Q235B Q355B High Strength Anti-Corrosion Steel Frame Cold Storage With Custom Internal Partition

1. Product Core Introduction & Steel Grade Parameters

This high-performance prefabricated cold storage adoptsQ235B and Q355B high-strength anti-corrosion steel frames as the main load-bearing structure, matched with customized internal partition systems and professional cold insulation sandwich panels. Compared with ordinary workshop steel structures, cold storage steel frames require higher strength, better anti-corrosion performance and stronger seismic stability, adapting to long-term low-temperature, high-humidity and high-corrosion internal working environments. Q235B steel features excellent toughness, ductility and stable welding performance, suitable for conventional cold storage frames, partition supports and auxiliary structures. Q355B high-strength steel has 30% higher tensile strength and yield strength than ordinary carbon steel, applied for large-span cold storage main columns, roof rafters and heavy-load beam structures, effectively reducing steel consumption while improving overall structural rigidity.

All steel members undergo strict hot-dip galvanizing and multi-layer anti-rust paint treatment, specially optimized for cold storage internal frost, water vapor and external atmospheric corrosion. The standardized structural parameters support free customization of span, eave height, partition size and internal space layout, fully meeting the storage needs of frozen food, fruits and vegetables, medical reagents and chemical low-temperature materials.

2. Structural Service Life & Seismic Performance

With standardized factory production, professional anti-corrosion treatment and scientific daily maintenance, the overall service life of the steel frame reaches 30–35 years. The Q355B high-strength main frame maintains stable mechanical performance in long-term low-temperature environments without brittle deformation, and the anti-corrosion layer effectively avoids rust peeling and structural aging caused by cold storage water vapor erosion. Custom internal partition panels and enclosure systems can keep intact thermal insulation and structural performance for more than 25 years.

The whole cold storage structure adopts professional seismic design, complying with international seismic building codes. The bolt assembly connection mode has good ductility and shock resistance, which can effectively buffer seismic vibration and avoid overall structural collapse. The flexible steel frame structure and reinforced diagonal bracing system disperse seismic pressure evenly, adapting to medium and high seismic zones. Different from rigid concrete structures, the steel cold storage will not produce brittle fracture during earthquakes, greatly improving the overall safety factor of low-temperature storage buildings.

3. Professional Fire Prevention System

To solve the fire risk of enclosed cold storage and thermal insulation materials, we configure a complete set of targeted fire prevention systems. The internal and external enclosure and partition panels adopt rock wool fireproof sandwich panels with A1-level fire resistance, which do not burn or produce toxic smoke when encountering open fire, and can effectively block fire spread. All steel frames are sprayed with fireproof coating, which delays the temperature rise of steel components in fire accidents and maintains structural stability for a long time to gain rescue time.

In addition, we support customized reserved fire exits, fire isolation partitions, smoke exhaust systems and temperature sensing alarm devices. The partition wall system adopts segmented fire isolation design, which can limit fire hazards to a single independent storage area, avoiding large-area loss of stored goods. The whole fire prevention system meets industrial cold storage safety standards and solves the fire hidden danger of traditional closed cold storage.

4. Customized Service & Internal Partition Solution

We provide full-scene personalized customization services for prefab steel frame cold storage, covering structural size, internal partition layout, functional configuration and supporting systems. In terms of overall size, customers can customize the cold storage span, length, height and foundation form according to land area and storage capacity. The core customized advantage lies in the internal partition system, which can divide the cold storage into multiple independent functional areas such as freezing area, refrigeration area, constant temperature area and buffer area according to customer’s storage needs.

The customized partitions adopt detachable bolt assembly design, which is convenient for later space adjustment and functional upgrading. We also support personalized configuration of cold storage doors, thermal insulation windows, ventilation and dehumidification systems, low-temperature lighting and drainage systems. Whether it is small-sized commercial cold storage or large-span industrial low-temperature storage warehouse, we can provide one-to-one professional design and customized solutions to meet differentiated storage scenarios.

5. Process Service & Production Service System

We implement full-cycle process services covering pre-sales, in-production and on-site construction. In the pre-sales stage, professional engineers provide free scheme design, structural parameter calculation, space partition planning and scheme optimization according to customer’s local climate, seismic grade, storage temperature and cargo types. We provide detailed design drawings and technical parameters for customer confirmation to ensure the scheme meets actual usage needs.

In the production stage, strict standardized production services are implemented. All Q235B and Q355B steel materials are inspected for qualification first, and processed through CNC precision cutting, automatic drilling, factory welding and multi-layer anti-corrosion treatment. All partition panels and enclosure panels are produced in automated production lines with stable thermal insulation and fireproof performance. Each component is marked with a unique number for convenient on-site matching and installation. During production, we support real-time progress feedback, factory inspection and third-party quality testing to ensure zero defective products.

In the construction stage, we provide professional installation guidance, including detailed installation manuals, operation videos and remote technical support, to ensure standardized on-site assembly and avoid installation errors affecting cold storage thermal insulation and structural safety.

6. Cost Composition & Quotation Standard

The quotation of Q235B/Q355B steel frame cold storage is transparent and standardized, mainly including steel frame structure cost, thermal insulation enclosure and partition panel cost, supporting functional system cost, production and packaging cost, and transportation cost. The steel frame cost is determined by steel grade, structural span and load standard; Q355B high-strength steel is more suitable for large-span and heavy-load cold storage with higher comprehensive cost performance despite slightly higher unit price.

Different customized partition quantities, panel thicknesses, fireproof and thermal insulation grades will affect the total quotation. We abandon opaque hidden charges and provide detailed itemized quotation lists for all projects. For customers with large-scale projects and long-term cooperation, we support preferential group purchase prices and flexible payment terms. While controlling project cost, we strictly guarantee material quality and production standards, avoiding later maintenance and safety risks caused by low-cost inferior materials. Our cost positioning is focused on high cost performance, ensuring long-term stable operation of cold storage for customers.

7. After-Sales Guarantee System

We provide a comprehensive and perfect after-sales service guarantee system for all customized steel frame cold storage projects. First, we offer long-term structural quality guarantee: the main steel frame enjoys 30-year warranty, ensuring no water leakage, thermal insulation failure and panel deformation.

Second, we provide lifelong technical consultation and after-sales maintenance guidance. Professional technical teams respond to customer problems within 24 hours, solve on-site installation, use and maintenance problems remotely, and provide on-site service support for major faults. Third, we support free replacement of aging accessories and regular equipment inspection guidance. In addition, for later cold storage space transformation, partition adjustment and functional upgrading, we provide preferential customized transformation services to maximize the service value of customer projects.

Feel free to consult our specialists for building layout design and cost evaluation.