Yuhong Holding Group Co., LTD.
| Lugar de origen: | China. |
| Nombre de la marca: | YUHONG |
| Certificación: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Número de modelo: | E235+N, ST37.4- ¿Qué es esto?4 |
| Cantidad de orden mínima: | 100KGS |
|---|---|
| Detalles de empaquetado: | CAJA DE LA MADERA CONTRACHAPADA, PAQUETE |
| Tiempo de entrega: | 7 días |
| Condiciones de pago: | En el caso de las empresas de servicios de telecomunicaciones: |
| - ¿ Qué es eso?: | Se trata de un sistema que se utiliza para la obtención de datos sobre la calidad de los productos. | Utilización: | Tubo del cambiador de calor, tubo de caldera |
|---|---|---|---|
| Estándar: | EN10305-1 | El material: | ST37.4, ST52.4, E235+N |
| WT: | 0.89,1,1.24,2.11MM.... | ||
| Resaltar: | Se puede utilizar para la fabricación de tubos sin costura.,Tubos sin costura NBK,Uso en automóviles Tubo sin costuras |
||
EN10305-1 E235+N NBK Precision Seamless Tube For Automobile Usage
| Steel Grade | Chemical Components (%) | ||||||
| Steel Name | Steel Number | C
max. |
Si
max. |
Mn
max. |
P
max. |
S
max. |
AL
min. |
| E215 | 1.0212 | 0.10 | 0.05 | 0.7 | 0.025 | 0.025 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.2 | 0.025 | 0.025 | / |
| E355 | 1.058 | 0.22 | 0.55 | 1.6 | 0.025 | 0.025 | / |
The tubes shall be manufactured from hot finished seamless tubes by cold drawing or other suitable processes. The tubes shall be supplied in one of the delivery conditions as follows:
| Designation | Symbol | Description |
| Cold drawn/hard | +C | No heat treatment after the final cold drawing process. |
| Cold drawn/soft | +LC | After the final heat treatment there is a suitable drawing pass. |
| Cold drawn and stress relieved | +SR | After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere. |
| Annealed | +A | After the final cold drawing process the tubes are annealed in a controlled atmosphere. |
| Normalized | +N | After the final cold drawing operation, the tubes are normalized in a controlled atmosphere. |
Delivery Condition Symbol in accordance with EN10305 and DIN2391
| Symbol in accordance with EN 10305 | Symbol in accordance with DIN2391 |
| +C | BK |
| +LC | BKW |
| +SR | BKS |
| +A | GBK |
| +N | NBK |
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