Carbon Steel Grades Worldwide
author: P
2026-05-07
Carbon Steel Grades Worldwide
10# and 15# carbon steel, as core categories of high-quality low-carbon structural carbon steel, are widely used in machinery manufacturing, auto parts, fasteners, stamping parts, carburized parts and many other fields due to their excellent ductility, toughness, weldability and cold workability. They are basic raw materials with large dosage and wide applications in industrial production. Among them, 10# carbon steel has a carbon content between 0.07% and 0.13%, with excellent ductility and easy cold forming; 15# carbon steel has a carbon content between 0.12% and 0.18%, with slightly higher strength than 10# carbon steel, balancing ductility and workability to meet different working condition requirements.
With the continuous upgrading of global manufacturing in 2026, international trade in raw materials is becoming increasingly frequent. However, different countries have obvious differences in the grade naming of 10# and 15# carbon steel, which is likely to cause procurement confusion, material mismatch and other problems, affecting production efficiency and product compliance. Combined with the latest national steel standards in 2026, this article directly presents the corresponding grades of 10# and 15# carbon steel in 8 major countries (China, the United States, Germany, Japan, France, the United Kingdom, Italy and Russia). There is no complex theoretical interpretation, only clear and practical comparison results are provided, which is convenient for industry practitioners to quickly check and directly apply.
The specific corresponding grades are as follows: China: 10# (10), 15# (15); United States: 10# (1010), 15# (1015); Germany: 10# (C10/1.0301), 15# (C15/1.0401); Japan: 10# (S10C), 15# (S15C); France: 10# (XC10), 15# (XC12); United Kingdom: 10# (040A10), 15# (040A15); Italy: 10# (C10), 15# (C15); Russia: 10# (10), 15# (15).
As a high-tech enterprise deeply engaged in carbon steel products manufacturing for many years, we accurately grasp the latest 2026 standards and grade correspondences of 10# and 15# carbon steel in various countries, and have established a complete raw material spectral detection and traceability system. We can accurately identify 10# and 15# carbon steel of various national grades to ensure that the raw materials are fully consistent with production needs.
Relying on advanced production equipment, a professional technical team and strict quality control, the carbon steel parts, fasteners and other products we produce are widely adapted to the needs of many industries around the world, winning long-term trust from domestic and foreign customers. Mastering the corresponding relationship of 10# and 15# carbon steel grades in various countries is the basis for standardized procurement and product quality assurance. The popular science content of this article aims to provide convenient reference for industry practitioners and promote the standardization of global 10# and 15# carbon steel raw material procurement and application.
| country | standard system | 10 Carbon steel | 15 Carbon steel |
| China | GB/T 699-2015 | 10 | 15 |
| U S A | ASTM A29/A29M-26 | 1010（UNS G10100） | 1015（UNS G10150） |
| Germany | DIN EN 10083-2:2026 | C10 | C15 |
| Japan | JIS G4051:2025 | S10C | S15C |
| France | NF EN 10083-2:2026 | XC10 | XC12 |
| Britain | BS EN 10083-2:2026 | 040A10 | 040A15 |
| Italy | UNI EN 10083-2:2026 | C10 | C15 |
| Russia | GOST 1050-2024 | 10 | 15 |
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