Best 30 Cm 50 Mm 2025

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Last Updated - 26.07.2025

Best Choice

01

diconfa

DICONFA Round Steel S355 J2+C - Diameter 50 mm x 300 mm - Diameter 6 mm to 100 mm - Length 10 mm to 1500 mm - Drawn Blank Steel H9 | ST 52 K - 1.0579 | Round Iron Shaft Structural Steel Rod Axle Bolt

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9.8

Exceptional

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Main highlights

Processing: very good to weld, high tensile strength, very easy to machine (turning, drilling, milling, grinding, sawing, etc.), paintable, durable, durable, strong load-bearing capacity, versatile.
Other areas: tool making, automotive industry, electrical industry, car and car repair, scaffolding tuning, replacement shaft, agricultural machinery, tractors, bolt attachments (gripper, wheel loader or shovel)
Material: round steel S355 J2+C // ST-52-K // 1.0579 – precisely processed round rod delivered without rust. The steel bar is absolutely straight and highly precise in diameter/DIN 10277/h9 - tolerance.
Box contents: round steel material S355 J2+C. Diameter: 50 mm, length: 300 mm (30 cm, 0.3 m). The steel rod is exactly straight, deburred on both sides and securely packaged.
Areas of application: machine and plant construction, construction site, DIY, crafts, locksmith work, model making, spare part (bolts + axle, etc.) e.g. construction machinery, tractors, trailers, trucks, construction, industry

35,77 €
02

Heck & Sevdic GbR

Aluminium Round Diameter 50 mm | Length = 300 mm (30 cm) Round Rod for Turning, Milling, Drilling, Sawing

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9.7

Exceptional

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Main highlights

Versatile use for mechanical engineering, model building, electrical industry, trade fair construction, construction, tools, training, RC, manufacturing technology, DIY and professional work.
Tolerances when sawing on length: length = from 25 to 250 mm = approx. + 0 to 3 mm length = from 251 to 1000 mm = approx. +/- 3 mm length = from 1001 to 2000 mm = approx. +/- 5 mm tolerance from outer diameter according to EN 755-4, formerly standardised according to DIN 1799 material group II
Surface: unprocessed/raw - may show storage marks
Aluminium round diameter 50 mm | length = 300 mm (30 cm) - available in lengths from 25 mm - 2000 mm (2.5 cm - 200 cm). Please select your desired length = from the list.
Alloy: AlCu2.5BiMnMg / EN AW - 2033LF for turning, milling, drilling, sawing

33,49 €
03

Heck & Sevdic GbR

AlMgSi05 Aluminium Round Tube Diameter 50 x 2 mm Length 300 mm / 30 cm Cut to Size

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9.6

Exceptional

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The item is individually cut to your selected length. Please select your desired length from the list.
Surface: raw, unprocessed, may have storage marks, length raw sawn, cutting surfaces and edges unprocessed, sharp-edged, with cooling suitable for turning, milling, drilling and sawing. Please note the tolerances: length approx. + 0.0 to 2 mm // Diameter and wall thickness according to EN 573-3 / 755-2 / 755-1 / 755-5 approx. +/- 2% depending on batch
Dimensions: outer diameter 50 mm (5 cm), inner diameter 46 mm (4.6 cm), wall thickness 2 mm
Aluminium round tube AW-6060 50 x 2 mm - alloy AlMgSi05 - available in lengths from 25 mm - 2000 mm / 2.5 cm - 200 cm
Alloy: AlMgSi0.5 / AW-6060 / Alloy components Si0.3-0.6/Mg 0.35-0.6 | Density 2.75 kg/dm³ | Brinnell hardness HB 70-80 | Electrical conductivity m/Ohm x mm² 28-35 | Thermal conductivity W/cm. ~ 1,8 ~6 | Suitable for welding (MIG/TIG/G) with welding additive S-AISi5. Versatile use for mechanical engineering, model building, electrical industry, handrails, balcony railings, exhibition construction, construction, tools, training, RC, manufacturing technology, DIY and professional work.

5,69 €
04

Cosch Edelstahl

Stainless Steel Round Tube V2A Polished 50.0 x 2.0 mm 30 cm

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9.3

Excellent

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Main highlights

The construction tubes are versatile. Whether as a pipe for handrails, balcony railings, in the construction industry or in the field of model making. Our different designs leave no wishes for use.
Technical information about our round tube: outer diameter: 50.0 mm, thickness of the steel: 2.0 mm, length of tube: 30 cm
Cosch Edelstahl Round tubes made of V2A stainless steel (AISI 304) are ground with K240.
After the stainless steel tubes have been cut to size, they are degraded and sanded using belt sanders to remove minor scratches. The tolerance is between 0 and 2.3 mm.
After receipt of order, your tube will be cut to your desired length with a laser-controlled fully automatic machine. This is a personalised product. The possible tube length is between 10 cm and 300 cm.

