liminfoSteel Grade Reference
Free reference guide: Steel Grade Reference
About Steel Grade Reference
The Steel Grade Cross-Reference is a comprehensive lookup tool covering over 30 commonly used steel grades organized into five categories: Carbon Steel, Alloy & Tool Steel, Stainless Steel, Cast Iron & Cast Steel, and Structural Steel. Each entry provides full grade equivalents across KS, JIS, ASTM/AISI, DIN (Werkstoff number), and EN standards, enabling engineers to quickly find corresponding designations across international specifications.
Every steel grade entry includes detailed chemical composition ranges (wt%), complete mechanical properties such as tensile strength, yield strength, elongation, and hardness values, plus applicable heat treatment parameters including quenching and tempering temperatures. This data is essential for material selection, procurement specification, and quality verification in manufacturing and construction.
The reference covers the full spectrum of engineering steels from general-purpose SS400/A36 structural steel to specialized grades like SKD11/D2 cold-work tool steel, STS630/17-4PH precipitation-hardening stainless, and STS2205 duplex stainless. All information is presented in a searchable, filterable format that runs entirely in your browser with no software installation required.
Key Features
- Cross-reference lookup spanning KS, JIS, ASTM/AISI, DIN (W.Nr), and EN standards for each grade
- Detailed chemical composition data with element ranges in weight percent for every listed steel
- Complete mechanical properties including tensile strength, yield strength, elongation, and hardness values
- Heat treatment parameters with quenching and tempering temperature ranges and cooling methods
- Five organized categories: Carbon Steel, Alloy & Tool Steel, Stainless Steel, Cast Iron, and Structural Steel
- Typical application guidance for each grade covering construction, automotive, aerospace, and tooling uses
- Instant keyword search and category filtering to locate any grade within seconds
- Fully client-side operation with no data uploads, no registration, and no software installation
Frequently Asked Questions
What steel grades are included in this reference?
This reference covers over 30 of the most widely used engineering steel grades, including carbon steels (SS400, S45C, SPCC, SPHC), alloy and tool steels (SCM440/4140, SKD11/D2, SKH51/M2, SKD61/H13), stainless steels (STS304, STS316L, STS630/17-4PH, Duplex 2205), cast irons (GC250, GCD450), cast steels (SC480), and structural steels (SM490, SN490B, SMA490W).
How do I find the ASTM equivalent of a JIS steel grade?
Use the search bar to type the JIS designation (e.g., "S45C" or "SUS304") and the matching entry will display all equivalent standards including the ASTM/AISI designation, DIN Werkstoff number, and EN designation. Each entry provides the complete cross-reference in a structured format.
Does this tool include chemical composition data?
Yes. Every steel grade entry lists the full chemical composition in weight percent, including carbon, manganese, silicon, phosphorus, sulfur, and any alloying elements such as chromium, nickel, molybdenum, vanadium, and tungsten, with their specified min-max ranges per the relevant standard.
What mechanical properties are provided for each grade?
Each entry includes tensile strength (MPa), yield strength (MPa), elongation (%), and hardness values (HB, HRC, or HRB as appropriate). For heat-treatable grades, properties are given for specific conditions such as normalized, quenched and tempered (QT), or solution-annealed states.
Can I look up heat treatment temperatures?
Yes. For grades that require heat treatment, the reference provides quenching temperature ranges, cooling media (water, oil, or air), and tempering temperature ranges. Specialized treatments like carburizing temperatures for SCM415 and aging temperatures for 17-4PH are also included.
What is the difference between SS400 and SM490A?
SS400 (A36 equivalent) is a general structural rolled steel with a tensile strength of 400-510 MPa and yield strength of 245 MPa minimum. SM490A (A572 Gr.50 equivalent) is a higher-strength weldable structural steel with a tensile strength of 490-610 MPa and yield strength of 325 MPa minimum, commonly used for bridges and high-rise buildings.
How do I choose between STS304 and STS316L?
STS304 (18Cr-8Ni) is the most common austenitic stainless steel with good general corrosion resistance. STS316L adds 2-3% molybdenum for superior pitting and crevice corrosion resistance in chloride environments, and its low carbon content (C<=0.03%) prevents intergranular corrosion after welding. Choose 316L for marine, chemical, pharmaceutical, or welded applications.
Is the data in this reference reliable for procurement specifications?
The chemical composition and mechanical property data are compiled from official KS, JIS, ASTM, and EN standard specifications. However, for formal procurement or certification purposes, always verify against the current edition of the applicable standard document, as specifications may be revised periodically.