Polished Stainless Steel Button Chock | Mirror Polished Mooring Rope Guide for

Product Specification

Polished Stainless Steel Button Chock | Mirror Polished Mooring Rope Guide for Inland, Yacht and Workboat Mooring

Product Overview

The polished stainless steel button chock is a compact mooring rope guide for vessels that need a smooth rope-contact surface, corrosion-resistant stainless material, and a clean polished appearance. It is suitable for lake vessels, inland river boats, yachts, official service boats, workboats, patrol boats, and coast guard boats, especially for projects in the Americas where stainless deck fittings and polished mooring hardware are commonly requested.

The chock can be supplied in SUS304 or SUS316 stainless casting, with polished, heavy polished, or mirror polished surface treatment. Rope-contact radii and section-changing areas should be smoothly finished and free from burrs to help reduce rope cutting, local abrasion, and stress concentration. Silica sol casting, sodium silicate casting, heat treatment, material mechanical testing, dye penetration testing, FEA review, and pull test can be arranged according to the confirmed order scope and project requirement.

Quick Specifications

• Product type: polished stainless steel button chock → compact mooring rope guide for vessel mooring points requiring a smooth stainless finish.
• Main application: lake vessels, inland river boats, yachts, official workboats, patrol boats, and coast guard boats → suitable for visible deck hardware and small to medium vessel mooring arrangements.
• Size supplied: 14 in type or customized → the supplied dimensions A to G are used for layout checking and quotation confirmation.
• Main size reference: A 16.5 in (419.1 mm), B 14 in (355.6 mm), C Ø14 in (Ø355.6 mm) → key dimensions for webpage drawing and installation space review.
• Material option: SUS304 or SUS316 stainless casting → final grade should be selected according to vessel specification, water environment, and owner requirement.
• Surface treatment: polished, heavy polished, or mirror polished → improves appearance and helps create a burr-free rope-contact surface.
• Casting workmanship: silica sol casting or sodium silicate casting → process should be confirmed according to surface finish, dimensional tolerance, cost, and delivery requirement.
• Inspection and engineering support: material mechanical test, heat treatment record, dye penetration test, FEA calculation, and pull test → available according to project requirement.

Main Technical Parameters

Selection & Inquiry Guide

Step 1: Confirm stainless steel button chock type, 14 in size or customized size, and whether dimensions A to G match the vessel drawing.

Step 2: Confirm vessel type and service area: lake vessel, inland river boat, yacht, service workboat, patrol boat, coast guard boat, or other project application.

Step 3: Confirm material requirement: SUS304, SUS316, stainless casting grade, any stainless plate component, and material traceability requirement.

Step 4: Confirm surface finish: polished, heavy polished, or mirror polished, including visual standard, sample photo, or required roughness if applicable.

Step 5: Confirm inspection and certificate scope: mill certificate, material property test report, heat treatment record, dye penetration test, C;ass approval, FEA calculation, and pull test if required.

Step 6: Provide quantity, installation position, drawing or photo, rope size and load basis if available, delivery destination, and required delivery time.

Structure

Cast stainless steel button body | Rounded rope-contact surface | Smooth section transition | Polished or mirror polished finish | Deck or bulwark installation interface to be confirmed | Optional inspection and test scope

Casting, Polishing & Engineering Advantages

• Polished stainless steel construction is suitable for visible mooring areas on yachts, workboats, patrol boats, inland vessels, and coast guard boats where corrosion resistance and appearance are both procurement concerns.
• Rounded rope-contact profile and burr-free finishing help reduce sharp local contact that may cut, scrape, or locally damage mooring ropes.
• Smooth radius and section-changing areas help reduce local stress concentration; FEA-based strength review can be provided when the project requires engineering verification.
• Silica sol casting can be selected when a better casting surface and finer finishing basis are required, while sodium silicate casting can be discussed according to cost and production requirements.
• SUS304 can be considered for freshwater and general service when accepted by the project specification; SUS316 can be selected when higher corrosion resistance is required by the owner or operating environment.
• Heat treatment and material mechanical testing can be arranged according to the selected stainless casting grade and the order inspection plan.
• Dye penetration testing is suitable for checking surface-breaking indications on polished stainless casting surfaces when specified by the customer or inspection plan.
• Pull test can be arranged according to project requirement; test load, load direction, fixture arrangement, and acceptance criteria should be confirmed before quotation.

Custom Attributes

• Product Name: Polished Stainless Steel Button Chock → mooring rope guide with smooth rounded button profile.
• Model Type: Stainless steel button chock → 14 in type or customized size according to vessel drawing.
• Material: SUS304 / SUS316 stainless casting → the SUS306 wording in the supplied data should be confirmed before final datasheet release.
• Casting Workmanship: silica sol casting / sodium silicate casting → process selected according to surface quality, tolerance, and budget requirement.
• Surface Finish: polished / heavy polished / mirror polished → finish level should be confirmed by sample photo or visual requirement.
• Inspection: material mechanical test / heat treatment / dye penetration test if required → inspection scope follows order and project approval requirement.
• Engineering Support: FEA strength calculation and pull test available → load case, rope direction, and acceptance criteria must be confirmed before quotation.
• Certificate: Class approval and mill certificate available upon request → not assumed as standard delivery unless included in the order scope.
• Installation: deck or bulwark mounting to be confirmed → surrounding structure, weld / fastener method, and reinforcement should be checked by drawing.

How It Works

Mooring rope approaches the chock → Rounded polished button profile guides the rope → Burr-free contact surface reduces local abrasion → Local rope force is transferred to the vessel structure through the installed chock → Inspection or test scope is confirmed according to project requirement

Applications

Lake vessels in the Americas | Inland river boats | Yachts | Official workboats | Patrol boats | Coast guard boats | Small service vessels | Marina and harbor mooring positions | Newbuilding and replacement projects

Certifications & Advantages

Certificates can be arranged according to project requirement, inspection scope, material traceability, and class or owner approval procedure.

Certification:, Makers Test Certificate. class approval, mill certificate, and material property test report are available upon request according to order scope.

Drawing & Photos

FAQ

Q1: Should SUS304 or SUS316 be selected for a stainless steel button chock?

A1: SUS304 can be considered for freshwater lake and inland river service when accepted by the vessel specification. SUS316 is normally selected when higher corrosion resistance is required, especially for coastal service, salt spray exposure, or stricter owner requirements. Final material grade should follow the project specification.

Q2: Can the button chock be supplied with a mirror polished finish?

A2: Yes. Polished, heavy polished, and mirror polished finishes can be supplied. The required finish should be confirmed with a surface sample, reference photo, or visual acceptance requirement because mirror polishing affects production process, inspection, and cost.

Q3: Can FEA calculation and pull test be provided?

A3: Yes. FEA strength calculation and pull test can be arranged according to project requirement. The rope direction, expected load basis, test load, fixture arrangement, and acceptance criteria must be confirmed before quotation.