ASTM A500 Güte B: Kalt-Formed Structural Tubing

ASTM A500/A500M · Published: 2026-05-25 · Updated: July 2026

Quick Reference

ASTM A500 Grade B is the standard specification for cold-formed welded and seamless carbon steel structural tubing used in construction, machinery, and architectural applications. With 315 MPa minimum yield strength in round sections (higher in...

ASTM A500 Güte B ist der standard specification für kalt-formed welded und seamless carbon steel structural tubing used in construction, machinery, und architectural applications. Mit 315 MPa minimum yield strength in round sections (higher in square/rectangular due zu kalt arbeiten), es bridges der gap zwischen heiß-rolled sections und higher-kosten mechanical tubing. Der kalt-forming process increases strength durch arbeiten hardening while maintaining excellent weldability. Commonly used für building columns, trusses, sign supports, und agricultural ausrüstung frames.

Quick Facts

KategorieKohlenstoffstahl
NormASTM A500/A500M
Density7.85 g/cm³
Yield Strength315 MPa (46 ksi)
Tensile Strength400 MPa (58 ksi)

Global Equivalents & Cross-Reference

Alternative Standard / GradeAction
S275J0H Compare
Q275 Compare
STKR400 Compare
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C350 Compare

Verwandt Materials

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Frequently Asked Questions

Können A500 Gr B tubing sein heiß-dip galvanized?

Ja, A500 Gr B ist routinely heiß-dip galvanized. Der silicon content sollte ideally sein unter 0.04% oder zwischen 0.15-0.25% für optimal coating thickness und appearance. Silicon levels von 0.04-0.15% können produce excessively thick, dark, und brittle galvanized coatings. Wenn galvanizing ist planned, specify der silicon bereich zu der mill oder service center.

References & International Standards

  • ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
  • International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
  • American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
  • European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu