% | 0.020% | 0.010% | 0.20-0.50% | 8.00-9.50% | 0.85-1.05% | 0.18-0.25% | 0.06-0.10% | 0.030-0.070% |
💡 T91 ofrece una resistencia a la fluencia superior – la calidad más popular para las calderas supercríticas modernas.
Propiedades mecánicas a temperatura ambiente
| Calidad | Resistencia a la tracción (MPa) | Resistencia a la fluencia (MPa) | Alargamiento (%) | Dureza (máx) |
|---|---|---|---|---|
| SA210 Gr.C | ≥485 | ≥275 | ≥30 | 89 HRB |
| SA213 T11 | ≥415 | ≥205 | ≥30 | 85 HRB |
| SA213 T22 | ≥415 | ≥205 | ≥30 | 85 HRB |
| SA213 T91 | ≥585 | ≥415 | ≥20 | 250 HB |
Resistencia a la fluencia a temperatura elevada – Rp0.2 (MPa min)
| Temperatura (°C) | SA210 Gr.C | T11 | T22 | T91 |
|---|---|---|---|---|
| 400 | — | 195 | 195 | 385 |
| 450 | — | 170 | 180 | 380 |
| 500 | — | 145 | 155 | 370 |
| 550 | — | 120 | 130 | 360 |
| 600 | — | — | — | 280 |
💡 T91 mantiene una alta resistencia incluso a 600°C – adecuado para centrales eléctricas ultrasupercríticas.
Tamaños disponibles – DE 6mm a 256mm
| DE (mm) | DE (pulgadas) | EP (mm) | Calidad típica | Aplicación |
|---|---|---|---|---|
| 6 – 16 | 0.236″ – 0.630″ | 1.0 – 2.5 | SA210 Gr.C | Conectores de supercalentador de instrumentación |
| 16 – 32 | 0.630″ – 1.260″ | 1.5 – 4.0 | SA210 Gr.C, T11 | Bobinas de supercalentador de tubo pequeño |
| 32 – 60 | 1.260″ – 2.362″ | 2.0 – 6.0 | T11, T22 | Péndulos de supercalentador de baja temperatura |
| 60 – 89 | 2.362″ – 3.504″ | 3.0 – 8.0 | T22, T91 | Supercalentador de alta temperatura – más común |
| 89 – 114 | 3.504″ – 4.488″ | 4.0 – 10.0 | T91 | Supercalentador final |
| 114 – 168 | 4.488″ – 6.614″ | 5.0 – 12.0 | T91 | Tubos de recalentador |
| 168 – 219 | 6.614″ – 8.622″ | 6.0 – 15.0 | T91 | Cabezales de supercalentador grandes |
| 219 – 256 | 8.622″ – 10.079″ | 8.0 – 18.0 | T91 | Conectores de vapor principal |
💡 El tamaño de tubo de supercalentador más popular: 2″ (50.8mm) DE × 4.0-6.0mm EP – Calidad T91
Guía de selección de calidades – Servicio de supercalentador
| Sección del supercalentador | Temperatura del vapor (°F) | Temperatura del metal (°F) | Calidad recomendada |
|---|---|---|---|
| Supercalentador de baja temperatura | 700-850°F | 750-900°F | SA210 Gr.C |
| Supercalentador intermedio | 850-950°F | 900-1,000°F | T11, T22 |
| Supercalentador de alta temperatura | 950-1,050°F | 1,000-1,100°F | T91 |
| Supercalentador final (supercrítico) | 1,050-1,150°F | 1,100-1,200°F | T91 |
| Supercalentador final ultrasupercrítico | 1,150-1,200°F | 1,200-1,250°F | T91 (límite de calidad) |
💡 Para temperaturas del metal por encima de 1,200°F, utilice acero inoxidable austenítico ASME SA213 TP304H o TP347H.
