What Do 1022A, 1010A, 1008A and 1006A Mean?

Are SAE 1022A, 1010A, 1008A, and 1006A real material grades?

— Analysis of Several Easily Confused Steel Grades in the Cold Heading Industry

In the cold-heading-quality wire (CHQ wire) industry, many purchasing engineers, quality engineers, and even technical personnel often encounter inquiries such as:

* SAE 1022A Wire
* SAE 1010A Material
* SAE 1008A Cold Heading Wire
* SAE 1006A Steel Wire

At the same time, they frequently receive customer drawings, technical agreements, or purchase orders containing:

SAE 1022A

or

1008A Wire

Many people then wonder:

Are SAE 1022A, 1010A, 1008A, and 1006A official material grades under the American SAE standard?

In fact, this is one of the most common sources of confusion in the cold heading industry.

This article will provide a systematic analysis of this issue by combining the American SAE standards, Japanese JIS standards, and practical applications within the cold heading industry.

I. SAE 1006, 1008, 1010, and 1022 Are Real Material Grades

First, it’s important to clarify:

The following grades are all ordinary carbon steel grades specified in the American SAE J403 standard, “Chemical Compositions of SAE Carbon Steels.”

All these materials fall under the category of:

Plain Carbon Steel (ordinary carbon steel)

The SAE numbering system is very straightforward:

* The first two digits, “10,” indicate ordinary carbon steel;
* The last two digits represent the nominal carbon content.

For example:

These approximate carbon values explain the designations. They are not measured typical values or acceptance limits; use the composition range in the specified standard and edition.

Therefore,

SAE1006, 1008, 1010, and 1022 are all genuine material grades recognized by U.S. standards.

II. So, Do SAE 1022A, 1010A, 1008A, and 1006A Exist?

The answer is clear:

In the SAE J403:2014 edition reviewed for this article, 1006A, 1008A, 1010A and 1022A are not listed as standard grades. This finding is limited to that reviewed edition and is not a claim about every standard system or company designation.

In other words:

❌ SAE1022A

❌ SAE1010A

❌ SAE1008A

❌ SAE1006A

In the SAE J403:2014 edition reviewed for this article, 1006A, 1008A, 1010A and 1022A are not listed as standard grades. This finding is limited to that reviewed edition and is not a claim about every standard system or company designation.

For the reviewed SAE J403 grade table, use:

✅ SAE1022

✅ SAE1010

✅ SAE1008

✅ SAE1006

Thus, when procurement documents or drawings list something like “1022A,” it should not automatically be assumed to be an official U.S. SAE grade.

III. Why Is “1022A” or “1008A” Still Widely Used in the Market?

This usage stems from long-standing conventions within the cold heading industry.

1. Mixing of the SAE and JIS Systems

In Japan, cold heading steels follow the:

JIS G3507

grading system.

For example:

It’s crucial to note here that the “A” is part of the JIS designation itself.

For instance:

SWRCH22A

is a complete grade.

It does not mean:

SAE1022 + A

2. Long-Standing Abbreviated Usage in International Fastener Markets

Because:

SAE1022

and

SWRCH22A

have very similar chemical compositions, many customers have gradually adopted shorthand expressions like “1022A” during their communications over the years.

For example:

SAE1008

↓

1008A

SAE1010

↓

1010A

SAE1022

↓

1022A

An undefined label in an enquiry does not establish its governing standard. A similar suffix can have a specific meaning in another standard, so retain the full standard and original designation.

Similar suffixes can belong to another standard

ASTM F2282-18 Table 4 explicitly lists IFI-1022/A and IFI-1022/B. These are IFI identifiers in that standard, not A-suffix grades in SAE J403:2014. The listed carbon ranges are 0.18–0.21% for IFI-1022/A and 0.20–0.23% for IFI-1022/B; the manganese ranges are 0.80–1.10% and 0.90–1.10%, respectively. Retain the original identifier and apply the complete standard, including delivery and deoxidation conditions. Do not remove A/B from such identifiers or infer equivalence with a SAE or JIS grade.

IV. Can SAE1022 and SWRCH22A Be Considered Completely Equivalent?

Many engineers ask:

Is SAE1022 simply another name for SWRCH22A?

The answer is no.

Although their chemical compositions are very similar, they still originate from two distinct standard systems.

Therefore,

In the automotive fastener industry, materials should generally be supplied according to the customer-specified standard, and equivalence cannot be determined solely based on chemical composition.

V. For the Cold Heading Industry, It’s Not Just About the Grade

Many purchasing engineers often specify only:

SAE1022

However,

for the cold heading industry, the grade is merely one component of the material definition.

