AS 1528: COMMENTARY ON PROPOSED CHANGES
The AS 1528 integrated suite of standards (Stainless Steel Tubes and Tube Fittings for Food Processing and Hygienic Applications) was released for public comment last month. Chairman of the FT-027 Committee, Peter Moore, has kindly provided the below commentary for ASSDA Members to summarise the significant changes proposed in the revision of AS 1528 parts 1 to 4, dated 2001. The commentary is designed to be read in conjunction with the draft standards open for public comment, which close on 4 January 2019 (deadline extended from 26 December 2018).
To access the draft standards and submit comments, please click on the following link (you will find the links to the AS 1528 draft standards towards the the bottom of the table):
It will request you to log in to the 'Standards Hub' by either using your existing public or committee login. If you do not have one, it is simple to register and create a public user account. You do NOT have to separately get the draft(s) from SAI Global. Instructions on how to comment are provided upon log in. Please note, comments for each four parts of the AS 1528 standard must be submitted separately.
Commentary is provided as below.
The title now includes “hygienic applications” in addition to food processing. This recognises the wider range of applications in which these products are now already used.
The reference to duplex stainless steels has been removed. In practice all tube and fittings referenced by these standards are austenitic.
Inner tube surface roughness has been set as 0.8µm Ramaximum; This is consistent across all four parts of the standard and is also consistent with US and European specs. From a cleanability perspective it was believed this is adequate.
Consistent working pressures and temperature ranges have been given for all tube and fittings, with the exception of clamp fittings above 152.4mm.
Part 1 (Tube)
The main change is the wall thickness tolerance. This was previously set at +0/-0.10mm, a highly unusual and unnecessarily tight tolerance. Opening the tolerance out to the more usual ±10% gives the tube manufacturers more scope for economical strip purchase without compromising application or fabrication; This tolerance matches those of the matching fittings.
The range of standard sizes has been expanded down to 6.35mm and up to 304.8mm OD (12”) and wall thicknesses established as standard now include a range from 0.9mm to 3.0mm, not just a single WT (previously 1.6mm for all sizes except for 2.0mm at the previously upper OD of 203.2mm). It is not anticipated that there will be a sudden move away from the usual 1.6mm and the common OD range, but it was believed that there is some industry need for the expanded size range.
A small change has been made to clarify the length tolerance.
There is now a specified maximum roughness for the inner weld bead, specified as an “Rt”. This is an unusual specification and the committee is particularly interested in any viewpoints on this.
For the first time there is a stated limit for inner weld surface heat tint. Again this aligns with American and European standards and much research work.
Part 2 (Screwed Tube Couplings)
The main change is a complete re-structuring to make the standard more easily referenced. The two fundamental types – RJT and IDF / Trapezoidal are clearly separated, with all dimensional specifications included in Sections 2 and 3. Section 1 deals with the requirements common to both types.
Guides for expanding both types are retained, but the guide for welding was considered redundant as this is adequately covered elsewhere and has been removed.
An RJT blank hexagonal nut has been added, as has an IDF blank cap.
All dimensions and particularly tolerances have been reviewed and many have been revised for consistency.
Two alternative designs are given for orbital welding of welded-type liners.
Part 3 (Butt Weld Tube Fittings)
The range of sizes has been increased up to 304.8mm for the products where these are in fact now available.
Nominal wall thicknesses for these larger sizes now include the options for 2.0, 2.5 and at the top end 3.0mm.
The standard makes it clear that bends are supplied with straight-end extensions as standard, and other fittings are supplied without. The opposite options are set as available but only “if requested”.
The branch lengths of reducing tees and crosses have been clarified. The previous edition gave a specification for this that was in some cases contradictory and in all cases confusing. The new requirement is that the branch length, measured as the extension beyond the run surface, is the same as the branch OD.
Cross fittings, equal, reducing and pulled, have been added.
Equal radius tees have also been included for the first time.
45° Tees have also been added for the first time.
Y-pieces have had their dimensions corrected (an error in the previous 2001 edition) and now more comprehensively dimensioned.
“H” dimensions – a measure of the overall height of the fitting – have been included for the first time. This dimension is very simple to measure without complex metrology equipment and may be of more use in the real world than centre-to-end dimensions.
Reducers, both concentric and eccentric, now include the option of a short parallel extension to enable orbital welding.
Reducers are now standard as “short reducers”, with the “full flow” reducers still specified but in the absence of request the standard type would be short.
Reducer dimensions are now fully detailed in a table.
A full review of dimensional tolerances has resulted in a comprehensive tolerancing table.
Part 4 (Clamp Tube Fittings)
An end cap has been added.
The range of sizes has been increased up to 304.8mm and down to 6.35mm for the products where these are in fact now available.
A “Type A” groove detail has been included for 6.35 mm to 19.05 mm OD fittings.
A “Type C” gasket has also been added for these very small sized fittings.
