Product Overview
1.4823 heat-resistant steel boiler cross beam grate is a core load-bearing component for chain grates, reciprocating grates and large-scale industrial boiler combustion systems. Matched with EN 10295 standard GX40CrNiSi27-4 austenitic heat-resistant cast steel, this product is specially developed for long-term stable operation under high-temperature, high-load and flue gas corrosion conditions.
Juhe Yulong Special Steel Co., Ltd. has been engaged in heat-resistant steel casting and boiler accessories customization for more than 10 years. We focus on full-scenario personalized customization of boiler cross beam grates, breaking the single specification supply mode of traditional foundries. In addition to conventional 1.4823 boiler cross beam grates, we provide one-stop customization covering material grade, structural dimension, machining accuracy, heat treatment state and surface treatment. Our products are widely used in coal-fired boilers, biomass boilers, waste incineration boilers and thermal power station boilers, helping global boiler manufacturers improve equipment operation efficiency and extend replacement cycle.
All our 1.4823 boiler cross beam grates are produced in our own workshops, with complete material test reports, spectral inspection records and dimensional inspection certificates. Every performance index is based on actual detection data, without exaggerated propaganda, to ensure stable operation in extreme working conditions.
Material Introduction: 1.4823 (GX40CrNiSi27-4) Heat-Resistant Cast Steel
1.4823 is a high-chromium-nickel austenitic heat-resistant cast steel specified in EN 10295, designed for boiler cross beam grates that bear heavy load and work in long-term high-temperature environment.
Standard Chemical Composition (EN 10295 Certified)
C: 0.35–0.45%, Si: 2.0–3.0%, Cr: 26.0–28.0%, Ni: 3.5–5.5%, Mn ≤1.0%, P ≤0.04%, S ≤0.03%
Verified Mechanical Properties
- Tensile strength: ≥550 MPa
- Yield strength: ≥290 MPa
- Elongation: ≥10%
Hardness: HB 180–240 after stress relief annealing
Core Performance Advantages for Boiler Cross Beam Grate
Excellent high-temperature oxidation resistance
Stable oxide film formed at 1050°C, effectively preventing surface peeling and oxidation loss during long-term thermal cycling.
Outstanding creep resistance
Maintains structural rigidity under high-temperature static load, avoiding bending, deformation and fracture of cross beam grates.
Strong flue gas corrosion resistance
Resists sulfur-containing flue gas, acid gas and ash erosion in biomass and waste incineration boilers.
Superior casting & machining performance
Suitable for integral casting of large-size cross beams, with good machinability for drilling, tapping and milling.
Full-Dimension Customization for Boiler Cross Beam Grate
We provide all-round structural customization for boiler cross beam grates based on 1.4823 heat-resistant steel, fully matching different boiler models and installation spaces without fixed mold restrictions.
Dimension customization:
Custom length, width, height, installation hole spacing, thread specification and end connection structure.
Structural customization:
Straight cross beam, reinforced cross beam, perforated cross beam, combined grate frame, single/double support cross beam.
Processing customization:
Sand casting, precision casting, stress relief annealing, CNC machining, deburring and flat cutting.
Surface customization:
Sandblasting, anti-oxidation coating, anti-rust passivation and high-temperature protective coating.
Assembly customization:
Integrated casting of cross beam + grate plate base, reducing on-site welding and assembly cost.
- Our customization supports non-standard design from drawings or samples, with rough casting tolerance controlled within ±1.0mm and finished machining tolerance up to ±0.02mm, meeting high-precision assembly requirements of large power station boilers.
Multi-Material Customization System
To adapt to different boiler temperature zones and working conditions, our independent smelting workshop supports full-series heat-resistant steel customization for boiler cross beam grates. Customers can select standard grades or develop exclusive alloy formulas.
Customizable Heat-Resistant Steel Grades
- 1.4823 (GX40CrNiSi27-4): Standard for medium & high-temperature boiler cross beam grates
- 1.4848 (GX40NiCrSi35-18): Ultra-high temperature boiler grate beams
- 1.4855 (GX50NiCr40-3): Heavy-duty corrosion-resistant grate frames
- 1.4776 (GX40CrSi28): Medium-temperature economical boiler cross beams
- 310S (2520) stainless steel: Corrosion-resistant boiler support beams
- ZG40Cr25Ni20: Universal high-temperature grate beams for industrial boilers
- Nickel-based heat-resistant alloys: Special cross beams for waste incineration boilers
Two Custom Modes
- Standard grade customization: Select above materials, customize structure, size and machining only.
- Exclusive alloy development: Adjust Cr, Ni, Si, Mo ratio according to working temperature, load and corrosion environment, with full spectral inspection report.
One-Stop Customization Service Flow
We provide closed-loop customization service covering the whole production chain, helping global customers reduce coordination cost and shorten delivery cycle.
Technical communication: Analyze boiler parameters, working conditions and drawings; provide free material selection and structure optimization.
Material smelting: Melting 1.4823 or custom alloys with spectral composition inspection.
Casting forming: Sand casting / precision casting to produce cross beam blanks.
Heat treatment: Stress relief annealing to improve stability and toughness.
Precision machining: CNC drilling, milling, tapping to meet assembly requirements.
Quality inspection: Hardness test, dimensional inspection, metallographic analysis and non-destructive testing.
Packaging & export: Seaworthy wooden case packaging; complete customs clearance documents and test certificates.
Verified Product Advantages
All advantages are supported by production process and testing equipment, with authentic and reliable data.
High structural stability
Uniform internal structure, no shrinkage cavity and porosity, avoiding deformation under long-term high load.
01
Long service life
Secondary refining process reduces harmful impurities, extending service life by more than 30% compared with ordinary castings.
02
Flexible adaptation
Benchmarking machinery has great influence,covering 1,500 companies and 15 well-known enterprises across the country
03
Easy installation & maintenance
Standardized connection structure, convenient for online replacement and daily maintenance.
04
Efficient after-sales service
Full-process quality traceability, ensuring consistency of each batch.
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Company Advantages: Juhe Yulong Special Steel Co., Ltd.
10+ years professional experience
Our technical team focuses on boiler heat-resistant components, familiar with international standards and boiler industry requirements, providing accurate material matching and structural design.
Complete self-owned workshops
Equipped with smelting workshop, casting workshop, heat treatment workshop, CNC machining workshop and physical and chemical laboratory, all processes are independently completed without outsourcing.
Flexible order policy
Support small-batch sample customization (delivery in 15 working days) and large-scale mass production, with sufficient monthly capacity to meet long-term procurement needs.
Professional foreign trade & logistics service
Proficient in international trade terms, cooperate with stable freight forwarders, provide complete export documents and door-to-door logistics support.
Strict quality assurance
Implement three-level inspection (raw material, semi-finished product, finished product). Free re-production if products fail to meet agreed standards due to our reasons.
Application Scenarios
Our 1.4823 boiler cross beam grates and custom heat-resistant steel cross beams are widely used in global thermal equipment fields:
- Industrial steam boiler: Chain grate cross beam, reciprocating grate support beam
- Thermal power station boiler: Large-scale grate frame, high-temperature furnace support beam
- Waste incineration boiler: Corrosion-resistant cross beam, anti-wear grate beam
- Biomass boiler: High-temperature grate cross beam, reinforced support frame
- Chemical heating furnace & kiln: High-temperature load-bearing cross beam
- Energy-saving waste heat recovery boiler: Custom grate cross beam components
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