Explore our flagship catalog featuring manufactured and wholesale industrial steel varieties complying with rigorous global standards.
Cold-rolled high carbon steel coils represent the pinnacle of structural performance and raw material versatility in structural engineering, machinery design, and specialized hardware manufacturing. Unlike low-carbon or mild steel variants, high carbon steel coils (containing carbon content ranging from 0.45% to 1.05%) offer exceptional yield strength, extreme wear resistance, and the crucial ability to undergo hardening heat treatments.
The cold rolling process modifies the mechanical properties of hot-rolled strip steel by reducing its thickness at room temperature. This is achieved below the recrystallization temperature, causing intense strain hardening. The result is a highly aligned grain structure, a flawless, smooth-finished surface texture, and tight dimensional tolerances that cannot be matched by hot-rolled alternatives. To prevent cracking during subsequent stamping, bending, or machining operations, these coils undergo rigorous annealing cycles (specifically spheroidized annealing), turning the internal iron carbides into tiny spheres to optimize ductility.
Hansheng Technology ensures complete compliance with global designation systems, providing certified mill verification for all steel parameters.
| Standard | Equivalent Grade | Carbon (C) % | Manganese (Mn) % | Silicon (Si) % | Tensile Strength (MPa) |
|---|---|---|---|---|---|
| GB/T 699 | 50#, 65Mn, 70# | 0.47 - 0.72 | 0.50 - 1.00 | 0.17 - 0.37 | 590 - 785 (Annealed) |
| ASTM A684 | 1055, 1074, 1095 | 0.50 - 1.03 | 0.30 - 0.90 | 0.15 - 0.35 | 620 - 850 (Annealed) |
| JIS G4802 | S50C-CSP, S65C-CSP, SUP10 | 0.47 - 0.70 | 0.60 - 0.90 | 0.15 - 0.35 | 580 - 800 (Annealed) |
| EN 10132 | C55S, C67S, C75S, C100S | 0.52 - 1.05 | 0.40 - 0.90 | 0.15 - 0.35 | 600 - 880 (Annealed) |
*Custom chemistry parameters (such as low sulfur and phosphorus tolerances) can be adjusted to meet specific drawing and high-cycle lifespan requirements.
Unmatched raw material availability, advanced manufacturing scale, and optimized global logistics combined.
Based in Tangshan, Hebei Province—the ultimate epicenter of global steel production. This localized supply chain gives us raw slab cost optimization, eliminating inner-province transit delays and raw-material bottlenecks.
Equipped with 8 high-efficiency, automated production lines. Our mill control software uses thickness-gauging sensors to dynamically adjust rolls in milliseconds, ensuring consistent strip flatness and thickness profile.
Strategically situated 150 kilometers from Beijing Capital Airport and just 150 kilometers from the major international seaport of Tianjin (Xingang). This provides fast, reliable, and cost-effective shipping to key markets globally.
Established in 2006, Hansheng Technology (Hebei) Co., Ltd. has developed into a comprehensive, export-oriented steel manufacturing leader. Operating from our state-of-the-art facilities in Tangshan City, Hebei Province, we serve high-precision industries across the Middle East, Southeast Asia, North Asia, Africa, the Americas, and Europe.
With an annual production capacity of 300,000 metric tons (extending up to 650,000 metric tons across joint ventures), we strictly conform to global standards including GB, JIS, ASTM, DIN, EN, and AS/NZS. Under the core philosophy of "honoring contracts and keeping promises," we guarantee that every batch of steel we export meets our strict, multi-stage quality control checks.
Our Mission: Focusing on prime building materials to create a better life for human beings.
Our Vision: Continue to be a leader in the building materials and industrial steel industry.
Our Base: Headquartered in Tangshan, with branches in key trade hubs throughout China.
Our Values: Trust, Confidence, Reliability; Passion for excellence; Integrity in everything we do; Empowering people to deliver; Adapting to changing market needs.
Our Team: Comprising 35+ senior international trade professionals, logistics specialists, and metallurgical engineers.
A closer look at our advanced manufacturing lines, automated packaging, and warehouse storage facilities.
We work closely with China's largest state-owned and specialized steel mills to ensure stable supply and premium raw material inputs.
Understanding user intent: How different industrial sectors apply high carbon cold-rolled steel coils to overcome high stress levels and extreme wear.
Automotive components, such as clutch diaphragm springs, transmission discs, and retaining rings, require structural integrity to withstand cyclic fatigue. Our cold-rolled steel coils (like C75S and SAE 1074) provide the uniform thickness profile, strict chemical composition control, and spheroidal microstructure needed to ensure parts don't deform under constant heat and high pressure.
Belleville washers, wave springs, and industrial spiral springs require a combination of high elasticity and tensile strength. Our precision cold rolling achieves tight dimensional tolerances (thickness deviations below ±0.015 mm). Spheroidized annealing ensures our coils are highly formable, allowing them to bend easily without micro-cracking before final hardening.
Woodworking band saws, stone-cutting blades, paper cutters, and circular knives demand edge-retention characteristics. Employing high carbon steel coils (such as C100S or SAE 1095) prevents structural failure, while uniform carbon dispersion guarantees consistent hardness profiles across the entire cutting surface after heat treatment.
For large tillers, harrow discs, and plow points operating in abrasive soil environments, wear resistance is a necessity. Using custom alloyed carbon steel with added chromium or boron improves hardenability and toughness. This helps components withstand high-impact strikes from underground rocks and debris without cracking.
From initial design specifications to final logistics tracking, we build reliable supply-chain systems tailored for international steel buyers.
Using hydraulic AGC (Automatic Gauge Control) technology on our cold rolling mills, we maintain consistent sheet thickness. This prevents damage to progressive stamping dies, reduces material waste, and helps ensure predictable tool wear during high-volume manufacturing runs.
We provide multiple edge profiles, including slit edges, rounded edges (No.1 or No.2 edge), and deburred options. Selecting the right edge profile reduces micro-cracking and helps prevent stress-concentration points during subsequent component forming processes.
Depending on storage and rust-prevention requirements, coils can be finished with custom oil films, pickling-passivation treatments, or direct skin pass rolling. This ensures the material remains rust-free and ready for production, even after long-distance ocean shipping and extended warehouse storage.
Our steel solutions are delivered to construction projects, manufacturing facilities, and heavy industrial operations worldwide.
Structural building components for high-rise developments in Dubai.
Heavy industrial plates for petrochemical processing facilities.
Standard structural channels for automotive components plants.
High-tensile zinc-coated steel wire for agricultural fencing installations.
Prestressed concrete strands for major infrastructure bridge construction.
Marine sheet piling for port foundation stability and reclamation.
Supplied structural steel framing profiles to the Beijing Yanxihu Convention and Exhibition Center, ensuring high loading tolerances and strict safety standards.
Delivered specialized structural sections and heavy-duty plates for the clinker production line project of South Africa Mamba Cement Co., Ltd.
Shipped precision-engineered structural framing steel, supporting modern residential developments in Vancouver and Toronto with rust-resistant finishes.
Expert metallurgical insights and solutions addressing the most common design challenges faced by global sourcing managers.
Review our extended inventory, manufactured with the same focus on quality, precision, and reliable global delivery.
Hanshen
