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Placas de calidad de la caldera
Mehta acciona el accionista de placas bq:
Las placas de calidad de la caldera también más comúnmente llamadas como placas de caldera son aquellas placas de acero suave con composición química y propiedades mecánicas que hacen que estas placas bq sean capaces de soportar altas temperaturas y fuertes presiones. Las placas de la caldera se utilizan en diversas aplicaciones de alta temperatura tales como calderas del vapor, calderas hechas del acero suave, recipientes de presión, pipas comunes de la pluma, balas del LPG, son algunos de los ejemplos.
Los aceros Mehta son los más abundantes en placas BQ probadas según la norma IS 2002 GR.II, IS 2002 Gr.III, IS 2041 R 220, IS 2041 R 260.
Algunos de los grados comunes que están disponibles fácilmente en existencias son IS 2002 Gr.II y ASTM A 516 Gr.70 grado equivalente IS 2041 R 260.
Los tamaños comunes de placas b.q. disponibles en stock con aceros Mehta son:
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THICK (mm)WIDTH (mm)LENGTH (mm)
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615006300
-
815006300
-
1015006300
-
10.2250012500
-
12250012500
-
14250012500
-
16250012500
-
18250012500
-
20250012500
-
22250012500
-
25250012500
-
28250012500
-
30250012500
-
32250012500
-
36250012500
-
40250012500
-
45250010000
-
50250010000
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6325006300
-
7025006300
-
7525006300
-
8025005000
-
9025005000
-
10025005000
Las calidades comunes de las placas de calidad de la caldera en la acción con los aceros de Mehta son:
- IS 2002-1 or IS 2002 Gr. I
- IS 2002-2 or IS 2002 Gr. II
- IS 2002-3 or IS 2002 Gr. III
- IS 2041R220
- IS 2041R260
- IS 2041R355
Placas de calidad de los recipientes a presión y placas de calidad de la caldera:
Uso y tabla de grado equivalente de placas bq
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Description of useIS standard No and gradeNear Equivalent Non IS Specification
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IS 2002 Grade 1ASTM/ASME 515 Gr.60
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For intermediate and
high temperatureIS 2002 Grade 2ASTM/ASME 515 Gr.65 -
IS 2002 Grade 3ASTM/ASME 515 Gr.70
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IS 2041 Grade R 220ASTM/ASME 516 Gr.55
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IS 2041 Grade R 220ASTM/ASME 516 Gr.60
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IS 2041 Grade R 260ASTM/ASME 516 Gr.65
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IS 2041 Grade R 260ASTM/ASME 516 Gr.70
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For moderate & low temperatureIS 2041 Grade R 355ASTM/ASME 537 Class 1
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IS 2041 Grade H 235DIN 17155 Gr HI
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IS 2041 Grade H 235EN 10028-P2-P235GH
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IS 2041 Grade H 265EN 10028-P2-P265GH
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IS 2041 Grade H 295EN 10028-P2-P295GH
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IS 2041 Grade H 355EN 10028-P2-P355GH
Código de acero para productos planos de acero laminado en caliente
Mandatory tdc for supply of bq plates
| MANDATORY TECHNICAL DELIVERY CONDITIONS FOR BQ PLATES | ||
| MANDATORY REQUIREMENTS FOR BOILER QUALITY GRADES | ||
| Nomenclature | Mandatory TDC As per Specification | Mandatory TDC As per Process requirement |
| IS 2002-1 | Normalized for >= 12 mm Tensile test + Bend test |
Vacuum degassing for >= 40 mm Above 40 mm, thickness tolerance as per mutual agreement. |
| IS 2002-2 | ||
| IS 2002-3 | ||
| IS 2041R220 | Fine grain Practice (AI 0.02 min in ladle) Normalised for > 12 mm Normalized for all thick when impact tested Tensile test |
Vacuum degassing for >= 40 mm Vacuum degassing and micro alloy for all thickness – when impact test is lower than (-) 20*C – Impact (Transverse) for any temperature. |
| IS 2041R260 | ||
| IS 2041R355 | Fine grain Practice (AI 0.02 min in ladle) Normalized for all thickness Tensile test + Impact test at any one temperature of +20/0/-20/-40 |
Vacuum degassing and micro alloy For all thickness |
| MANDATORY TECHNICAL DELIVERY CONDITIONS FOR BQ PLATES | ||
| MANDATORY REQUIREMENTS FOR BOILER QUALITY GRADES | ||
| Nomenclature | Mandatory TDC As per Specification | Mandatory TDC As per Process requirement |
| IS 2041R220/A285C | Fine grain Practice (AI 0.02 min in ladle) Tensile test Normalized for > 12 mm Normalized for all thick when impact tested |
Vacuum degassing for >= 40 mm |
| IS 2041R220/SA285C | ||
| IS 2002-1/A515-60 | Normalized for > 12 mm Tensile test + Bend test |
Vacuum degassing for >= 40 mm |
| IS 2002-1/SA515-60 | ||
| IS 2002-2/A515-65 | ||
| IS 2002-2/SA515-65 | ||
| IS 2002-3/A515-70 | ||
| IS 2002-3/SA515-70 | ||
| IS 2041R220/A516-55 | Fine grain Practice (AI 0.02 min in ladle) Normalized for > 12 mm Normalized for all thick when impact tested Tensile test |
Vacuum degassing for >= 40 mm Vacuum degassing and micro alloy for all thickness – when impact test is lower than (-) 20*C -Impact (Transverse) for any temperature. |
| IS 2041R220/SA516-55 | ||
| IS 2041R220/A516-60 | ||
| IS 2041R220/SA516-60 | ||
| IS 2041R260/A516-65 | ||
| IS 2041R260/SA516-65 | ||
| IS 2041R260/A516-70 | ||
| IS 2041R260/SA516-70 | ||
| IS 2041R355/A537CL1 | Fine grain Practice (AI 0.02 min in ladle) Normalized for all thickness Tensile test + Impact test at any one temperature of +20/0/-20/-40 |
Vacuum degassing and micro alloy For all thickness. |
| IS 2041R355/SA537CL1 | ||
Galería
