Steel Wire Rope
Wire Rope 6X37+IWRC
A 6X37 steel wire rope with an independent wire rope core (IWRC), designed for lifting and rigging applications. It offers high tensile strength and resistance to crushing and fatigue, with nominal diameters from 5mm to 60mm. Available in ungalvanized, galvanized, or stainless steel variants, and multiple tensile strength grades including 1570, 1670, 1770, 1870, and 1960 MPa. The rope is supplied in standard lengths and can be custom cut to order.
- Catalogue Family
- Steel Wire Rope
- Certificates
- EN 10204 3.1 material test certificate on request
CAD files are supplied on request via WhatsApp or email rather than published for open download.
Key Benefits
What Wire Rope 6X37+IWRC Gives You
- Independent wire rope core (IWRC) provides superior resistance to crushing and bending fatigue compared to fiber cores
- High tensile strength grades from 1570 to 1960 MPa allow selection based on load and duty requirements
- Galvanized or stainless steel versions offer corrosion resistance for outdoor, marine, or humid environments
- 6X37 construction balances flexibility and strength for repeated bending over sheaves and drums
- Standard 4:1 design factor applied unless otherwise specified, ensuring safe working load limits are met
- Available in multiple diameters from 5mm to 60mm, covering a wide range of lifting and pulling tasks
- Can be cut to custom lengths to match specific rigging or hoisting equipment needs
Application Scenarios
Where Wire Rope 6X37+IWRC Is Used
- Crane hoisting operations in construction and infrastructure projects where consistent load handling and rope life are critical
- Marine and offshore lifting where exposure to saltwater demands galvanized or stainless steel options
- Mining and drilling rigging where high tensile strength and resistance to abrasion are required
- Industrial plant maintenance where wire rope is used in overhead cranes and hoists with frequent cycles
- Port and logistics operations for container handling and heavy load transfer between vessels and shore
- Steel mill and foundry environments where high-temperature resistance and durability are needed
- Temporary rigging setups requiring reliable, repeatable performance under dynamic loads
Who It Is For
Buyers This Product Is Built For
- Crane operators and rigging supervisors specifying wire rope for overhead hoists and lifting systems
- Marine contractors sourcing corrosion-resistant rope for deck and mooring operations
- Mining and drilling project engineers selecting high-strength rope for hoist and winch systems
- Industrial maintenance teams replacing worn wire rope in plant cranes and hoists
- Logistics and port operators managing container handling and cargo transfer systems
- Rigging distributors stocking a full range of wire rope types and grades for industrial buyers
- Manufacturers of lifting equipment requiring consistent rope performance for integration into their systems
Problems It Solves
Problems This Product Removes
- Rope failure due to core collapse or crushing under repeated bending in high-cycle lifting applications
- Premature wear from abrasion in high-friction environments like steel mills and ports
- Corrosion damage in marine or outdoor settings when using non-galvanized or non-stainless rope
- Mismatched tensile strength leading to overloading or underutilization of the rope in critical lifts
- Inconsistent rope performance when sourcing from multiple suppliers with no standardized testing
- Need to order multiple rope types from different vendors for different parts of a rigging system
- Lack of traceability and certification for safety-critical lifting components
Technical Features
Technical Features
- 6X37 construction with independent wire rope core (IWRC) for enhanced fatigue and crush resistance
- Nominal diameters from 5mm to 60mm, with standard lengths available and custom cutting on request
- Tensile strength grades: 1570, 1670, 1770, 1870, and 1960 MPa for selection by load and duty
- Available in ungalvanized, galvanized, or stainless steel for environmental resistance
- Minimum breaking load values provided for each diameter and grade combination
- Standard 4:1 design factor applied unless otherwise stated, with WLL stamped on the rope
- Traceability marking and WLL stamped on the rope for field identification and compliance
Specifications
Wire Rope 6X37+IWRC Specifications
Values published in the Kailipu catalogue for this item. Anything not listed is available on request.
| Nominal Diameter | 5mm to 60mm |
|---|---|
| Construction | 6X37 IWRC |
| Tensile Strength Grades | 1570 1670 1770 1870 1960 MPa |
| Core Type | Independent Wire Rope Core (IWRC) |
| Material Options | Ungalvanized Galvanized Stainless Steel |
| Minimum Breaking Load | Values provided per diameter and grade in source table |
| Working Load Limit | Stamped on rope for traceability |
| Standard Lengths | Available in standard lengths, custom cutting on request |
Full size table on request. The catalogue publishes a full dimension and capacity table for this item. Ask on WhatsApp or by email and we will send it as a PDF.
