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
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GB/T 700 |
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0.5-3.0mm |
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1000-1250mm |
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315-430MPa |
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>=195MPa |
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HRB<=65 |
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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:
Strict quality control: thickness tolerance is controlled within ±0.03mm, plate flatness <=3I-unit
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


Strictly implement the ISO9001 quality management system to ensure that each roll of product meets the standard requirements
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