SI 739 — Steel bars with improved bond for concrete reinforcement

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SI 739 is the Israeli Standard commonly specified for ribbed (improved-bond) steel reinforcing bars used in reinforced concrete. To match this to your program, talk with our team.

What SI 739 Covers

It is referenced in project specifications and laboratory reports for ribbed rebar, defining the mechanical requirements verified by tensile and bend testing.

How the Test Is Run

A rebar sample is pulled to failure with high-force grips, and yield, tensile strength, and elongation are checked; bend tests confirm ductility.

Why It Matters

Rebar verification underpins reinforced-concrete safety; high-force serrated grips and a bend fixture sized to the bar are essential.

Reading the Designation

Cited as SI 739 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.

Related Standards

JIS G 3112 and BS 4482 are related concrete-reinforcement specifications.

Request a Quote

Setting up reinforcing bar testing to SI 739? Request a quote and our team will help you build a system matched to your bar size and grip type.


TensileMill CNC products for SI 739

Our specimen-preparation systems and testing equipment compatible with SI 739:


Build your SI 739 workflow with TensileMill CNC

TensileMill CNC helps labs run SI 739 with repeatable, audit-ready results. For this work we supply high-capacity frames and fixtures for compression and flexural testing. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.