9,90 €
Value for Money

05

Baumaxxe

PVC Sight Glass with Adhesive Sleeves, 30 cm Tube x 50 mm Sleeves, PVC Sight Glass Kit, Transparent Connector for PVC Pipes and PVC Fittings, BM179

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Suitable for 50mm pipes and connections
Resistant to alkalis, acids, water, salt water, oils and chlorine
Colour: grey / transparent. Material: PVC-U
Areas of application: aquarium; pool, pond and swimming pool construction; sewage and drainage systems; garden irrigation
A PVC sight glass tube with two adhesive sleeves made of durable PVC-U

15,90 €
06

SCHWAIGER

Schwaiger Mast/Balkonausleger Aluminium

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48% Off
9.1

Excellent

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Main highlights

Schwaiger MAL30A antenna mast boom aluminium suitable for mast (max. ): 50 mm mast distance: 30 cm
SCHWAIGER
Contents: 1 item
CONSUMER ELECTRONICS

14,99 € 29,07 €(48% Off off)
07

Generisch

Larch Squared Wood 50 x 50 mm 30 cm Long - Posts, Fence Posts, Wooden Posts, Wooden Beams, Fence Posts, Cross Bars (Pack of 5)

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8.9

Very Good

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Main highlights

We also offer the same variety in lengths from 20 to 300 cm.
Larch squared timber 50 x 50 mm.
You will receive 5 square timbers with a length of 30 cm each.
These lengths, as well as boards, blackboards, KVH - goods in various cross sections, fence slats etc. also from other types of wood such as: teak, spruce, pine, oak etc. can be found in our Amazon shop.
Rough-sawn, natural
Length: 30 cm / 0.3 m

17,60 €
08

Heck & Sevdic GbR

AW-7075 High-Strength Aluminium Round Bar Diameter 50 mm Length 300 mm (30 cm) Cut to Size

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile use for mechanical engineering, model building, electrical industry, trade fair construction, construction, tools, training, RC, manufacturing technology, DIY and professional work.
Surface: unprocessed/raw – may show storage marks, cut surfaces, edges unprocessed
Material: AlZnMgCu1.5 / AlZn5.5MgCu, AW-7075 high strength according to DIN 3.4365, machining - good with cooling, tensile strength Rm min. 540 N/mm² | Density: 2.80 kg/dm³ | Brinnell hardness HB 150 | Welding: only very limited use - only suitable for resistance welding | only partially suitable for powder coating | electrical conductivity m/Ohm x mm² 19-22
Item is cut to the selected length. Tolerances: length approx. + 0.0 to 2 mm. Outer diameter approx. +/- 2% depending on batch
Aluminium high-strength round bar AW-7075 AlZnMgCu1.5 with a diameter: 50 mm - available in lengths from 25 mm - 2000 mm (2.5 cm - 200 cm). Please select your desired length from the list. With cooling suitable for turning, milling, drilling and sawing.

31,37 €
09

diconfa

diconfa Silicone Mat Silicone Plate Made to Measure Thickness 0.5 mm to 10 mm Width / Length 50 mm to 1200 mm Selection: 200 mm x 300 mm x 3 mm (20 cm x 30 cm x 0.3 cm) Transparent Silicone Base

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Use: laboratory, medicine, kitchen, baking, coffee machine, crafts, model making, food industry, sanitary seal, sealing outdoor and indoor use, pets, solar, photovoltaics, etc.
Resistance: very resistant to acids, bases and ozone, well resistant to oil and solvents. Processing: possible with scissors/cutter knife, stencil is recommended
Premium: the silicone plate translucent (milky) is food-safe, FDA compliant, highly stretchy, robust and odourless. Temperature: -60°C to +230°C. Easy to clean with soap and water.
Function: seal, underlay, protective mat, cover, decoupling, insulation (heat, cold), protection surface features: tensile strength: 10 Mpa, elongation: 350%, hardness: 60° shore A
Dimensions: select your desired dimensions – thickness: 3 mm – dimensions: 200 mm x 300 mm (20 cm x 30 cm, 0.2 m x 0.3 m) – length: 50 mm to 1200 mm – width: 50 mm x 1200 m – material thickness: 0.5 mm to 10 mm

9,52 €
10

diconfa

diconfa Rubber Mat 3 mm Thick - Selection Size: 50 mm x 300 mm (5 cm x 30 cm) - 8 mm to 1400 mm Wide - 0.05 m to 10 m Long - Non-Slip Robust Rubber Strips Sold by the Metre Rubber Plate Solid Rubber

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Other applications: rubber pad for industry, crafts, commercial, repair and spare parts, patio construction, conservatory, transport security, trailer, loading area, warehouse and logistics, car
Functions: The diconfa rubber profiles can be used for industry, logistics, trade and private use (e.g. underlay, pad, decoupling, insulation, sound protection, damping, seals etc.)
Dimensions: rubber strips 50 mm (5 cm / 0.05 m) wide – thickness: 3 mm – length: 300 mm (30 cm / 0.3 m) – dimensions simply change via "material" (width) / "size" (length).
Areas of use: construction sites, cars, workshops, home, garden, terrace, horticulture, garage, plumbing, installation, heating, DIY, crafts, model building, mechanical engineering, plant construction, maintenance, etc.
100% quality: the rubber strip SBR is weatherproof, resilient, flexible and versatile. The rubber mats are smooth on both sides, can be easily glued, quality-tested and processed in Germany.

2,66 €