What truly determines cold heading performance goes far beyond just chemical composition.

⸻

1. Chemical Composition Stability

Beyond meeting the requirements of SAE J403, it’s essential to control:

* Carbon segregation
* Manganese segregation
* Residual elements
* Overall compositional stability

Otherwise, issues may arise such as:

* Fluctuations in cold heading loads;
* Variability in heat treatment performance;
* Reduced product consistency.

⸻

2. Spheroidized Microstructure

Where spheroidizing annealing is specified for the grade and forming route, assess carbide morphology and its uniformity. Spheroidizing annealing is not mandatory for every low-carbon CHQ wire route.

The quality of spheroidization directly affects:

* Cold heading forming force;
* Die life;
* Risk of cracking during cold heading;
* Subsequent heat treatment performance.

Therefore, microstructure must be evaluated together with the specified grade, delivery condition and forming requirements.

⸻

3. Nonmetallic Inclusions

For automotive fasteners, it’s typically necessary to strictly control:

* Type A inclusions;
* Type B inclusions;
* Type C inclusions;
* Type D inclusions. Inclusion categories, rating methods and limits must be specified by the applicable inspection standard and customer agreement; the category letters alone are not acceptance criteria.

The inclusion levels significantly impact:

* Fatigue life;
* Cracking during cold heading;
* Quenching cracks;
* Overall product reliability.

⸻

4. Surface Quality

Cold heading materials are extremely sensitive to surface defects.

For example:

* Cracks;
* Laps;
* Indentations;
* Scratches;
* Decarburization.

Many cold heading failures are not caused by material strength but by surface imperfections in the raw material.

⸻

5. Delivery Condition

Even materials labeled as SAE1022 can differ greatly in delivery state.

For example:

* Hot-rolled wire rod;
* Spheroidize-annealed wire rod;
* Cold-drawn precision wire;
* Phosphated and soaped wire;
* Phosphate-free lubricated wire.

Different delivery conditions correspond to entirely different cold heading processes.

Therefore, when placing orders, it’s recommended to clearly specify:

* Material grade;
* Applicable standard;
* Processing state;
* Delivery condition,

rather than simply requesting “SAE1022.”

⸻

VI. How to Properly Describe Materials When Purchasing Cold Heading Wire?

To avoid misunderstandings in international trade, it’s advisable to use standardized descriptions.

For example:

Under the U.S. SAE system:

Wire for cold heading; chemistry to SAE J403:2014, grade 1022; dimensions, delivery condition, surface treatment and acceptance requirements as agreed

Under the Japanese JIS system:

SWRCH22A Cold Heading Wire Rod according to JIS G3507-1

Avoid using shorthand expressions like “1022A Wire,” as different suppliers may interpret them inconsistently.

⸻

VII. Why Do Professional Cold Heading Material Suppliers Focus More on Standards Than Abbreviations?

For high-quality cold heading wire, material stability depends not only on the grade but also on the entire manufacturing process.

Professional suppliers typically control:

* Steel cleanliness;
* Chemical composition stability;
* Nonmetallic inclusions;
* Spheroidized microstructure;
* Surface quality;
* Decarburization prevention;
* Drawing process conditions;
* Consistency in mechanical properties.

Especially in sectors such as automotive fasteners, construction machinery, high-end connectors, and precision cold-headed components, these stringent controls are often more critical than the material grade itself.

Conclusion

SAE1006, SAE1008, SAE1010, and SAE1022 are genuine American SAE carbon steel grades.

However:

In the SAE J403:2014 edition reviewed for this article, 1006A, 1008A, 1010A and 1022A are not listed as standard grades. This finding is limited to that reviewed edition and is not a claim about every standard system or company designation. A customer or company may use a proprietary designation, but its composition, product form, delivery condition and acceptance requirements must be defined in the drawing, contract or technical agreement; they must not be inferred from an abbreviation such as “1022A”.

The “1006A,” “1008A,” “1010A,” and “1022A” seen in the market mostly originate from:

* Japanese JIS cold heading steel grades in the SWRCH series;
* Long-standing commercial abbreviations in the international fastener industry;
* Conventions arising from the mixed use of SAE and JIS systems.

Therefore, for cold heading wire procurement and technical exchanges, it’s always recommended to clearly specify the applicable standard rather than relying solely on abbreviated terms like “1022A” to determine material types.

About Creation Group

Creation Group specializes in high-quality cold heading wire (CHQ Wire), shaped wire, and advanced automotive fastener material solutions. We have long provided materials and customized services compliant with SAE, JIS, EN, ISO, and customer-specific technical specifications to the global automotive, fastener, and precision manufacturing industries.