Q195 black annealed cold rolled steel Full hard coil is made of low carbon steel Q195, which is processed by special annealing process after cold rolling. The surface is a uniform dark gray oxide film (not pickled), with high strength and good processing performance, which is an ideal choice for construction, hardware, home appliances and other industries.
Q195 Black Annealed Full hard Cold Rolled Steel Coil features:
Implementation standard: GB/T 700-2006 (carbon structural steel)
State characteristics: No annealing after cold rolling, retaining work hardening characteristics
Surface state: Dark gray oxide layer (can be subsequently pickled or plated)
Q195 Full hard CRBA Coil Chemical composition (GB/T 700):
|
Element |
C |
Si |
Mn |
P≤ |
S≤ |
|
Content |
≤0.12% |
≤0.30% |
0.25-0.50% |
0.045% |
0.045% |
Q195 Black Annealed CRFH Performance Indicators:
|
Parameters |
Full hard range |
Test Standards |
Compared with annealed |
|
Tensile strength (Rm) |
500-650 MPa |
GB/T 228.1 |
340-420 MPa |
|
Yield strength (Rp0.2) |
400-550 MPa |
GB/T 228.1 |
195-315 MPa |
|
Elongation (A50mm) |
5%-10% |
GB/T 228.1 |
22%-30% |
|
Hardness (HRB) |
75-90 |
GB/T 230.1 |
45-65 |
|
Thickness tolerance |
±0.05mm(≤2mm) |
GB/T 708-2019 |
Same as above |
Compared with other materials:
|
Features |
Q195 full hard roll |
Q235 full hard roll |
SPCC full hard roll (JIS) |
|
Tensile strength |
500-650 MPa |
550-700 MPa |
540-690 MPa |
|
Yield strength |
400-550 MPa |
450-600 MPa |
430-580 MPa |
|
Cost |
Minimum |
Medium |
Higher precision hardware |
|
Applicable scenarios |
Light-loaded structural parts |
Medium load structural parts |
Higher precision hardware |
Storage and packaging
Rust prevention measures:
Indoor storage humidity ≤ 70%
Outdoor storage needs to be covered with rainproof cloth
Packing method:
Steel strapping + rust-proof paper (optional VCI film)
Roll weight: 3-8 tons/roll (customizable slitting)
💡 Why choose us?
✔ Direct supply from steel mills: source procurement, stable quality
✔ Technical support: free processing technology consultation
✔ Flexible service: support small batch customization (minimum order quantity 1 ton)
GNEE Group strictly follows domestic and international trade practices, regards reputation as life, and provides all customers with the best quality products and the most complete services. The company has established a complete service system and technical support system, not only providing customers with the best quality products, but also providing complete after-sales service.
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