We’re a family-owned South Australian manufacturer with more than 40 years of hands-on industry experience. Our approach is simple: make premium-quality products, deliver them on time, and back clients with practical, real-world advice.
With in-house R&D, on-site testing, ISO 9001 QA, ISO Type 5 and WaterMark certification, SA Water approval and a WSAA appraisal, we stand behind every metre we produce. Our team understands site realities — availability, constructability, safety, staging, and deadlines — and we help you deliver with confidence.
We manufacture products and solutions across a wide range of industries:
For potable water, sewer, recycled water, gas, fire mains and industrial pipelines. Sizes: 16mm–630mm. Colours: Blue, Yellow, Cream, Red, Lilac, Black, White Lo-Heat.
Rural poly pipe, Rural Kool white co-ex. Sizes: ¾” – 3.5” (20mm – 90mm). LDPE, Polpro risers, windmill systems and fencing systems.
LDPE poly pipe, dripper tube, polypropylene risers, steel vinstakes, trellis clips, poly wire-ties, bird-net caps and supports.
Orange electrical, white communications and sub-duct conduit for cable protection.
Compression, electrofusion, moulded, fabricated fittings, and backing rings for full pipeline integration.
We supply infrastructure across:
Rural poly pipe, fencing, Polpro risers and windmill hardware engineered for Australian farms, stations and pastoral operations.
Rural “B”, Rural Cool, LDPE, deliver end-to-end stock water and station solutions. ID-sized rural coils, metric PE (potable and recycled water), compression fittings and LDPE options (black, lilac co-ex, white co-ex) support efficient irrigation network builds.
End-to-end vineyard solutions combining metric/rural HDPE mains and LDPE laterals with our specialist accessories: Steel Vinstakes & extension posts, Prudent™ trellis clip system, poly wire-ties, bird-net caps and supports. Designed for long service life, UV stability and quick installation across new plantings and renewals, with fittings to suit block layouts and pump configurations.
Metric HDPE families (potable, sewer, recycled water, fire mains) and non-pressure conduit for trench/open-cut and trenchless programs; full fittings suite for constructability.
Metric HDPE including plain black and white co-ex for dewatering, process water and trunklines, with fabricated fittings and backing rings for site assemblies.
Metric HDPE (blue/black), yellow stripe for gas, cream stripe for sewer, and red stripe for fire main applications, with compression/electrofusion fittings and QA support.
Orange co-ex electrical, white co-ex communications and sub-duct HDPE conduit for cable protection in linear and urban works.
Learn more about the Industries that DM Plastics & Steel has been producing solutions for since 1981.
At DM Plastics & Steel, our values guide every decision—from the workshop to the worksite.
Clear decision-making, honest lead times, accountable delivery, and long-term relationships. These aren’t slogans — they’re how we operate every day on the floor and in the field.
No job is worth doing if it can’t be done safely. Safety is everyone’s responsibility, so we plan, train and operate with a zero-harm mindset and the discipline to stop work when something isn’t right.
We work together to deliver the best outcomes. Collaboration, technical rigour and continuous improvement underpin the quality of our pipe and fittings, and the reliability our customers count on.
We do the right thing and we do what we say we will do. Clear communication, honest lead times and accountable follow-through build trust on every project.
We embrace openness, trust and teamwork. We value diversity and build relationships that are mutually beneficial—within our team, with our partners and across the communities we serve.
DM Plastics & Steel were approached to supply more than 48 km of DN110 Metric White Co‑Ex (Lo‑Heat) SDR21 PN8 polyethylene pipe for the Western Access Road upgrade at Woomera, South Australia. The client required a high‑volume, remote delivery solution...
DM Plastics & Steel delivered a major pipeline supply contract supporting South Australia’s Riverlea Estate residential development. DMP&S supplied and managed delivery of 12 km of DN400 Metric Cream Stripe SDR11 PN16 pipe, manufactured in 13 m lengths to maximise...
From 2023 to 2024 DM Plastics & Steel delivered a major pipeline supply contract for Heathgate Resources’ Beverley Uranium Mine near Wooltana, South Australia. DMP&S supplied and managed delivery of 17 km of DN500 Metric White Co‑Ex (Lo‑Heat) poly pipe...
DM Plastics & Steel were awarded the major supply and delivery contract for the Mod‑Cod project at Iluka Resources’ Jacinth‑Ambrosia mineral sands operation in Yellabinna. Scope comprised 11 km of DN450, DN500 and DN560 Metric Co‑Ex (Lo‑Heat) polyethylene pipe in...
DM Plastics & Steel were awarded the supply and delivery of 1,110 km (over 1.1 million metres) of 75 mm rural polyethylene pipe for a major water and infrastructure project on a remote cattle station in the Barkly Tablelands in...
DM Plastics & Steel were awarded the major supply contract for the Evaporation Ponds project at BHP’s Olympic Dam operation. The scope comprised the supply and delivery of 20 km of DN315 and DN400 Metric White Co‑Ex (Lo‑Heat) SDR13.6 PN12.5...
At DM Plastics & Steel, we understand every project is different. We partner with you, from planning to delivery with transparent communication, safety-first practices and a solutions mindset. Whether you need urgent availability or a custom configuration, our team closes the loop quickly.
When engaging DM Plastics & Steel, you get:
We’ve grown from local manufacturing to a national supplier through trusted logistics and distribution partnerships.
