Grade 80 Black Alloy Steel Link Chain for Lifting

Name: Grade 80 Black Alloy Steel Link Chain for Lifting
Brand: Qingdao Haosail Machinery Co., Ltd
SKU: 2195416475

Shandong, ChinaQingdao Haosail Machinery Co., Ltd

US$0.10-10.50

100 Meters

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Usage

Transmission Chain, Lifting

Material

Alloy

Model NO.

G80 Chain

Surface Treatment

Electroplating

Feature

Heat Resistant

Chain Size

4mm-32mm

Structure

Welded Chain

Color

Galvanized

Standard

En818

HS

73158200

Customized Service

OEM ODM

Delivery Time

20days

Transport Package

Drum on Pallet

Specification

4mm-32mm

Trademark

HAOSAIL

Origin

China

HS Code

73158200

Production Capacity

20000t/Year

Key features

High Strength Grade 80: Premium alloy steel with heat treatment for exceptional strength and toughness.

Wide Size Range: Available in sizes from 4mm to 32mm to suit various lifting loads.

Corrosion Resistant: Galvanized or painted surface treatment for harsh outdoor and humid environments.

Safety Compliance: Meets ISO 3077 and EN 818-2 standards with clear G80 and WLL markings.

OEM ODM Service: Flexible customization options including samples, designs, and full customization.

Fast Delivery: Standard delivery time of 20 days for efficient project scheduling.

Professional Support: Dedicated team provides solutions for quality issues within 24-48 hours.

Company profile

Importers and ExportersODM ServicesManagement Certification100% Finished Products Inspection

Qingdao Haosail Machinery Co., Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.22h

AI-Powered supplier vetting

SummaryHaosail demonstrates broad equipment-related business scope, documented quality and service procedures, ISO9001:2015 certification, four production lines, and 50 quality-control staff. It offers extensive customization, ODM and OEM services, reports new products within the past year, and has two years of total R&D engineer experience stated. Overseas support includes warehouses, showrooms, agents or branches, installation, debugging, maintenance, repair, and training. Export sales account for 90%, with stated lead times within 15 workdays in both peak and off-season. Financial records are indicated for 2022–2024, but no financial figures or performance evidence are provided. Customer cases and specific customer references are not supplied.

Supplier typeThe stated business scope includes sales of mechanical equipment, metal chains and other metal products, marine aquaculture equipment, pumps and vacuum equipment, automotive spare parts, and electronic products. This supports classification as a diversified equipment and industrial-products supplier, but the slice does not identify a narrower legal or manufacturing category.

CertificationsThe supplier reports holding an ISO9001:2015 certificate. This is explicit evidence of a quality management system certification, although the provided information does not include the certificate body, validity period, or scope.

After-Sales capabilityThe supplier reports written and followed procedures for complaint handling, corrective and preventive actions, and service capability assessment. It also states that overseas warehouses, showrooms, agents or branches, and services including installation, debugging, maintenance, repair, and training are available; stated service lead time is within 15 workdays in both peak and off-season.

R&D capabilityThe supplier reports new products within the past year, ODM capability, an available SDK, ERP-based digital management, and ongoing enterprise digitalization. These statements support active R&D and digital-transformation capability, although the limited stated total R&D engineer experience of two years prevents a stronger assessment of technical depth.

Production capacityThe supplier reports four production lines, 50 quality-control staff, multiple machines covering heading, wrapping, heat treatment, netting, welding, and dynamometer testing, and uniformly followed finished-product inspection instructions. It also reports qualified service suppliers, overseas service resources, and lead times within 15 workdays, providing explicit evidence of operational capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, directly supporting a broad product-development and customization offering.

Product Q&A

Q:What is the Working Load Limit (WLL) of a G80 chain?

The WLL of G80 chain varies by its diameter. For example, a 6mm G80 chain typically has a WLL of around 1.8t, while a 20mm one can reach up to 12t. Always check the chain's markings-legitimate G80 chains clearly stamp WLL, "G80," and manufacturer info. Never exceed WLL, as it risks chain failure.

Q:Can G80 chain be used in outdoor or humid environments?

Yes, but it requires corrosion protection. Most G80 chains come with galvanized (hot-dip or electro-galvanized) or painted surfaces to resist rust from moisture, rain, or sea air. However, avoid prolonged exposure to strong chemicals (e.g., acids) or saltwater without extra maintenance. After use in wet conditions, clean the chain with fresh water and dry it to extend its life.

Q:How often should I inspect a G80 chain, and what should I look for?

Inspect it before every use and conduct a detailed inspection (per manufacturer guidelines) every 3 months or after 500 hours of use. Key checks: Visible damage: Cracks, bent links, or distorted hooks (if used with fittings). Wear: Measure link thickness-if it's worn down by 10% or more of the original size, replace the chain. Stretching: If links are elongated by 5% or more, discard the chain. Missing markings: Unmarked chains are unsafe to use, as WLL and grade can't be verified.