Stainless Steel Round Tube 316L
Welded AISI 316L (1.4404) stainless steel round tube, DIN 11850 / EN 10217-7. Outer diameters from 6 mm to 139.7 mm with wall thicknesses by size. Quote on request; stock lengths by diameter (commonly 2 / 3 / 6 m).
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Available Sizes & Finishes
25 sizes available
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Applications & Selection Guide
Welded round tube in AISI 316L (1.4404) to DIN 11850 and EN 10217-7. 316L adds molybdenum for better resistance to chlorides and pitting, and its low carbon content keeps weld zones corrosion resistant.
It is chosen for coastal and marine installations, pool areas, chemical and pharmaceutical lines and food plants that use salt or aggressive cleaning agents. Outside diameters run from Ø6 mm to Ø139.7 mm with walls of 1–3 mm by size.
Stock lengths are commonly 2, 3 and 6 m, with 1 m on some sizes. Send size, wall, length, quantity and destination in a quote request; we confirm stock, price and lead time.
Technical guides
304 vs 316 stainless steel: composition, strength, corrosion resistance and when to use each
How 304 (1.4301) and 316 (1.4401/1.4404) stainless steel differ in composition, PREN, strength and chloride resistance, what the L grades and A2/A4 fasteners mean, and which grade to choose.
Read the guide →Butt-weld fittings dimensions: elbows, tees, reducers and caps to ASME B16.9 and EN 10253
Centre-to-end dimensions of 90° and 45° elbows, equal tees, reducers and caps to ASME B16.9 for NPS ½" to 24", long and short radius elbows, concentric and eccentric reducers, and how EN 10253 fittings differ.
Read the guide →Stainless steel tube sizes and weights: round, square and rectangular tube in 304 and 316L
Size and weight tables for welded stainless steel round, square and rectangular tube in 304 and 316L: outside diameter, wall thickness and kg/m, the weight formulas, and how tube sizes relate to pipe and fittings.
Read the guide →Metal weight calculator
Free metal weight calculator: kg/m and total weight of steel, stainless and aluminium tubes, bars, angles and sheet. Formulas and densities explained.
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Learn more →Product Information
Material Grade
AISI 316L / 1.4404
Manufacturing Standard
DIN 11850 / EN 10217-7
Material Type
Stainless Steel
Category
Round Tube 316L
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