MAX- ALLOY® CHAIN
The complete range of Max-Alloy® chain, including sizes 7mm - 32mm diameters is manufactured in South Africa for both Grade 800 and Grade 1000, while sizes 36mm - 50mm are available in grade 800.
The steel is supplied by a local steel manufacturer in accordance with National and International standards specified for short link lifting chain.
Max-Alloy® is a heat treated, fine grain steel developed for use in chain slings for lifting applications.
Max-Alloy® is a range of heat-treated alloy steel chain speciﬁcally developed and manufactured for use in chain sling lifting applications.
Its superior material and mechanical properties make it suitable for all
safety-critical lifting operations.
GRADE 8 SHORT LINK SMOOTH WELD CHAIN
21A: Year and month of manufacture
34: Chain manufacturing machine number
01: Batch sequence number
H46: DGUV mark number
MA8: Manufacturer code & Grade (Max-Alloy® Grade 8)
GRADE 10 SHORT LINK SMOOTH WELD CHAIN
2022 PRODUCT DEVELOPMENT UPDATE
We have now developed and extended the range of Grade 10 chains to include 26mm and 32mm chains which increases the lifting capacity on those sizes with 25% compared to the same size Grade 8 chains. These sizes are being manufactured on a state of the art robotic cell to the highest quality standards. The advantages of the larger diameter grade 10 chain sizes apart from the ability to be able to carry heavier loads size for size compared to grade 8 chain sizes also have the advantage of using a smaller grade 10 chain size to replace a larger grade 8 chain size. This is a significant advantage from an ergonomically point of view, allowing easier handling of lifting equipment especially in hostile environments. Grade 10 chains are excellent for normal industrial applications although it should be noted that Grade 10 chains are not suitable for general corrosive -and offshore applications.
Manufacturing, Testing & Inspection
All Max-Alloy® products are 100% proof tested at 2.5 times the Working Load limit to ensure weld integrity and compliance with national and international standards
A stringent quality control plan ensures a ﬁt for purpose product with a factor of safety of 4:1.
All measuring and testing equipment is maintained and calibrated at required intervals to ensure reliable
All Max-Alloy® products have full traceability from steelmaking to the end product.
PRODUCT TYPE APPROVALS & MANAGEMENT SYSTEMS
TAS0000333 - MASTER LINKS
QUAD ASSEMBLIES - ZINC TOUGH®
TAS0000335 - CHAIN SLING ASSEMBLIES
TAS0000336 - GRADE 8 SHORT LINK SMOOTH WELD
TAS0000337 - MASTER LINKS, INTERMEDIATE LINKS, QUAD ASSEMBLIES
TAS00001RH - DNV CHAIN SLING ASSEMBLIES - ZINC TOUGH®
ISO 9001:2015 CERTIFIED
Grade 8 chain to EN 818-2
SANS 189:2006 - Short link steel chain (Medium tolerance) for lifting purposes.
SANS 251:2006 - Long link and extra-long link medium tolerance steel chains for general purposes.
SANS 4778:1981- Chain slings of welded construction Grade 4-Grade 8.
SANS 7593:1986-Chain slings assembled by methods other than welding.
GRADE 8 VS GRADE 10: PROS AND CONS
What to consider when choosing between Grade 8 and 10?
* Generally a Grade 10 chain of one chain size smaller than its Grade 8 counterpart is capable of lifting the
same load, which will result in a considerable reduction in sling weight.
**Extreme Heat Conditions
The strength of all chain slings is adversely affected by heat, and care must be exercised when using chain slings at elevated temperatures.
Where the temperatures are likely to be higher than 200 , it will be necessary to de-rate the speciﬁed WLL as per the below WLL reduction guidelines table.
Note: Grade 10 chain is not be used in applications > 200
Max-Alloy® Grade 8 chains and fittings do not require periodic heat treatment and must never be reheated other than by McKinnon Chain.
Max-Alloy® Grade 8 products should not be galvanized or subjected to other plating processes without the approval of McKinnon Chain.
Please contact our Max-Alloy® distributor for detailed recommendations. We are mass chain suppliers.
Max-Alloy® Chain and attachments should not be used in an acidic or any other corrosive environment.