321H Stainless Steel Seamless Pipes & Tubes

170 items in our range, including 85 items available from stock, shipped from our warehouse.

Product OD Wall Grade Availability Price

Stainless steel seamless tube DN15 Ø 21,3mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/021.30X02.60/1.4878_P DN15 / 21.30mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN15 Ø 21,3mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/021.30X03.20/1.4878/NL_P DN15 / 21.30mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN20 Ø 25mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/025.00X02.60/1.4878_P DN20 / 25.00mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 30mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/030.00X04.00/1.4878_P DN25 / 30.00mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 2mm in grade 1.4541 / 1.4878 / TP321 / 321H S-RR-OS/033.70X02.00/1.4878_P DN25 / 33.70mm 2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN32 Ø 38mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/038.00X04.00/1.4878_P DN32 / 38.00mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN32 Ø 42,4mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/042.40X03.20/1.4878_P DN32 / 42.40mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 48,3mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/048.30X03.20/1.4878_P DN40 / 48.30mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 48,3mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/048.30X03.60/1.4878_P DN40 / 48.30mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 57mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/057.00X04.00/1.4878_P DN50 / 57.00mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 2,9mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/060.30X02.90/1.4878_P DN50 / 60.30mm 2.9mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/060.30X02.00/1.4878/NL_P DN50 / 60.30mm 2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/060.30X03.60/1.4878_P DN50 / 60.30mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 4,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/060.30X04.50/1.4878_P DN50 / 60.30mm 4.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN65 Ø 76,1mm x 4,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MX/076.10X04.50/1.4878_P DN65 / 76.10mm 4.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/088.90X03.60/1.4878_P DN80 / 88.90mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 5,49mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/088.90X05.49/1.4878_P DN80 / 88.90mm 5.49mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 108mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/108.00X04.00/1.4878_P DN100 / 108.00mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 108mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/108.00X06.30/1.4878_P DN100 / 108.00mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 4,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/114.30X04.50/1.4878_P DN100 / 114.30mm 4.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/114.30X06.30/1.4878_P DN100 / 114.30mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/114.30X06.30/1.4878_P DN100 / 114.30mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN150 Ø 168,3mm x 4,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/168.30X04.50/1.4878_P DN150 / 168.30mm 4.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube hollow bar DN150 Ø 168,3mm x 10,97mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/168.30X10.97/1.4878/NL_P DN150 / 168.30mm 10.97mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN10 Ø 16mm x 2,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-OS/016.00X02.50/1.4878_P DN10 / 16.00mm 2.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN15 Ø 21,3mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MX/021.30X02.60/1.4878_P DN15 / 21.30mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN20 Ø 22mm x 2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/022.00X02.00/1.4878_P DN20 / 22.00mm 2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/088.90X03.60/1.4878/NL_P DN80 / 88.90mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/114.30X03.60/1.4878/NL_P DN100 / 114.30mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN10 Ø 15mm x 1,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/015.00X01.50/1.4878_P DN10 / 15.00mm 1.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN10 Ø 16mm x 2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/016.00X02.00/1.4878_P DN10 / 16.00mm 2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 108mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/108.00X04.00/1.4541_P DN100 / 108.00mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/114.30X03.60/1.4878_P DN100 / 114.30mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN100 Ø 114,3mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/114.30X04.00/1.4878_P DN100 / 114.30mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN15 Ø 21,3mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/021.30X02.60/1.4878_P DN15 / 21.30mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN150 Ø 159mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/159.00X06.30/1.4878_P DN150 / 159.00mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN150 Ø 159mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/159.00X06.30/1.4878_P DN150 / 159.00mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN150 Ø 168,3mm x 5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/168.30X05.00/1.4878_P DN150 / 168.30mm 5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN150 Ø 168,3mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/168.30X06.30/1.4878_P DN150 / 168.30mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN20 Ø 25mm x 2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/025.00X02.00/1.4878_P DN20 / 25.00mm 2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN20 Ø 26,9mm x 2,9mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/026.90X02.90/1.4878_P DN20 / 26.90mm 2.9mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN200 Ø 219,1mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/219.10X06.30/1.4878_P DN200 / 219.10mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN200 Ø 219,1mm x 8,18mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/219.10X08.18/1.4878_P DN200 / 219.10mm 8.18mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 30mm x 3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/030.00X03.00/1.4541_P DN25 / 30.00mm 3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 30mm x 5mm in grade 321 / 321H S-RR/030.00X05.00/321H/NL_P DN25 / 30.00mm 5mm 321, 321H in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/033.70X02.60/1.4878_P DN25 / 33.70mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MX/033.70X02.60/1.4878_P DN25 / 33.70mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/033.70X03.20/1.4878_P DN25 / 33.70mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/033.70X03.60/1.4878_P DN25 / 33.70mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 3,6mm in grade 321 / 321H S-RR/033.70X03.60/321H/NL_P DN25 / 33.70mm 3.6mm 321, 321H in delivery Ask about delivery

