SI 739 is an Israeli Standard commonly specified for ribbed (improved-bond) steel reinforcing bars used in reinforced concrete construction. It is referenced in project specifications, compliance documentation, and laboratory reports where rebar must meet Israeli market requirements.
If you need help mapping SI 739 to an exact test plan (tensile/ductility, bend performance, identification, and documentation for a specific project), talk with our team about your scope and the edition cited in your documents.
SI 739 (Israeli Standard) — Steel bars with improved bond for concrete reinforcement
SI 739 is used when a specification calls for reinforcing steel bars with enhanced bond behavior (commonly ribbed/deformed bar geometry) for use in concrete. In practice, it is cited alongside broader structural and construction requirements, where rebar compliance supports acceptance of the finished reinforced-concrete element.
Quick Definition
Standard type: Product requirements / specification standard for reinforcing steel bars (commonly ribbed / improved-bond bars) used in concrete.
What it influences most: Rebar acceptance testing, mill documentation review, and traceable reporting for construction QA/QC.
What it does not replace: Project structural design rules and execution requirements (which are typically defined in separate design and construction standards).
What This Standard Covers
SI 739 is commonly used to define what qualifies as compliant reinforcing steel bars intended to be embedded in concrete. The cited scope typically focuses on the reinforcement product itself rather than a single laboratory test method.
Depending on the purchasing and compliance context, SI 739 references can drive requirements around mechanical performance, ductility behavior, and documentation/traceability for reinforcing bar deliveries used on a project.
Why This Standard Matters in Testing
When SI 739 is written into a contract, submittal, or inspection plan, it becomes the basis for deciding whether a rebar lot can be accepted for use. That typically means test results and reports must be clearly tied to the correct bar identification, diameter/size, and the cited edition or project requirement.
For labs and QA/QC teams, the practical goal is consistent, defensible acceptance evidence: correct specimen selection, correct test setup, and reporting that supports traceability for the project file.
Common Materials, Product Types, or Applications Covered
SI 739 is most commonly encountered in construction and infrastructure applications that use reinforcing steel bars in concrete elements, including general building work and regulated construction contexts where Israeli Standards are specified.
Common product focus: Reinforcing steel bars with improved bond characteristics (commonly ribbed/deformed bars) supplied for reinforced concrete work.
Common Test or Verification Workflow
Because SI 739 is typically used as a product compliance reference, verification often combines incoming inspection with mechanical testing and documentation review.
Common workflow steps: Review mill/test certificates and heat/lot traceability; select samples per the project or inspection plan; run mechanical tests typically used for rebar acceptance (for example tensile/ductility checks and bending-related checks when applicable); document results with clear identification and traceability to the supplied material.
Reporting sensitivity: Acceptance criteria and report format often depend on the exact SI 739 edition cited in the contract and any project-specific additions.
Equipment Commonly Used for This Standard
Equipment selection is usually driven by the mechanical verification tasks needed for reinforcing bars, plus the diameter range and expected strength level. In many labs, SI 739-related work is supported by standard rebar mechanical testing capability.
Common equipment: Universal testing machine (UTM) with appropriate rebar grips/fixtures; extensometry or strain measurement as required by the test plan; bending fixtures and supports suitable for rebar sizes; basic dimensional tools for bar diameter and feature checks; sample preparation tools (cutting, marking, and handling) appropriate for steel bar specimens.
If you are matching capacity, grips, and extensometry for your bar size range and strength levels, you can request a detailed quote for a configuration built around rebar workflows.
How to Read This Designation or Revision
Designation: SI 739 is commonly written as “SI 739” in English-language documentation and as “ת"י 739” in Hebrew-language specifications.
Revision sensitivity: Do not assume acceptance limits or test details from the number alone. Procurement documents may cite an edition, amendment, or project-specific requirement that changes what must be tested and how results are evaluated.
Related Standards, Methods, or Frameworks when useful
SI 739 is often referenced alongside other Israeli Standards used in reinforced concrete work, including standards for reinforcement products and broader structural requirements. When you see multiple SI references together, the testing scope is usually split between rebar product compliance, mesh/welded reinforcement requirements, and design/construction rules.
Commonly co-cited (project dependent): SI standards for reinforced concrete design/requirements and companion reinforcement product standards (for example, plain bars and welded mesh references).
Get help selecting an SI 739 testing setup
For SI 739 work, the right setup depends on bar diameter range, target strength level, and the reporting requirements in the job specification. If you want help matching machine capacity, grips, and measurement options to your workflow, contact our team with your bar sizes and the SI 739 citation used in your documents.