Q195 black annealed cold rolled steel coil is a high-quality low-carbon steel material, processed by advanced cold rolling process and special annealing treatment technology. The surface of the product is evenly covered with a black oxide film, which is both practical and beautiful, and is an ideal choice for various metal processing fields.
Black annealed cold rolled crca steel coils Q195 core parameters
|
Item |
Specifications/Parameters |
|
Standard |
GB/T 700 |
|
Thickness |
0.5-3.0mm |
|
Width |
1000-1250mm |
|
Surface |
Black oxide layer |
|
Tensile Strength |
315-430MPa |
|
Yield Strength |
≥195MPa |
|
Hardness |
HRB≤65 |
|
Surface roughness |
Ra≤1.6μm |
In-depth analysis of material properties
Metallurgical structure: ferrite + a small amount of pearlite
Oxide layer thickness: 3-5μm (ASTM B117 salt spray test 48 hours)
Work hardening index: n value ≥ 0.18
Cold Rolled Black Annealed Coil Q195 Core technology advantages:
Advanced process: annealing in nitrogen and hydrogen mixed protective atmosphere to ensure uniform and dense oxide layer
Strict quality control: thickness tolerance is controlled within ±0.03mm, plate flatness ≤3I-unit
Stable performance: aging treatment to eliminate processing stress and ensure dimensional stability
Environmental protection: environmental protection technology is used in the production process and complies with RoHS standards
Black Annealed Cold Rolled Steel Coil Q195 features:
Excellent material: strictly in line with GB/T700 standard, carbon content ≤0.12%, ensuring good processing performance
Surface treatment: special annealing process forms a dense oxide layer, with certain anti-rust ability
Processing performance: elongation ≥30%, suitable for stamping, bending and other forming processes
Complete specifications: thickness 0.5-3.0mm, width 1000-1500mm, to meet different needs
Economical and practical: high cost performance, can reduce 15-20% cost compared with similar products
Application areas:
Architectural decoration: light steel keel, ceiling materials
Furniture manufacturing: metal brackets, drawer rails
Hardware products: tool boxes, storage cabinets
Electrical accessories: chassis shell, internal brackets
We guarantee
Strictly implement the ISO9001 quality management system to ensure that each roll of product meets the standard requirements
Provide quality inspection reports, including chemical composition, mechanical properties and other test data
Implement a return and exchange policy for product quality issues, so that customers have no worries
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