Stainless steel hollow bars

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Product Outer diameter Wall Inside diameter Grade Availability Price

Stainless steel seamless tube hollow bar DN200 Ø 190mm x 15mm in grade 1.4307 S-RR-MZ4/190.00X15.00/1.4307_P DN200 / 190.00mm 15mm 160.00mm 1.4307 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 200mm x 25mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/200.00X25.00/1.4307_P DN200 / 200.00mm 25mm 150.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 212mm x 41mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/212.00X41.00/1.4307_P DN200 / 212.00mm 41mm 130.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 224mm x 22mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/224.00X22.00/1.4307_P DN200 / 224.00mm 22mm 180.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 224mm x 22mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/224.00X22.00/1.4404_P DN200 / 224.00mm 22mm 180.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 224mm x 42mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/224.00X42.00/1.4307_P DN200 / 224.00mm 42mm 140.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 236mm x 23mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/236.00X23.00/1.4307_P DN250 / 236.00mm 23mm 190.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 236mm x 23mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/236.00X23.00/1.4404_P DN250 / 236.00mm 23mm 190.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 236mm x 43mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/236.00X43.00/1.4307_P DN250 / 236.00mm 43mm 150.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 240mm x 35mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/240.00X35.00/1.4307_P DN250 / 240.00mm 35mm 170.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 250mm x 25mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/250.00X25.00/1.4307_P DN250 / 250.00mm 25mm 200.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 250mm x 25mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/250.00X25.00/1.4404_P DN250 / 250.00mm 25mm 200.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 170mm x 15mm in grade 1.4307 S-RR-MZ4/170.00X15.00/1.4307_P – – 140.00mm 1.4307 in delivery Ask about delivery

Stainless steel heat-resistant seamless tube hollow bar DN100 Ø 114,3mm x 10mm in grade 1.4841 S-RR-MZ1/114.30X10.00/1.4841_P DN100 / 114.30mm 10mm 94.30mm 1.4841, heat-resistant in delivery Ask about delivery

Stainless steel heat-resistant seamless tube hollow bar DN125 Ø 133mm x 10mm in grade 1.4841 S-RR-MZ1/133.00X10.00/1.4841_P DN125 / 133.00mm 10mm 113.00mm 1.4841, heat-resistant in delivery Ask about delivery

