Hot Rolled Carbon Steel Sheet

With years of metallurgical expertise and a production system fully compliant with ISO 9001 Quality Management System, CE European Safety Standards, IEC Electrical Standards, and China GB National Machinery Standards, YS STEEL supplies high-performance Hot Rolled Carbon Steel Sheets. We serve heavy machinery, mining infrastructure, and bridge construction sectors across global markets.

The size range of common carbon structural steel plates we can supply is: T: 1.5-150mm, W: 900-2500mm, L: 1000-25000mm.

Product Parameter

Types of Carbon Steel Plates By Carbon Content

Based on carbon content, there are three different types of Hot Rolled Carbon Steel Sheet, namely low, medium, and high carbon steel plates. Generally, the higher the carbon content, the greater the hardness, the higher the strength, but the lower the plasticity.

Typical Application Cases

NM400 is a medium-grade wear-resistant steel that balances wear resistance and toughness. It resists material erosion and moderate impact abrasion, and boasts better machinability than NM450 and NM500. Suitable for all moderately worn vulnerable parts used in mining, engineering, cement, thermal power, metallurgy, port, environmental sanitation and other industries, its service life against wear is 3 to 5 times that of ordinary Q235 steel plates.

1. Construction Machinery (Largest Consumption Volume)

Excavation equipment: Excavator bucket bottom plates, side cutting edges, bucket tooth guards, wear liners for excavators, rotary drill rod sleeves.

Loading & bulldozing equipment: Loader buckets, cutting blades, bucket cutting edges, bulldozer dozer blades, ripper guards.

Transport vehicles: Bottom liners, side plates and tailgate liners of muck trucks, dump trucks and mining trucks; wear-resistant base plates for semi-trailers.

Pavement machinery: Asphalt paver base plates, wear guards for mixing plants, milling machine wear blades.

2. Mining & Aggregate Industry

Crushing equipment: Jaw plates of jaw crushers, liner plates of impact crushers, guard plates of hammer crushers, stone distributing baffles

Conveying system: Chute liners for belt conveyors, material guide chutes, vibrating screen plates, feeder liners, mining skip buckets

Underground coal mining: Middle troughs of scraper conveyors, coal bunker liners, wear-resistant shields for shearers, wear-resistant parts of shield machines

3. Cement & Building Materials Industry

Mixing equipment: Liners of concrete mixers, mixing blades, toothed plates of cement push feeders

Powder conveying system: Cyclone dust collector housings, guide vanes of powder separators, sand and stone bunker liners, spiral conveyor barrels

Brick making equipment: Forming molds for brick machines, wear-resistant guard plates of stone sand making machines

Production Standards & Quality System

These certifications are maintained through regular internal audits and third-party assessments, ensuring that every shipment meets the regulatory requirements of your destination market.

Which Grade Fits Your Application Best?

Selecting the right steel grade directly impacts your equipment's service life and total cost. Use our empirical guide below based on industry best practices:

Frequently Asked Questions

Q1: What thickness tolerances do you follow for your Hot Rolled Carbon Steel Sheets?

We manufacture according to GB/T 709 (Chinese standard) or ASTM A6/A568 (US standard) depending on the order. Tolerance ranges vary by nominal thickness – we ensure full compliance with the standard specified in your contract.

Q2: What is the difference between Q235B and SS400? Can they be used interchangeably?

Q235B (Chinese GB standard) and SS400 (Japanese JIS standard) are both general-purpose structural steels with similar tensile strength (370-500MPa) and yield strength (≥235MPa for Q235B; ≥245MPa for SS400). In most structural applications—such as building frames, bridges, and general fabrications—they are largely interchangeable.

However, key differences to note:

Chemical composition: Q235B has slightly stricter limits on sulfur (S) and phosphorus (P) content, offering marginally better weldability in certain conditions.

Impact toughness: Q235B specifies impact testing at 20°C, while SS400 does not require impact testing by default—critical for low-temperature environments.

Standard system: Q235B follows GB/T 700; SS400 follows JIS G3101. For projects requiring specific standard compliance, always confirm which standard your engineer specifies.

Our recommendation: For general use, either grade works. For low-temperature or high-weldability-demand projects, choose Q235B. For projects with Japanese-designed specifications, choose SS400.

Q3: What is the difference between NM400 and ordinary structural steel (e.g., Q235B)? When should I choose NM400?

The short answer: NM400 is a wear-resistant steel; Q235B is a structural steel—they serve completely different purposes.

Key takeaway: Using NM400 for structural frames is overkill and difficult to weld. Using Q235B for high-wear liners will cause frequent downtime and replacement costs. Choose NM400 when abrasion is your primary challenge; choose Q235B when structural integrity and weldability are your priorities.

Q4: Do you provide cutting and other value-added processing services?

Yes. We offer CNC plasma/laser cutting, drilling, edge milling, and bending services. We can supply finished parts ready for final assembly, helping you reduce secondary processing costs.

Q5: What is the minimum order quantity (MOQ) for a customized size?

For standard widths (1500/2000/2500mm), our MOQ is 1 coil (approx. 25-28 tons). For cut-to-length plates, we accept trial orders as low as 5 tons.

Q6: How do you prevent rust and oxidation during long sea freight?

We offer three preservation options: (1) Oiled + VCI paper interleaving; (2) Anti-rust primer painting; (3) Hot-dipped galvanizing. All export packages are reinforced with steel frames and waterproof wrapping suitable for bulk vessel transport.

Q7: Which standards do your certifications cover?

Our production system is fully certified under ISO 9001, CE (European Safety), IEC (Electrical), and China GB National Machinery Standards, ensuring compliance with quality, safety, and performance requirements across major global markets.

Contact Us

Have questions about grades, sizes, or customization? Our team is ready to assist.

Founded: 2021
Headquarters: Tangshan, Hebei, China
Factory: CHENGPING METAL CO., LTD
Team: 30+ employees
Certification: ISO 9001
Export Markets: Southeast Asia, Middle East, Central Asia, Europe