Principales ventajas – Servicio de supercalentador
| Característica | Beneficio |
|---|---|
| Construcción sin costuras | Sin soldadura – elimina el riesgo de falla por fluencia a alta temperatura |
| Amplia gama de DE | 6mm a 256mm – cubre todos los tamaños de péndulos de supercalentador |
| Múltiples opciones de aleación | SA210 Gr.C (económico) hasta T91 (alta resistencia a la fluencia) |
| Calidad T91 | Resistencia a la fluencia superior – 50-100% más alta que T22 a 1,100°F |
| Tratamiento térmico | Microestructura adecuada para servicios de alta temperatura a largo plazo |
| 100% probado por NDT | Corriente de Foucault + ultrasonido – detecta defectos de superficie que podrían causar falla por fluencia |
| Tolerancias de precisión | DE: ±0.1mm para tamaños |
| U-bend capability | Available for pendant superheater loops |
| Full traceability | EN 10204 3.1 MTC with heat number |
U-Bend Superheater Tubes
| Feature | Capability |
|---|---|
| Minimum bend radius | 1.5× OD (SA210 Gr.C) / 2.0× OD (T91) |
| Maximum tube OD for U-bend | Up to 114mm (4.5″) standard |
| Leg length tolerance | ±1.6mm (±1/16″) |
| Bend angle | 180° standard (custom available) |
| Stress relief | Required after cold bending for T91 |
| Application | Pendant superheater loops |
Quality Assurance & Testing
| Test | Method | Coverage | Critical for Superheater |
|---|---|---|---|
| Eddy Current (ECT) | Non-destructive | 100% | YES – surface defect detection |
| Ultrasonic (UT) | ASTM E213 | 100% (by agreement) | Internal defect detection |
| Hydrostatic Test | Water pressure | 100% | Leak-proof coils |
| Tensile Test | ASTM E8 | Per heat | Strength verification |
| Hardness Test | Rockwell/Brinell | Per lot | T91 ≤250 HB |
| Flattening Test | Ductility | Per lot | Bendability for U-tubes |
| Flaring Test | Expansion | Per lot | End integrity for welding |
| Dimensional Inspection | Micrometer | 100% | Tube-to-baffle fit |
Bending & Welding Recommendations
Bending (T91):
Minimum bend radius: 2.0 × OD
Stress relief after cold bending: Required
Hot bending temperature: 1,600-1,800°F (870-980°C)
Welding (T91):
Preheat temperature: 200-260°C (400-500°F)
PWHT required: Yes
Filler metal: ER90S-B9 (9Cr filler)
Post-weld cooling: Slow cool (cover with insulation)
⚠️ T91 requires strict preheat and PWHT to prevent hydrogen cracking and maintain creep life.
Mill Test Certificate
ASME SA213 / SA210 Certificate of Compliance – Standard
EN 10204 Type 3.1 MTC – Provided with heat number
EN 10204 Type 3.2 – Available upon request (SGS, BV, TUV, DNV)
Heat treatment records – Normalizing, tempering temperatures
NDT reports – 100% eddy current + UT (if specified)
Traceability: Full traceability from melt to finished tube
Packaging & Shipping
| Item | Details |
|---|---|
| Packaging | Hexagonal bundles with steel strapping |
| Protection | Anti-rust oil + plastic end caps (carbon steel) |
| Alloy grades | Plastic caps + protective paper |
| Marking | Stencil: Grade, size, heat number, standard, heat treat condition |
| Documentation | MTC + NDT reports + heat treatment records |
| Lead time | 15-25 days (SA210 Gr.C, T11), 25-35 days (T22, T91) |
| Port | Tianjin / Shanghai / Guangzhou |
Why Choose Our Seamless Superheater Tubes?
| Advantage | Description |
|---|---|
| Wide size range | 6mm to 256mm OD – one-stop sourcing |
| Full grade range | SA210 Gr.C, SA213 T11, T22, T91 – match to temperature |
| T91 in stock | Most popular supercritical grade – ready to ship |
| 100% ECT tested | Critical for superheater reliability |
| Heat treated | Normalized + tempered for alloy grades |
| U-bend capability | Pendant superheater loops available |
| Full traceability | EN 10204 3.1 MTC with heat number |
| Global export | Shipped to power plants worldwide |
Contact for Quote
Please provide the following details:
Grade : SA210 Gr.C / SA213 T11 / T22 / T91
OD (mm) : _______
WT (mm) : _______
Length (m) : _______
U-bend required? : Yes / No
Quantity : _______ (pieces / meters / tons)
Steam temperature : _______ °F / °C
Inspection : Standard / Third-party (SGS/BV/TUV/DNV)
📧 Email: yjhtrade@gmail.com
📞 WhatsApp: +86 15106174543
🌐 Website: www.wuxihengzhihui.com
Reply within 24 hours.
FAQ – Seamless Superheater Tube
Q1: What is the difference between SA210 Gr.C and SA213 T91 for superheater service?
A: SA210 Gr.C – medium carbon steel, up to 900°F, economical for low temperature sections. SA213 T91 – 9Cr-1Mo-V alloy, up to 1,200°F, superior creep strength for high temperature superheaters.
Q2: What is the most common superheater tube size?
A: 2″ OD (50.8mm) × 4.0-6.0mm WT – industry standard for high temperature pendant superheaters.
Q3: Can SA210 Gr.C be used for superheater service?
A: Yes, for low temperature superheater sections (steam temperature
Q4: What is the maximum size available?
A: 256mm (10″) OD – suitable for large reheater tubes and superheater headers.
Q5: Does T91 require special bending?
A: Yes – minimum bend radius 2× OD and stress relief after cold bending are required.
Q6: Do you provide third-party inspection?
A: Yes. SGS, BV, TUV, DNV, or any customer-specified agency.
Q7: Do you offer free samples?
A: 30cm sample available for common grades (SA210 Gr.C, T91). Shipping fee applies.