Materials
Materials And Finishes
- High-carbon steel wire for tensile strength and durability
- Independent wire rope core (IWRC) for improved resistance to crushing and bending fatigue
- Galvanized steel for corrosion protection in outdoor or marine environments
- Stainless steel for high corrosion resistance in aggressive or wet conditions
- Surface treatments applied to match environmental and safety requirements
Manufacturing Process
How This Product Is Made
1Wire drawing to precise diameter and tensile specifications
2Stranding of 6 outer strands around the IWRC core
3Tensioning and laying of the rope to maintain consistent pitch and structure
4Surface treatment: ungalvanized, galvanizing, or stainless steel finish as ordered
5Proof load testing on production batches
6WLL and traceability marking stamped on the rope
7Packing and labeling for export or warehouse storage
Quality Control
Quality Control On Every Batch
- Proof load testing on production batches before release
- Dimensional tolerance check against published diameter and length specs
- Breaking strength validation to confirm minimum breaking load values
- Material Test Certificate to EN 10204 3.1 supplied with orders
- WLL and traceability marking verified on each rope
- Third-party inspection accepted at the China warehouse before shipment
- Free quality inspection available in the Qingdao warehouse before export
Customisation
Customisation Options
- Custom cutting to specified lengths for exact fit in rigging systems
- Custom marking of WLL and traceability data as required
- Private label and OEM marking available on request
- Finish options: ungalvanized, galvanized, or stainless steel
- Packing configuration tailored to customer warehouse or retail needs
Compare
How It Compares With The Alternatives
An honest read on where this pattern wins and where another one would serve you better.
| Alternative | Honest Trade Off |
|---|---|
| 6X19 IWRC | 6X37 offers better flexibility and fatigue resistance than 6X19 but has slightly lower tensile strength per unit diameter |
| Fiber Core (FC) | IWRC provides higher crush resistance and longer life under repeated bending, but is stiffer than FC |
| Galvanized Rope with FC | IWRC version has better strength and durability, especially under heavy or dynamic loads |
| Stainless Steel 304 | Standard carbon steel IWRC has higher tensile strength, but stainless is better for extreme corrosion environments |
| 6X37 with IWS | IWRC version has higher breaking strength and better resistance to crushing than IWS (Independent Wire Strand) core |
Use Guide
How To Use And Inspect Wire Rope 6X37+IWRC
- Match the stamped WLL to the calculated load, not the hoist or crane rating
- Inspect the rope before each use for broken wires, kinks, or core protrusion
- Avoid sharp bends or contact with rough edges that can damage the outer wires
- Use proper sheaves and drums with diameter at least 20 times the rope diameter
- Replace the rope if the WLL marking is illegible or the rope shows visible damage
- Store in dry, covered conditions to prevent corrosion, especially for galvanized and ungalvanized types
- Do not reuse rope that has been subjected to overload or impact loading
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Answers
Wire Rope 6X37+IWRC FAQ
What tensile strength grades are available?
Available in 1570, 1670, 1770, 1870, and 1960 MPa grades, selected based on load and duty requirements.
Can the rope be cut to custom length?
Yes, custom cutting to specified lengths is available on request to match your rigging setup.
What finishes are offered?
Available in ungalvanized, galvanized, and stainless steel versions for different environmental conditions.
Are Material Test Certificates provided?
Yes, a Material Test Certificate to EN 10204 3.1 is supplied with each order on request.
Is the WLL stamped on the rope?
Yes, the Working Load Limit and traceability marking are stamped on the rope for field identification.
What is the standard design factor?
A standard 4:1 design factor is applied unless otherwise specified in the order.
Can you provide private label or OEM marking?
Yes, custom marking including private labels and OEM branding is available for bulk orders.
Need A Quote On Wire Rope 6X37+IWRC
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