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IS 3443 : 1980Crane rail sections

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DIN 536-1 · ASTM A759 · JIS E 1103
CurrentSpecializedSpecificationBIMStructural Engineering · Structural Engineering and Structural Sections
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OverviewValues7InternationalTablesFAQ4Related

IS 3443:1980 is the Indian Standard (BIS) for crane rail sections. This standard lays down the dimensions, shape, sectional properties, and mass of crane rail sections (CR series) used for overhead traveling cranes and gantry girders.

Crane rail sections

Overview

Status
Current
Usage level
Specialized
Domain
Structural Engineering — Structural Engineering and Structural Sections
Type
Specification
International equivalents
DIN 536-1:2019 · DIN (Deutsches Institut für Normung), GermanyASTM A759-17 · ASTM International, USAJIS E 1103:1993 · JSA (Japanese Standards Association), JapanGOST 4121-96 · EASC (Euro-Asian Council for Standardization, Metrology and Certification), CIS
Typically used with
IS 1852IS 2062IS 800
Also on InfraLens for IS 3443
7Key values2Tables4FAQs

BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.

Practical Notes
! Crane rails are designated by the letters 'CR' followed by the width of the rail head in mm (e.g., CR 80 has an 80mm head width).
! Always ensure the crane wheel profile matches the chosen crane rail head profile to minimize wear and prevent derailment.
! Sectional properties provided in Table 1 (Area, Ixx, Iyy) must be added to the properties of the supporting gantry girder if composite action is considered, though they are often conservatively ignored in bending resistance calculation.
Frequently referenced clauses
Cl. 2DesignationCl. 3Dimensions and Sectional PropertiesCl. 4Tolerances
Pulled from IS 3443:1980. Browse the full clause & table index below in Tables & Referenced Sections.
steelstructural steel

International Equivalents

Similar International Standards
DIN 536-1:2019DIN (Deutsches Institut für Normung), Germany
HighCurrent
Crane rails - Part 1: Hot-rolled flat-bottom crane rails (type A) - Dimensions, static values and steel grades
Specifies dimensions, tolerances, static values, and material for hot-rolled flat-bottom crane rails (A-rails).
ASTM A759-17ASTM International, USA
HighCurrent
Standard Specification for Carbon Steel Crane Rails
Covers carbon steel crane rails of specified sections, chemistry, and hardness for crane runway applications.
JIS E 1103:1993JSA (Japanese Standards Association), Japan
MediumCurrent
Crane Rails
Specifies the shape, dimensions, mass, tolerances, and material properties for Japanese standard crane rails.
GOST 4121-96EASC (Euro-Asian Council for Standardization, Metrology and Certification), CIS
MediumCurrent
Crane rails. Specifications.
Defines technical specifications, dimensions, and material requirements for crane rails used in crane tracks.
Key Differences
≠Rail Profile Designation: IS 3443 uses designations (e.g., CR 100) that approximate the rail's weight in pounds per yard. In contrast, DIN 536-1 uses designations (e.g., A100) that denote the head width in millimeters.
≠Material Specification Approach: IS 3443 specifies a single material requirement with a minimum tensile strength of 700 MPa. Modern standards like ASTM A759 focus on hardness (e.g., min 248 HBW) and DIN 536-1 specifies various steel grades with guaranteed yield strengths (e.g., S355, S460).
≠Chemical Composition: The specified ranges for chemical elements differ. For example, IS 3443 requires 0.45-0.60% Carbon, whereas ASTM A759 specifies 0.67-0.84% Carbon for its standard rail, indicating different metallurgical philosophies for wear and strength.
≠Dimensional Profiles: While functionally similar, the specific dimensions (height, base width, web thickness) for a given weight or head size are not identical between IS 3443 profiles and those in DIN or ASTM standards, making them non-interchangeable.
Key Similarities
≈Fundamental Scope: All standards are primarily focused on defining the dimensional, sectional, and material properties for hot-rolled steel sections intended for use as crane rails.
≈Basic Profile Shape: The characteristic crane rail profile—a thick, wide head, a vertical web, and a wide flat base—is a common feature across all standards, designed for wheel loads and stability.
≈Information Provided: IS 3443 and its international counterparts all provide essential engineering data, including cross-sectional drawings, dimensions, mass per unit length, and key sectional properties like Moment of Inertia and Section Modulus.
≈Base Material: The specified material in all cases is a form of plain carbon or carbon-manganese steel, selected for its high strength, wear resistance, and suitability for hot rolling.
Parameter Comparison
ParameterIS ValueInternationalSource
Profile Designation LogicBased on weight in lbs/yd (e.g., CR 100 ≈ 100 lbs/yd)Based on head width in mm (e.g., A100 = 100 mm head width)DIN 536-1:2019
Tensile Strength (Material)Minimum 700 MPaGrade-dependent; e.g., Grade S355 has 470-630 MPa, while higher strength grades are available.DIN 536-1:2019
Carbon Content (Material)0.45 – 0.60 %0.67 – 0.84 %ASTM A759-17
Manganese Content (Material)0.80 – 1.10 %0.70 – 1.10 %ASTM A759-17
Mass per Meter (for a ~100 lbs/yd rail)49.6 kg/m (for CR 100)56.2 kg/m (for A75, a profile with a 75mm head)DIN 536-1:2019
Head Width (for a ~100 lbs/yd rail)66.7 mm (for CR 100)75 mm (for A75, a profile of similar weight)DIN 536-1:2019
Straightness Tolerance (Vertical)Shall not exceed 1.0 mm in any 1.5 mClass A: Shall not exceed 0.8 mm in any 2.0 mDIN 536-1:2019
⚠ Verify details from original standards before use

Key Values7

Quick Reference Values
CR 50 mass per meter39.6 kg/m
CR 60 mass per meter54.4 kg/m
CR 80 mass per meter64.4 kg/m
CR 100 mass per meter89.0 kg/m
CR 120 mass per meter118.0 kg/m
Standard lengths10 m and 13 m
Cutting tolerance on length± 50 mm

Tables & Referenced Sections

Key Tables
Table 1 - Dimensions, Sectional Properties and Mass of Crane Rails
Table 2 - Rolling and Cutting Tolerances
Key Clauses
Clause 2 - Designation
Clause 3 - Dimensions and Sectional Properties
Clause 4 - Tolerances

Related Resources on InfraLens

Cross-Referenced Codes
IS 1852:1985Rolling and Cutting Tolerances for Hot Rolled...
→
IS 2062:2011Hot Rolled Medium and High Tensile Structural...
→
IS 800:2007General Construction in Steel - Code of Pract...
→

Frequently Asked Questions4

How are crane rails designated?+
By the prefix 'CR' followed by the nominal head width in mm (e.g., CR 50, CR 80).
What is the standard length in which crane rails are supplied?+
Usually supplied in lengths of 10 m and 13 m, unless specified otherwise by the purchaser.
What is the mass of a CR 80 rail?+
64.4 kg/m as per Table 1.
Does this standard cover the material grade for crane rails?+
No, it primarily covers dimensions and sectional properties. The material specification is typically agreed upon between the manufacturer and purchaser or governed by structural steel codes.

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