Related Products
ASME SA213 T91 – High strength superheater tube (this product)
ASME SA210 Gr.C – Medium carbon superheater tube (low temp)
ASME SA213 T22 – 2.25Cr-1Mo superheater tube
ASME SA335 P91 – Alloy steel pipe for superheater headers
ASME SA213 TP347H – Austenitic stainless for ultra-supercritical
Tags: Seamless Superheater Tube SA213 T91 Superheater Tube Power Plant Boiler Tube ASME SA210 High Temperature Tube
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| 6*1*1.5*2*2.5 | 121*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38 |
| 8*1*1.5*2*2.5 | 127*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38 |
| 10*1*1.5*2*2.5*3 | 133*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40 |
| 12*1*1.5*2*2.5*3 | 140*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42 |
| 14*1*1.5*2.5*3*3.5 | 146*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42 |
| 16*1*1.5*2*2.5*3*3.5*4*4.5*5 | 152*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50 |
| 18*1*1.5*2*2.5*3*3.5*4*4.5*5 | 159*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50 |
| 20*1*1.5*2*2.5*3*3.5*4*4.5*5*6 | 168*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50 |
| 22*1*1.5*2*2.5*3*3.5*4*4.5*5*6 | 180*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50 |
| 25*2*2.5*3*3.5*4*4.5*5*6 | 194*6*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55 |
| 28*2*2.5*3*3.5*4*4.5*5*6*8 | 203*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60 |
| 30*2*2.5*3*3.5*4*4.5*5*6*8 | 219*6*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60*65*70 |
| 32*2*2.5*3*3.5*4*4.5*5*6*8 | 232*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60*65*70 |
| 34*2*2.5*3*3.5*4*4.5*5*6*8 | 245*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60*65*70 |
| 38*2*2.5*3*3.5*4*4.5*5*6*8*10*12 | 273*6.5*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60*65*70*75*80 |
| 40*3*3.5*4*4.5*5*6*8*10*12 | 299*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*50*55*60*65*70*75*80*100 |
| 42*3*3.5*4*4.5*5*6*8*10*12 | 325*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*75*80*100 |
| 45*3*3.5*4*4.5*5*6*8*10*12*14 | 351*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*75*80*100 |
| 48*3*3.5*4*4.5*5*6*8*10*12*14 | 377*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*75*80*100 |
| 50*3*3.5*4*4.5*5*6*8*10*12*14*15*16 | 402*7*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*100*110 |
| 51*3.5*4*4.5*5*6*8*10*12*14*15*16 | 406*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*70*75*80*90*100*110 |
| 54*3.5*4*4.5*5*6*8*10*12*14*16 | 426*8*10*12*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*75*80*120*130 |
| 57*3.5*4*4.5*5*6*8*10*12*14*16 | 450*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*48*50*55*75*80*90*100*110*120 |
| 60*3.5*4*4.5*5*6*8*10*12*14*16*18*20 | 457*8*10*12*14*20*22*25*28*30*32*35*38*40*42*45*48*50*55*60*65*70*75*130*140*150 |
| 63.5*3.5*4*4.5*5*6*8*10*12*14*16*18*20 | 480*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*50*55*60*100*110*120*130*140*150 |
| 65*3.5*4*4.5*5*6*8*10*12*14*16*18*20 | 500*8*10*12*14*16*18*20*22*25*28*30*32*35*38*40*42*45*55*60*65*70*75*80*90*100*110 |
| 68*3.5*4*4.5*5*6*8*10*12*14*16*18*20 | 508*8*10*12*14*16*18*20*22*25*28*30*32*35*45*48*50*55*90*100*110*120*130*140*150 |
| 70*3.5*4*4.5*5*6*8*10*12*14*16*18*20*22 | 530*8*10*12*14*16*18*20*22*25*28*30*32*35*38*48*50*55*90*100*110*120*130*140*150 |
| 73*3.5*4*4.5*5*6*8*10*12*14*16*18*20*22 | 560*8*10*12*14*16*1828*30*32*35*38*40*42*45*48*80*90*100*110*120*130*140*150 |
| 76*3.5*4*4.5*5*6*8*10*12*14*16*18*20*22*25 | 580*10*12*14*16*18*25*28*30*32*35*38*40*42*45**60*65*70*75*80*90*100*110*120*130 |
| 80*4*4.5*5*6*8*10*12*14*16*18*20*22*25 | 600*10*12*14*16*22*25*28*30*32*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 83*4*4.5*5*6*8*10*12*14*16*18*20*22*25 | 610*10*14*16*18*22*25*28*30*32*35*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 89*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28 | 630*10*12*14*16*22*25*28*30*48*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 95*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30 | 700*10*12*14*16*22*40*42*45*48*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 102*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32 | 710*10*12*14*16*18*40*42*45*48*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 108*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32 | 720*10*12*14*16*18*20*22*25*28*30*50*55*60*65*70*75*80*90*100*110*120*130*140*150 |
| 114*4*4.5*5*6*8*10*12*14*16*18*20*22*25*28*30*32 | 760*10*12*20*22*25*28*30*50*55*60*65*70*75*80*90*100*110*120*130*140*150*200 |
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