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What Is ASTM A1008? Cold Rolled Steel Specification
ASTM A1008 / A1008M is a standard specification for cold-rolled carbon steel sheet, supplied in coils or cut lengths. It is designed for applications requiring good formability, consistent mechanical properties, and controlled surface quality.
ASTM A1008 cold-rolled steel is widely used in automotive components, home appliances, office furniture, machinery parts, and general fabrication, where dimensional accuracy and reliable performance are essential.
Hengze Steel supplies ASTM A1008 cold-rolled steel in multiple grades, supporting the needs of steel buyers, engineers, and manufacturers across various applications.
Table of Contents
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1️⃣ Scope and Product Forms1️⃣ Scope and Product Forms
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2️⃣ ASTM A1008 Steel Grades2️⃣ ASTM A1008 Steel Grades
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3️⃣ Chemical Composition Requirements3️⃣ Chemical Composition Requirements
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4️⃣ Mechanical Property Requirements4️⃣ Mechanical Property Requirements
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5️⃣ Thickness, Width & Dimensional Notes5️⃣ Thickness, Width & Dimensional Notes
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6️⃣ Surface Condition and Finish6️⃣ Surface Condition and Finish
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7️⃣ Typical Applications7️⃣ Typical Applications
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8️⃣ Frequently Asked Questions (EN 10130)8️⃣ Frequently Asked Questions (EN 10130)
1️⃣ Scope and Product Forms
ASTM A1008 covers:
- Cold-rolled carbon steel sheet
- Supply form: coils or cut-to-length sheets
- Manufacturing process: cold rolling of hot-rolled steel
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Intended use: forming, drawing, stamping, or structural fabrication
Cold rolling improves:
- Thickness and flatness control
- Surface smoothness
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Mechanical property consistency
2️⃣ ASTM A1008 Steel Grades
ASTM A1008 classifies steel based on formability level and strength requirement, allowing precise grade selection.
Main Grade Categories
| Category | Typical Designations | Application Focus |
|---|---|---|
| Commercial Steel | CS Type A / B / C | General fabrication |
| Drawing Steel | DS Type A / B | Moderate forming |
| Deep Drawing Steel | DDS | Deep drawing |
| Extra Deep Drawing Steel | EDDS | Complex forming |
| Structural Steel | SS Grades (e.g. SS 36) | Load-bearing |
| High Strength Low Alloy | HSLAS / HSLAS-F | Strength + formability |
Grade selection should be based on forming complexity, load requirements, and downstream processing.
3️⃣ Chemical Composition Requirements
ASTM A1008 specifies chemical limits to ensure ductility, weldability, and controlled strength.
Typical Chemical Composition (wt.% max)
| Grade | C | Mn | P | S |
|---|---|---|---|---|
| CS Type B | 0.02–0.15 | ≤0.60 | ≤0.030 | ≤0.035 |
| DS Type B | ≤0.06 | ≤0.50 | ≤0.030 | ≤0.035 |
| SS Grade 36 | 0.08–0.20 | 0.60–1.00 | ≤0.030 | ≤0.035 |
| HSLAS 50 | ≤0.12 | ≤1.60 | ≤0.030 | ≤0.035 |
Chemical composition is determined by heat (ladle) analysis, in accordance with ASTM testing procedures.
4️⃣ Mechanical Property Requirements
Mechanical properties depend on grade and thickness and are defined to ensure reliable forming and structural performance.
Representative Mechanical Properties
| Grade | Yield Strength (MPa) Min | Tensile Strength (MPa) Min | Elongation (%) |
|---|---|---|---|
| CS Type B | ~170 | ~270 | 28–40 |
| DS Type B | ≥140 | ≥270 | 30–42 |
| SS Grade 36 | ≥250 | ≥360 | 20–28 |
| HSLAS 50 | ≥345 | ≥450 | ≥22 |
These values support predictable behavior during bending, stamping, and load-bearing use.
5️⃣ Thickness, Width & Dimensional Notes
ASTM A1008 refers to ASTM A568 / A568M for dimensional tolerances.
Common Industry Ranges
Thickness: approx. 0.20 – 5.00 mm
Width: approx. 600 – 2000 mm
Thickness tolerance: per ASTM A568 or purchase agreement
Dimensional tolerances should always be clearly specified in the purchase order to avoid application mismatches.
6️⃣ Surface Condition and Finish
ASTM A1008 cold-rolled steel sheet is typically supplied with:
Smooth or matte surface finish
Oiled or dry surface condition
Skin-passed or annealed condition
Surface condition directly affects forming behavior, coating adhesion, and corrosion protection during storage.
Suppliers such as Hengze Steel usually offer surface condition customization based on downstream processing needs.
7️⃣ Typical Applications
ASTM A1008 cold-rolled steel is commonly used in:
Automotive interior and exterior components
Home appliance panels and housings
Office furniture and shelving systems
Machinery and equipment parts
General stamping and fabrication industries
Its combination of formability, surface quality, and strength control makes ASTM A1008 suitable for both commercial and structural applications.
This article is intended as a technical reference. For material selection, processing guidance, or ASTM A1008 supply options, Hengze Steel provides cold-rolled steel solutions aligned with international standards.
8️⃣ Frequently Asked Questions (EN 10130)
ASTM A1008 includes multiple designations such as CS Types A/B/C, DS Types A/B, DDS, EDDS, SS Grades, and HSLAS/HSLA-F for different forming and strength needs.
Yes — typical cold-rolled carbon steels like ASTM A1008 CS Type B can be welded by standard arc or resistance methods without special procedures, similar to common mild steels.
ASTM A1008 does not set specific corrosion resistance criteria — steel typically has a smooth matte surface with light oil for storage protection. Final corrosion protection usually comes from coatings or galvanizing.
ASTM A1008 refers to separate tolerance standards (e.g., ASTM A568/A568M) for thickness and width tolerance. These are typically defined in order documents rather than within the A1008 text itself.
Common industry ranges for ASTM A1008 cold-rolled steel are thicknesses from ~0.20 mm to ~5.0 mm and widths from ~600 mm to ~2000 mm, customizable per order and mill capability.
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