Heléns stocks a wide assortment of roller polished or honed cylinder tubes. Our cylinder tubes have good surface evenness and narrow tolerances. For simple applications, we can offer a wide assortment of bright-drawn cylinder tubes.
Honed/roller polished cylinder
Material E355+SR (St 52 BK + S), EN 10305-2 (DIN 2393) tolerance ISO H8, Ra = max 0.4 mu.
Bright-drawn cylinder tubes
RTU material E355C (St 52-3 BK), EN 10305-2 (DIN 2393), tolerance ISO H9/H10, Ra = max 0.8 mu.
Our hollow sections can be obtained in cold-formed tubes from the warehouse. Hot-formed hollow sections can be delivered directly from the manufacturer or from one of our partners. Cold-formed hollow sections (KKR) manufactured according to EN 10219 with quality S355J2H. The hollow sections are delivered in manufactured lengths of 5, 6, 7, 10 or 12 m.
Welded pipeline tubes intended for pressure, manufactured according to EN 10217-1, with quality P235TR1 or EN 10217-2, P23TGHTC1. Check the original standard for additional information.
Our welded construction tubes are characterized by high concentricity and a high degree of measuring accuracy.
Welded construction tubes
We offer welded cold-formed circular structural tube sections according to EN 10219-1 with quality S235JRH, suitable for hot-galvanizing.
Tubes for construction and milling and turning. Heléns has a complete range of various grades and dimensions to suit your production. In cooperation with leading suppliers, we can offer the best alternatives when it comes to quenched and tempered, case hardened and bearing steel.
Seamless hot rolled tubes
Seamless hot rolled steel tubes according to EN 10210-1 for grade S355J2H and with EN 10297-1 for grade E355+AR, which most closely matches SS 2172-03. The tubes are impact tested at -20 degrees, stamped with the batch number and delivered in manufactured lengths or fixed cut lengths. Tolerances according to EN 10210-2. Certificate according to EN 10204/3.1. can be obtained upon request.
Heléns has a wide range of hollow bars for machining, with good cutting properties. Our stock tubes are manufactured according to ISO 2938 or EN 10294 with guaranteed clean turned sizes.
Manufactured according to EN 10294-1. Material E470. Guaranteed clean turned size after machining with external chucking, applies to lengths up to 3 x OD but maximum 200 mm. The tubes are stamped with the batch number. Certificate according to EN 10204/3.1. can be provided upon request.
[Translate to sv:] Heléns rostfria sortiment används i applikationer där extra höga krav ställs på rör, rördelar och stång. Våra produkter finns i de vanligaste kvaliteterna - i rostfritt; EN 1.4301, EN 1.4307, och i syrafast; EN 1.4404, EN 1.4571 och EN 1.4432.