New appendices cover a very useful description of clamp conditions for correct installation (App C), specification of grooves for expanded-type clamp liners (App D) and the method for expanding (App E).
Thank you for your support of ASSDA, and we encourage all those involved to contribute your feedback and expertise in the review of the AS 1528 suite of standards.
AS 1528 NOW OPEN FOR PUBLIC COMMENT
ASSDA is pleased to share that the AS 1528 integrated suite of standards has now been released for public comment:
AS 1528.1: Stainless steel tubes and tube fittings for food processing and hygienic applications
AS 1528.2: Stainless steel tubes and tube fittings for food processing and hygienic applications – Screwed tube couplings
AS 1528.3: Stainless steel tubes and tube fittings for food processing and hygienic applications – Butt weld tube fittings
AS 1528.4: Stainless steel tubes and tube fittings for food processing and hygienic applications – Clamp tube fittings
The aim of AS 1528 is to standardise hygienic tube for use in dairy, food and beverage manufacturing, and has been successful in maintaining the required food safety standards in Australia and New Zealand. It is currently the only dimensionally integrated set of stainless steel tube and fitting standards in the world.
It was first issued in 2001 and developed by an ASSDA group of stakeholders in the manufacture, supply, fabrication and use of stainless steel tube and associated fittings in the food manufacturing industries.
Changing industry practice, some existing errors, internal inconsistencies and expansion of sizes required a revision of the standard. A team that was again supported by ASSDA and industry members was led by Peter Moore (Atlas Steels), and the revision took place over an eight-month period.
In December 2017, the committee submitted the proposed revision to Standards Australia for conversion to the published format. The large number of diagrams submitted meant this was a lengthy task for Standards Australia with much of the interaction falling on Technical Consultant Kim Burton. ASSDA is most appreciative of the work by all the members of the revision team.
All four parts of AS 1528 are open for public comment, with the comment period closing 4 January 2019 (extended from 26 December 2018).
To access the draft standards and submit comments, please click on the following link (you will find the links to the AS 1528 draft standards at the bottom of the table):
It will request you to log in to the 'Standards Hub' by either using your existing public or committee login. If you do not have one, it is simple to register and create a public user account. You do NOT have to separately get the draft(s) from SAI Global. Instructions on how to comment are provided upon log in.
Please note, comments for each four parts of the AS 1528 standard must be submitted separately.
Thank you for your support of ASSDA, and we encourage all those involved to contribute your feedback and expertise in the review of the AS 1528 suite of standards.
A Look Back at PacRim Stainless 2018
The ASSDA team and the stainless steel industry is still flying high from PacRim Stainless 2018 that took place at QT Gold Coast last week from 3-4 October.
With delegates and speakers from around the world and nation, PacRim Stainless 2018 was a huge success, with the event attracting its highest attendance in over five years. We gathered for two days of education, inspiration and networking in what was ASSDA’s 25th National Conference.
Stainless Steel Trends in Modern Architecture and Urban Infrastructure was this year’s conference theme, and the program offered an exceptional line-up of speakers who shared their experience and expertise in architectural facade trends, new grades and technologies, recent project highlights, economic overviews, perspectives on global and local stainless steel market direction, and a good reminder on the importance of workplace health and safety.
Thank you to all speakers who joined our program: Jörn Teipel (Outokumpu), Darren Wills and Leif Ho (Kinzi Group), Clive Whittington (C.M. Whittington & Associates), Louis Victor Blain (Weld Australia), Gordon Heald (Fabmetal Specialists), Peter Munckton (BOQ), Jim Lennon (Red Door Research/Macquarie Capital), Mark Ellis (Atlas Steels) and John Ahern (Author of On the Road… With Kids).
The Australian Industry Stainless Steel Supplier and Fabricator Awards is now in its second year and celebrates innovation and excellence in Australian stainless steel supply, design and fabrication. Three individual prestigious awards voted on by the industry were presented at the conference Gala Dinner.
Recognising excellence in supply performance, the Flat Product Supplier of the Year 2018 was awarded to Daming International Import and Export Co., Ltd.
YC Inox Co., Ltd. took out the Long Product Supplier of the Year for the second year in a row.
The Fabricator Project of the Year Award recognises excellence in Australian stainless steel design and fabrication, and nominees were selected from projects featured in Australian Stainless Magazine during 2017 and 2018. Congratulations to Furphy Engineering and TFG Group who both won this award for the fabrication and installation of all stainless steel elements in the new Fuchs Lubricants purpose-built plant in Beresfield, NSW.
The Peter Matheson Industry Service Award was also presented during the dinner to three industry veterans in recognition and appreciation of their commitment and service to the Australian stainless steel industry – Peter Moore for over 30 years of service, Ian Ward for over 31 years of service and Alex Gouch for over 30 years of service.
