In the digital age, why is this specific PDF request so common?
For metallurgists and welding engineers, the chemical composition is the most critical section of any steel standard PDF. The chemical makeup determines weldability, corrosion resistance, and hardness.
The relatively low Carbon equivalent (CE) is what makes ST37-2 so popular. Low carbon content ensures that the steel does not become brittle in the heat-affected zone (HAZ) during welding. This allows for welding without pre-heating in most standard atmospheric conditions, a vital factor for construction speed.
| Standard | Grade Name | | :--- | :--- | | (Current European) | S235JR (Material number 1.0038) | | ASTM (American) | A283 Grade C or A36 (Close, but not exact) | | BS (British - Withdrawn) | 4360 Grade 40A | | JIS (Japanese) | SS400 (Approximate) | | GB (Chinese) | Q235B | din 17100 st37-2 pdf
DIN 17100 was officially withdrawn in 2004 and replaced by DIN EN 10025 . The direct successor to St37-2 is S235JR (1.0038). However, millions of tons of this steel still exist in the field, and many repair specifications still reference the old standard.
Before the harmonization of European standards (EN), DIN 17100 St37-2 was the go-to material for welded and riveted structures, bridges, cranes, and general engineering components. It was prized for its good weldability, formability, and cost-effectiveness.
St37-2 is known for its versatility, excellent weldability, and balanced mechanical properties, making it a "workhorse" in general construction . In the digital age, why is this specific
When working with carbon steel structural components, one standard that frequently surfaces in legacy blueprints and European manufacturing specifications is . Although this standard has been officially withdrawn, it remains a critical reference for maintenance, repair, and understanding older steel structures.
The low carbon content ensures good processing and welding characteristics . Max % (for thickness ≤is less than or equal to Manganese (Mn) Phosphorus (P) Sulfur (S) Nitrogen (N) Mechanical Properties Values may vary slightly based on product thickness . Yield Strength ( Recap R sub e ): 235 MPa (min) for ≤is less than or equal to Tensile Strength ( Rmcap R sub m ): 340 – 470 MPa . Elongation ( ): ≥is greater than or equal to 24% (for thickness ≤is less than or equal to
The naming convention under the historical DIN 17100 standard follows a precise alphanumeric logic: Stands for Stahl (the German word for Steel). The relatively low Carbon equivalent (CE) is what
In conclusion, the pursuit of a is a fascinating example of how industrial progress creates challenges for preservation. While the standard is technically obsolete—replaced by unified European norms—its practical value remains immense. The PDF serves as a time capsule, providing the legal and technical basis for maintaining the 20th century's built environment. For anyone working with older steel structures, finding that PDF is not an academic exercise; it is a prerequisite for safety, compliance, and historical accuracy.
Engineers and procurement specialists frequently seek out original datasheets in documentation like the to confirm exact technical delivery conditions. This comprehensive guide provides an exhaustive review of its chemical makeup, mechanical performance, modern equivalents, and industrial processing. 🛠️ Decoding the Nomenclature: What Does St37-2 Mean?
St37-2 is categorized as a low-carbon (mild) steel. Its low carbon content guarantees superior weldability, high ductility, and ease of machining. The chemical thresholds defined by the DIN 17100 standard are detailed below: Chemical Element ≤is less than or equal to 16mm (Max %) Thickness > 16mm (Max %) Manganese (Mn) Phosphorus (P) Sulfur (S) Silicon (Si) Traces / By agreement Traces / By agreement Nitrogen (N) DIN 17100 St 37-2 Steel Overview | PDF - Scribd
To understand the material, one must first understand the standard. was the German standard for "General structural steels." Issued by the Deutsches Institut für Normung (German Institute for Standardization), this standard outlined the technical delivery conditions for steel grades used primarily in welded and riveted structures.