Repair Systems — 03 — Facade & External Envelope
Grade 316L stainless steel angle lintel
Supplier reference for grade 316L stainless steel angle lintels for coastal masonry facade remediation on Class 2 strata buildings. Covers Ancon Building Products, Helifix, and state stainless steel fabricators supplying 75×75×6 mm standard and engineer-specified sections for coastal and marine-influenced masonry opening replacement. Structural engineer design mandatory for all lintel replacements.
What is a grade 316L stainless steel angle lintel?
A grade 316L stainless steel angle lintel is an equal angle section used to carry the load of masonry above window, door, and opening in coastal or marine-influenced Class 2 strata building facades. Grade 316L (low carbon, with molybdenum addition) provides full corrosion resistance in chloride-rich coastal environments where galvanised and duplex coated steel lintels will corrode and fail within an unacceptable service period. The standard section for Australian post-war apartment building facades is 75×75×6 mm equal angle.
Supplier Reference
3 suppliers — grade 316L stainless angle lintels — scroll to view all
Ancon 316L Stainless Angle Lintel — 75×75×6 mm standard
Grade 316L stainless steel angle lintel — purpose-designed remedial masonry — AS 4100
System Description
Ancon Building Products is a specialist remedial masonry fixings and lintel supplier offering purpose-designed grade 316L stainless steel angle lintels for coastal and marine facade remediation on Class 2 strata buildings. The standard section is 75×75×6 mm equal angle in 316L — matching the most common existing corroded angle lintel dimension found on post-war Australian apartment buildings. Purpose-designed remedial lintels include engineered bearing pads and are manufactured to consistent section tolerances. Ancon lintels are typically supplied with material test certificates confirming grade 316L. The structural engineer must confirm the 75×75×6 mm standard section is adequate for the specific span and load — do not assume the standard section is sufficient for all openings.
Technical Properties
- Purpose-designed for remedial masonry lintel replacement — consistent section tolerances, engineered bearing details, and material test certificate confirmation
- Grade 316L stainless — full corrosion resistance in coastal and marine environments — maintenance-free service life
- 75×75×6 mm standard section covers the most common angle lintel replacement on post-war Australian apartment facades
Limitations
- Engineer must confirm 75×75×6 mm standard section is adequate for each specific span and loading — do not assume standard section covers all openings
- Confirm grade 316L on material test certificate before accepting delivery — do not substitute 304 stainless in coastal environments
- Heavy lintel for upper floor applications — confirm mechanical handling provisions before ordering
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
Helifix 316L Stainless Angle Lintel — engineered sections
Grade 316L stainless steel angle lintel — Helifix — engineered — coastal / marine
System Description
Helifix is a specialist remedial masonry structural product supplier offering grade 316L stainless angle lintels designed for masonry facade remediation on Class 2 strata buildings in coastal and marine environments. Helifix lintels are engineered to the structural engineer's section requirements — section sizes outside the standard 75×75×6 mm range are available to engineer's specification. Helifix's remedial masonry range includes compatible stainless helical ties, bed joint reinforcement, and fixings — allowing a single supplier system for the full coastal facade remediation scope. Material test certificates confirming grade 316L are available. All welded connections must be passivated by the fabricator before delivery.
Technical Properties
- Engineered sections available beyond standard 75×75×6 mm — suitable for wider or more heavily loaded coastal openings where standard section is inadequate
- Grade 316L stainless — full corrosion resistance in coastal and marine environments — maintenance-free service life
- Compatible with Helifix stainless helical ties and bed joint reinforcement — consistent 316L grade across all remedial masonry products
Limitations
- Engineer must specify the required section for each opening — Helifix supplies to specification; section design is the engineer's responsibility
- Non-standard sections require lead time for fabrication — confirm lead time before committing to programme
- Confirm grade 316L on material test certificate — do not substitute grade 304 for coastal applications
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
State Stainless Fabricators — 316L angle lintel cut to engineer's spec
Grade 316L stainless angle lintel — cut-to-length fabricated — engineer's specification
System Description
State-based stainless steel merchants and specialist fabricators supply grade 316L equal angle cut to length and fabricated to the structural engineer's specification — providing full flexibility on section size, length, bearing plate details, and weld configuration. This route is used for non-standard section sizes, complex bearing details, or projects where the structural engineer requires a specific custom fabrication beyond the range of purpose-designed lintel suppliers. The structural engineer must provide a dimensioned drawing with section size, length, bearing plate dimensions, weld details, and passivation requirements. Always request a material test certificate (MTC) from the stainless steel merchant confirming grade 316L before accepting delivery — grades 304 and 316L are visually identical. Confirm passivation of all welded joints is completed by the fabricator before delivery.
Technical Properties
- Full flexibility on section size and configuration — any equal angle section from the stainless steel merchant's standard range can be specified
- Cut-to-length — fabricated to the exact bearing-to-bearing dimension for each opening from the engineer's drawing
- Material test certificate confirming grade 316L available from the stainless steel merchant — mandatory for coastal applications
Limitations
- No purpose-designed bearing details or engineering documentation from the fabricator — structural engineer must provide complete design drawings
- Material test certificate must be requested explicitly — fabricators will not automatically provide MTC without the contractor specifying this requirement
- Passivation of welded joints is a separate process that must be specified and confirmed — do not assume factory passivation unless confirmed in writing
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
Supplier Comparison
Side-by-side comparison of 316L stainless angle lintel suppliers. Confirm all selections against the structural engineer's design and request material test certificates before accepting delivery.
| Supplier | Product | Grade | Section | Coastal | MTC | Primary use |
|---|---|---|---|---|---|---|
| Ancon Building Products | Purpose-designed angle lintel | 316L | 75×75×6 mm standard | Yes | On request | Standard coastal remedial replacement |
| Helifix | Engineered angle lintel | 316L | Engineer-specified | Yes | On request | Non-standard coastal openings |
| State stainless fabricators | Cut-to-length angle lintel | 316L (confirm MTC) | Any — from drawings | Yes | Request explicitly | Custom fabrication to engineer's spec |
Do not confuse 316L angle lintel with:
- Duplex coated angle lintel — hot-dip galvanised + powder coated steel — suitable for inland or low-exposure coastal, but not adequate for direct coastal or marine environments where 316L stainless is specified
- Galvanised angle lintel — zinc coating only — not suitable for coastal or marine environments; corrodes and fails within 10–15 years in chloride-rich masonry
- Flat bar lintel — lower section modulus than angle — suitable only for shallow rebate openings and spans typically under 2 m; not interchangeable with angle lintel without engineering approval
- Back-to-back angle lintel — two angles bolted together for wide or heavily loaded openings — higher capacity than single angle; confirm with engineer if single angle is adequate for the span
Disclaimer
This page provides general technical information only. Grade 316L stainless steel angle lintel design, section size, grade, bearing length and installation must be specified and certified by a structural engineer against project-specific span, load and coastal exposure conditions per AS 4100 and AS 3700.