An afternoon of golf was enjoyed by a small group of delegates at the Glades Golf Course in Robina, with players vying for the Barry Durrant Memorial Trophy. By a quarter of a point, the winners of the 2-ball golf Ambrose for 2018 was Darren Peters (Vulcan Steel) and Nathan Bridge (BRIDCO).
Many thanks goes to our generous sponsors for their support and contribution to the conference, whom without, this event would not be possible: Atlas Steels, Austral Wright Metals, Combilift Australia, Metal Centre Australia and Paige Stainless Fabrications.
Our thanks also to all delegates who attended PacRim Stainless 2018. We already look forward to seeing you all again next year and encourage you to bring your colleagues and make the most of the opportunity to connect with the Australian stainless steel industry.
Mark your diaries for PacRim Stainless 2019: 9-10 October, Sofitel Gold Coast.
ASSDA announces winners of the 2018 Australian Industry Stainless Steel Supplier and Fabricator Awards
The second Australian Industry Stainless Steel Supplier and Fabricator Awards was held on 3 October 2018 as part of ASSDA’s annual PacRim Stainless conference.
Three individual prestigious awards voted on by the industry were presented at the conference Gala Dinner, including ASSDA Flat Product Supplier of the Year, ASSDA Long Product Supplier of the Year, and ASSDA Fabricator Project of the Year.
Both the ASSDA Flat Product Supplier of the Year and ASSDA Long Product Supplier of the Year Awards recognises excellence in supply performance, and the selection of each winner is based on the following criteria: Quality; Delivery and service; Responsiveness and flexibility, and; Competitiveness.
The 2018 nominees for Flat Product Supplier of the Year were Daming International Holdings Ltd, Outokumpu, Stanch Stainless Steel Co., Ltd, YC Inox Co., Ltd, Yue-Seng Industrial Co., Ltd and Yuen Chang Stainless Steel Co., Ltd.
As voted by a committee of ASSDA Distributor Members with the Platinum, Gold and Silver categories, we are pleased to share that the winner of the 2018 ASSDA Flat Product Supplier of the Year is Daming International Holdings Ltd.
The nominees for Long Product Supplier of the Year included Ching Hann Industries Co., Ltd, Froch Enterprise Co., Ltd, Valbruna Australia, Viraj Profiles and YC Inox Co., Ltd.
Taking out the win for the ASSDA Long Product Supplier of the Year is YC Inox Co., Ltd.
The ASSDA Fabricator Project of the Year Award recognises excellence in Australian design and fabrication of stainless steel, and this year’s nominations were selected based on projects featured in Australian Stainless Magazine during 2017 and 2018.
The nominees included the Dulux Merrifield Facility – John Beever Australia, The Arbour (Optus Stadium Park) – Structural Dynamics Australia, Centenary Library – Ancon, Fuchs Lubricants Plant Expansion – Furphy Engineering and TFG Group, and Collins Square (stainless steel columns) - Fabmetal Specialists.
All nominations presented were outstanding, and is a tribute to the high standard and quality of Australian stainless steel design and fabrication.
As voted by a committee of ASSDA Board Members and the ASSDA General Manager, we are pleased to share that the 2018 ASSDA Fabricator Project of the Year is Furphy Engineering and TFG Group for their work in the Fuchs Lubricants Expansion Plant project.
Congratulations to all winners.
Pictured above (from left to right): Tom Moultrie, TFG Group and Stephen Lawrence, Furphy Engineering - 2018 ASSDA Fabricator Project of the Year.
NOTICE OF ANNUAL GENERAL MEETING 2018
The Australian Stainless Steel Development Association's Twenty-Fifth Annual General Meeting will be held at 1.00pm on Wednesday 3 October 2018 in the Sunset Room at QT Gold Coast Hotel, 7 Staghorn Avenue, Surfers Paradise, Queensland 4217.
The QT Gold Coast Hotel is the venue for PacRim Stainless 2018, ASSDA's 25th Annual National Conference and 14th International Forum focusing on the Asia-Pacific Region.
- Call to Order and Roll Call
- SPECIAL RESOLUTION: Amendment of ASSDA Constitution
- Confirmation of Minutes of the Twenty-Fourth Annual General Meeting held on 11 October 2017
- Matters Arising from AGM Minutes, 11 October 2017
- Receipt and Adoption of the 2018 Annual Report
- Election of Office Bearers and Directors:
- Appointments: Appointment of Auditor
- Other Business
Please note, only members of the Association (in good standing) may vote, but all conference delegates are welcome to attend the meeting.
ASSDA BOARD NOMINATIONS: 2018/2019
Stephen Robertson, Amari Metals Australia - President
David Sheedy, Arcus Wire Group - Treasurer
Con Logos, Outokumpu - Director
Howard Seligsohn, Sanwa - Director
Richard Matheson, Nickel Institute - Director
Richard Raper, Australian Pickling & Passivation Service - Director
Stephen Orridge, Vulcan Stainless - Director
Stephen Warnett, Tasman Sinkware - Director