YB/T 4250-2025 PDF English
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| YB/T 4250-2025 | English | RFQ | ASK | 3 days [Need to translate] | (All-hydrogen bell annealing furnace for metallurgy) |
| YB/T 4250-2011 | English | 389 | Add to Cart | 3 days [Need to translate] | Bell annealing furnace pure hydrogen for metallurgy |
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Basic data
| Standard ID | YB/T 4250-2025 (YB/T4250-2025) |
| Description (Translated English) | (All-hydrogen bell annealing furnace for metallurgy) |
| Sector / Industry | Ferrous Metallurgy Industry Standard (Recommended) |
| Classification of Chinese Standard | H95 |
| Classification of International Standard | 77.180 |
| Date of Issue | 2025-12-17 |
| Date of Implementation | 2026-07-01 |
| Older Standard (superseded by this standard) | YB/T 4250-2011 |
| Issuing agency(ies) | Ministry of Industry and Information Technology |
| Summary | This standard specifies the terminology and definitions for all-hydrogen bell-type annealing furnaces used in metallurgy, and outlines the classification, marking, technical requirements, performance requirements, complete set requirements, inspection items and methods, marking, packaging, transportation, storage, installation, and maintenance of bell-type furnaces. This standard applies to bell-type furnaces used in the metallurgical industry for annealing cold-rolled carbon steel sheets and strips, stainless steel cold-rolled and hot-rolled sheets and strips, alloy sheets and strips, wire rods, pipes, and some non-ferrous metal materials using resistance heating or gas combustion as the heat source and hydrogen as the protective atmosphere. Other industries may refer to this standard for implementation. |