Stainless steel seamless tube DN25 Ø 33,7mm x 4,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/033.70X04.50/1.4878/NL_P DN25 / 33.70mm 4.5mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN32 Ø 42,4mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/042.40X02.60/1.4878_P DN32 / 42.40mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN32 Ø 42,4mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/042.40X02.60/1.4878_P DN32 / 42.40mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN32 Ø 42,4mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/042.40X03.60/1.4878_P DN32 / 42.40mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 44,5mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/044.50X02.60/1.4541_P DN40 / 44.50mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 44,5mm x 4mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/044.50X04.00/1.4541_P DN40 / 44.50mm 4mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 45mm x 5mm in grade 321 / 321H S-RR/045.00X05.00/321H/NL_P DN40 / 45.00mm 5mm 321, 321H in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 48,3mm x 3,68mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/048.30X03.68/1.4878/NL_P DN40 / 48.30mm 3.68mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 48,3mm x 4,05mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/048.30X04.05/1.4878/NL_P DN40 / 48.30mm 4.05mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN40 Ø 48,3mm x 5,08mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/048.30X05.08/1.4878/NL_P DN40 / 48.30mm 5.08mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 2,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/060.30X02.60/321H/NL_P DN50 / 60.30mm 2.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/060.30X03.20/1.4878_P DN50 / 60.30mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN50 Ø 60,3mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-SH/060.30X03.60/1.4878_P DN50 / 60.30mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN6 Ø 12,7mm x 0,91mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/012.70X00.91/1.4878_P DN6 / 12.70mm 0.91mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN65 Ø 76,1mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-AR/076.10X03.60/1.4878_P DN65 / 76.10mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/088.90X03.20/1.4541_P DN80 / 88.90mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 3,2mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/088.90X03.20/1.4878_P DN80 / 88.90mm 3.2mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 3,6mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MX/088.90X03.60/1.4878_P DN80 / 88.90mm 3.6mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube DN80 Ø 88,9mm x 6,3mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR-MZ3/088.90X06.30/1.4541_P DN80 / 88.90mm 6.3mm 1.4541, 1.4878… in delivery Ask about delivery

Stainless steel seamless tube Ø 6mm x 0,5mm in grade 1.4541 / 1.4878 / 321 / 321H S-RR/006.00X00.50/1.4878_P 6.00mm 0.5mm 1.4541, 1.4878… in delivery Ask about delivery

About this grade

Composition, properties, equivalent designations and all products in this grade.

This page lists all pipes, tubes & hollow bars in grade 321H, including those temporarily out of stock. Higher chromium and silicon – retain strength and scaling resistance at high temperatures. More about heat-resistant steels →

Most items are in grades: 321H (170), 321 (167), 1.4541 (166), 1.4878 (166), TP321 (2). Each grade has its own page with the material profile, equivalent designations and the full list of products.

A 3.1 inspection certificate can be added to your order (paid extra, 20 zł). The minimum order value is 15 zł.

321H Stainless Steel Seamless Pipes & Tubes

See also

About this grade