1) Cold-Rolled Carbon Structural Steel Thin Plates (GB710-88)
Similar to cold-rolled ordinary thin plates, cold-rolled high-quality carbon structural steel thin plates are the most widely used thin plate steel in cold-rolled products. They are manufactured from carbon structural steel through cold rolling into plates with thicknesses exceeding 4mm.
(1) Primary Applications
Widely used in automotive, machinery, light industry, aerospace, and other sectors for structural components and general deep-drawn parts.
(2) Material Grades and Chemical Composition
Refer to the section on (Hot-Rolled High-Quality Thin Steel Plates).
(3) Mechanical Properties of Materials
Refer to the section on (Hot-Rolled High-Quality Thin Steel Plates).
(4) Sheet Specifications and Manufacturers
Sheet thickness: 0.35–4.0 mm; width: 0.75–1.80 m; length: 0.95–6.0 m or coiled.
2) Cold-Rolled Carbon Steel Sheets for Deep Drawing (GB5213-85)
Cold-rolled high-quality carbon steel sheets for deep drawing are classified by surface quality into three grades: Special High-Grade Finished Surface (I), High-Grade Finished Surface (II), and Higher-Grade Finished Surface (III). Based on the complexity of stamped drawn parts, they are further categorized into three levels: most complex parts (ZF), highly complex parts (HF), and complex parts (F).
(1) Primary Applications
Suitable for deep-drawn complex drawn parts in automotive, tractor, and other industrial sectors.
(2) Material Grades and Chemical Composition
(3) Mechanical Properties
(4) Stamping Performance
(5) Plate Dimensions and Manufacturers
Plate dimensions comply with GB708 specifications.
Ordering thickness ranges: 0.35-0.45, 0.50-0.60, 0.70-0.80, 0.90-1.0, 1.2-1.5, 1.6-2.0, 2.2-2.8, 3.0 (mm) .
3) Cold-Rolled Carbon Tool Steel Thin Plates (GB3278-82)
(1) Primary Applications
Primarily used for manufacturing cutting tools, woodworking tools, saw blades, etc.
(2) Grades, Chemical Composition, and Mechanical Properties
Compliant with GB3278-82 specifications
(3) Plate Specifications, Dimensions, and Manufacturers
Plate thicknesses: 1.5, 2.0, 2.5, 3.0 mm, etc.
Width: 0.8-0.9 m, etc.
Length: 1.2-1.5 m, etc.
4) Cold-Rolled Electromagnetic Pure Iron Thin Plate (GB6985-86)
(1) Primary Applications
Used for manufacturing electromagnetic components in electrical appliances, telecommunication instruments, etc.
(2) Material Grade and Chemical Composition
(3) Electromagnetic Properties
(4) Steel Plate Specifications and Dimensions with Manufacturing Unit
Steel strip is a narrow, elongated steel plate manufactured to meet the needs of various industrial sectors. Also known as strip steel, its width generally falls below 300 mm, though economic development has eliminated width restrictions. Supplied in coils, strip steel offers advantages including high dimensional accuracy, superior surface quality, ease of processing, and material savings. Similar to steel plates, strip steel is categorized into ordinary and high-quality types based on material composition, and into hot-rolled and cold-rolled varieties according to processing methods.
Widely used in manufacturing welded steel pipes, as blanks for cold-formed steel sections, and for producing bicycle frames, rims, clamps, washers, spring leaves, saw blades, and cutting blades.
Cold-Rolled Ordinary Steel Strip (GB716-83)
(1) Primary Applications
Cold-rolled ordinary carbon steel strip is suitable for manufacturing bicycle, sewing machine, agricultural machinery components, and hardware products.
(2) Material Grades and Chemical Composition
Complies with GB700 specifications.
(3) Classification and Designation
A. By Manufacturing Precision
General precision steel strip P; Higher width precision steel strip K; Higher thickness precision steel strip H; Higher width and thickness precision steel strip KH.
B. By Surface Quality
Group I steel strip I; Group II steel strip II.
C. By Edge Condition
Cut-edge steel strip Q; Uncut-edge steel strip BQ.
D. Class A Steel by Mechanical Properties
Soft steel strip R; Semi-soft steel strip BR; Cold-hardened steel strip Y.
(4) Mechanical Properties
(5) Steel Strip Specifications and Production Units
Steel strip width: 5-20mm, with 5mm increments. Specifications are denoted as (thickness) × (width).
A. (0.05, 0.06, 0.08) × (5-100)
B. 0.10 × (5-150)
C. (0.15–0.80, 0.05 increments) × (5–200)
D. (0.85–1.50, 0.05 increments) × (35–200)
E. (1.60–3.00, 0.05 increments) × (45–200)
Grades, Standards, and Applications
|
Standards and Grades |
National Standard | Equivalent International Standard | Function and Application | ||
| Material Category | Implementation Standard | Grade | Standard Number | Grade | Suitable for manufacturing cold-formed parts |
| Low-carbon steel coil | Q/BQB302 | SPHC | JISG3131 | SPHC | |
| SPHD | SPHD | ||||
| SPHE | SPHE | ||||
| SAE1006/SAE1008 | SAE1006/SAE1008 | ||||
| XG180IF/200IF | XG180IF/200IF | ||||
| General Structural Steel | GB/T912-1989 | Q195 | JISG3101 | SS330 | For general structures in buildings, bridges, ships, vehicles, etc. |
| Q235B | SS400 | ||||
| SS400 | SS490 | ||||
| ASTMA36 |
SS540 |
How do I order our products?
Ordering our steel products is very simple. You just need to follow the steps below:
1. Browse our website to find the right product for your needs. You can also contact us through website message, email, WhatsApp, etc. to tell us your requirements.
2. When we receive your quote request, we will reply you within 12 hours (if it is a weekend, we will reply you as soon as possible on Monday). If you are in a hurry to get a quote, you can call us or chat with us online and we will answer your questions and provide you with more information.
3.Confirm the details of the order, such as product model, quantity (usually starting from one container, about 28tons), price, delivery time, payment terms, etc. We will send you a proforma invoice for your confirmation.
4.Make the payment, we will start the production as soon as possible, we accept all kinds of payment methods, such as: telegraphic transfer, letter of credit, etc.
5.Receive the goods and check the quality and quantity. Packing and shipping to you according to your requirement. We will also provide after-sale service for you.
Post time: Aug-16-2025