Stainless steel heat-resistant seamless tube hollow bar DN150 Ø 159mm x 10mm in grade H25T (equivalent 1.4749) S-RR-MZ1/159.00X10.00/H25T_P DN150 / 159.00mm 10mm 139.00mm H25T, heat-resistant in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN50 Ø 57mm x 10mm in grade 1.4571 / 316Ti S-RR/057.00X10.00/1.4571/NL_P DN50 / 57.00mm 10mm 37.00mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN90 Ø 100mm x 10mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR/100.00X10.00/1.4301_P DN90 / 100.00mm 10mm 80.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,08mm x 10,31mm in grade 1.4301 / 304H S-RR/219.08X10.31/1.4301/NL_P DN200 / 219.08mm 10.31mm 198.46mm 1.4301, 304H in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 10,31mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/219.10X10.31/1.4307_P DN200 / 219.10mm 10.31mm 198.48mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 10,31mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/219.10X10.31/1.4404_P DN200 / 219.10mm 10.31mm 198.48mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 10,97mm in grade 1.4301 S-RR-MZ1/168.30X10.97/1.4301_P DN150 / 168.30mm 10.97mm 146.36mm 1.4301 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 10,97mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/168.30X10.97/1.4307_P DN150 / 168.30mm 10.97mm 146.36mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 10,97mm in grade 1.4571 / 316Ti S-RR/168.30X10.97/1.4571/NL_P DN150 / 168.30mm 10.97mm 146.36mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN250 Ø 273mm x 11mm in grade TP316L S-RR/273.00X11.00/1.4404_P DN250 / 273.00mm 11mm 251.00mm TP316L in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 114,3mm x 11,13mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/114.30X11.13/1.4404_P DN100 / 114.30mm 11.13mm 92.04mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN80 Ø 88,9mm x 11,13mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/088.90X11.13/1.4307_P DN80 / 88.90mm 11.13mm 66.64mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 125mm x 12,5mm in grade 1.4301 / 304 / 304L S-RR/125.00X12.50/1.4301/NL_P DN125 / 125.00mm 12.5mm 100.00mm 1.4301, 304… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 125mm x 12,5mm in grade duplex S31803 S-RR/125.00X12.50/S31803_P DN125 / 125.00mm 12.5mm 100.00mm S31803, duplex in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 12,7mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/141.30X12.70/1.4307_P DN125 / 141.30mm 12.7mm 115.90mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 12,7mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/141.30X12.70/1.4404_P DN125 / 141.30mm 12.7mm 115.90mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 12,7mm in grade 1.4541 S-RR-MX/219.10X12.70/1.4541_P DN200 / 219.10mm 12.7mm 193.70mm 1.4541 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 106mm x 13mm in grade 1.4301 / 1.4306 / 304 / 304L S-RR/106.00X13.00/1.4306_P DN100 / 106.00mm 13mm 80.00mm 1.4301, 1.4306… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN65 Ø 71mm x 13mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/071.00X13.00/1.4404_P DN65 / 71.00mm 13mm 45.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 114,3mm x 13,49mm in grade 1.4301 S-RR-MZ1/114.30X13.49/1.4301_P DN100 / 114.30mm 13.49mm 87.32mm 1.4301 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 114,3mm x 13,49mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/114.30X13.49/1.4307_P DN100 / 114.30mm 13.49mm 87.32mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 118mm x 14mm in grade 1.4301 / 1.4306 / 304 / 304L S-RR/118.00X14.00/1.4306_P DN100 / 118.00mm 14mm 90.00mm 1.4301, 1.4306… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 160mm x 14mm in grade 1.4301 / 1.4306 / 304 / 304L S-RR/160.00X14.00/1.4306_P DN150 / 160.00mm 14mm 132.00mm 1.4301, 1.4306… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 160mm x 14mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR/160.00X14.00/1.4301_P DN150 / 160.00mm 14mm 132.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN65 Ø 73mm x 14,02mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/073.00X14.02/1.4307_P DN65 / 73.00mm 14.02mm 44.96mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN65 Ø 73mm x 14,02mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/073.00X14.02/1.4404_P DN65 / 73.00mm 14.02mm 44.96mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 14,27mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/168.30X14.27/1.4307_P DN150 / 168.30mm 14.27mm 139.76mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 14,27mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/168.30X14.27/1.4404_P DN150 / 168.30mm 14.27mm 139.76mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN90 Ø 100mm x 14,5mm in grade 1.4301 / 1.4306 / 304 / 304L S-RR/100.00X14.50/1.4306_P DN90 / 100.00mm 14.5mm 71.00mm 1.4301, 1.4306… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 150mm x 15mm in grade 1.4301 / 304 / 304L S-RR/150.00X15.00/1.4301/NL_P DN150 / 150.00mm 15mm 120.00mm 1.4301, 304… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 180mm x 15mm in grade 1.4571 / 316Ti S-RR-MZ4/180.00X15.00/1.4571_P DN150 / 180.00mm 15mm 150.00mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 15,09mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/219.10X15.09/1.4307_P DN200 / 219.10mm 15.09mm 188.92mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN80 Ø 88,9mm x 15,24mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/088.90X15.24/1.4307_P DN80 / 88.90mm 15.24mm 58.42mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN80 Ø 88,9mm x 15,24mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/088.90X15.24/1.4404_P DN80 / 88.90mm 15.24mm 58.42mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 15,88mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/141.30X15.88/1.4307_P DN125 / 141.30mm 15.88mm 109.54mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 15,88mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/141.30X15.88/1.4404_P DN125 / 141.30mm 15.88mm 109.54mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 139,7mm x 16mm in grade 1.4571 S-RR-MZ1/139.70X16.00/1.4571_P DN125 / 139.70mm 16mm 107.70mm 1.4571 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 17,05mm in grade 316 / 316L S-RR/141.30X17.05/316L/NL_P DN125 / 141.30mm 17.05mm 107.20mm 316, 316L in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 114,3mm x 17,12mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/114.30X17.12/1.4307_P DN100 / 114.30mm 17.12mm 80.06mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 106mm x 17,5mm in grade 1.4571 / 316Ti S-RR/106.00X17.50/1.4571/NL_P DN100 / 106.00mm 17.5mm 71.00mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 125mm x 17,5mm in grade 1.4301 / 1.4306 / 304 / 304L S-RR/125.00X17.50/1.4306_P DN125 / 125.00mm 17.5mm 90.00mm 1.4301, 1.4306… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 125mm x 17,5mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/125.00X17.50/1.4404_P DN125 / 125.00mm 17.5mm 90.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 18,26mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/168.30X18.26/1.4307_P DN150 / 168.30mm 18.26mm 131.78mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 18,26mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/219.10X18.26/1.4307_P DN200 / 219.10mm 18.26mm 182.58mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 18,26mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/219.10X18.26/1.4404_P DN200 / 219.10mm 18.26mm 182.58mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN90 Ø 100mm x 18,5mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/100.00X18.50/1.4307_P DN90 / 100.00mm 18.5mm 63.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN100 Ø 118mm x 19mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/118.00X19.00/1.4307_P DN100 / 118.00mm 19mm 80.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 19,05mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/141.30X19.05/1.4307_P DN125 / 141.30mm 19.05mm 103.20mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 141,3mm x 19,05mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/141.30X19.05/1.4404_P DN125 / 141.30mm 19.05mm 103.20mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 200mm x 20mm in grade 1.4571 / 316Ti S-RR-MZ4/200.00X20.00/1.4571_P DN200 / 200.00mm 20mm 160.00mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN90 Ø 90mm x 20mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/090.00X20.00/1.4307_P DN90 / 90.00mm 20mm 50.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 20,62mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/219.10X20.62/1.4307_P DN200 / 219.10mm 20.62mm 177.86mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 20,62mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/219.10X20.62/1.4404_P DN200 / 219.10mm 20.62mm 177.86mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 212mm x 21mm in grade 1.4571 / 316Ti S-RR-MZ4/212.00X21.00/1.4571_P DN200 / 212.00mm 21mm 170.00mm 1.4571, 316Ti in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 21,95mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/168.30X21.95/1.4307_P DN150 / 168.30mm 21.95mm 124.40mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 21,95mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/168.30X21.95/1.4404_P DN150 / 168.30mm 21.95mm 124.40mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 22,23mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/219.10X22.23/1.4404_P DN200 / 219.10mm 22.23mm 174.64mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN90 Ø 95mm x 22,5mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR/095.00X22.50/1.4404_P DN90 / 95.00mm 22.5mm 50.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 219,1mm x 23,01mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/219.10X23.01/1.4404_P DN200 / 219.10mm 23.01mm 173.08mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 180mm x 25mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR/180.00X25.00/1.4404_P DN150 / 180.00mm 25mm 130.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 170mm x 26mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/170.00X26.00/1.4404_P DN150 / 170.00mm 26mm 118.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 200mm x 30mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/200.00X30.00/1.4307_P DN200 / 200.00mm 30mm 140.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN200 Ø 200mm x 30mm in grade 1.4401 / 1.4404 / 316 / 316L S-RR-MZ4/200.00X30.00/1.4404_P DN200 / 200.00mm 30mm 140.00mm 1.4401, 1.4404… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN125 Ø 132mm x 30,5mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR-MZ4/132.00X30.50/1.4307_P DN125 / 132.00mm 30.5mm 71.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 170mm x 32mm in grade 1.4301 / 1.4307 / 304 / 304L S-RR/170.00X32.00/1.4301/NL_P DN150 / 170.00mm 32mm 106.00mm 1.4301, 1.4307… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 170mm x 32mm in grade 1.4307 S-RR-MZ4/170.00X32.00/1.4307_P DN150 / 170.00mm 32mm 106.00mm 1.4307 in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN450 Ø 457mm x 47mm in grade 1.4541 S-RR-MZ1/457.00X47.00/1.4541_P DN450 / 457.00mm 47mm 363.00mm 1.4541 in delivery Ask about delivery

Stainless steel hollow bars are seamless, thick-walled tubes designed for machining. Sizes are given as outside diameter × wall thickness – the filters also let you choose an inside diameter from 27.94 to 366.72 mm.

Choose the steel grade and cut length on each product page.

Stainless steel hollow bars – what are they used for?

A hollow bar is a thick-walled seamless tube – in effect, a bar with a ready-made bore. It replaces solid bar wherever the finished part has to be hollow anyway, saving drilling and boring time, material and tooling.

Typical applications

bearing, guide and spacer bushes,
rings, flanges and sealing components,
valve bodies, fittings and hydraulic parts,
hollow shafts and machine parts for the food, chemical and marine industries.

Standards and choosing a size

Hollow bars for machining are covered by EN 10294-2, and seamless stainless steel tubes by EN 10216-5. When choosing a size, allow for machining stock: the outside diameter of the hollow bar should be slightly larger, and the inside diameter slightly smaller, than those of the finished part.

Why hollow bar instead of solid bar?

When machining solid bar, most of the material ends up as swarf. A hollow bar with the right inside diameter shortens machining time, reduces tool wear and lowers the cost per part – especially for large diameters and more expensive acid-resistant grades.

Stainless steel hollow bars by steel grade

Pick a grade to see only stainless steel hollow bars in that material – with the full list of sizes and a description of the steel. The number next to each grade is the count of items in stock.

Acid-resistant

Austenitic with molybdenum – resistant to pitting and crevice corrosion; for chemicals, processing and chloride environments.

Austenitic stainless

Chromium-nickel without molybdenum – the standard choice for structures, food service and interiors.