Technical information about our tubes, Quality: MSR Quality "MSR": Tube with controlled hardness, outer surface and tight tolerance Material: Stainless steel, AISI 316/ L/ Ti - Werkstoff 1.4401/ 1.4435/ 1.4404 / 1.4571, other materials are available on request Quality: ASTM A-269 (96)/ A-213 (95a) or DIN 17458 TC 1 (07/85) seamless, coldworked, bright annealed, straightened and deburred, Tolerances: Restricted acc.ASTM A-269 (96) or DIN 1127 (03/97): D4/ T3 Hardness: Controlled HRB <= 80/ HV 180 Outer surface: DIN 17458 (07/85), bright annealed, chart 6, n2, free from visible scratches Tubelenghts: Randomlenghts 4.000 - 7.000 mm Works certificates: EN ISO 10204 3.1 B (08/95) Packaging: Transport in tubular containers or wooden boxes for safe transport and handling Certification: Production acc. ISO 9001 and QA EMAS/ ISO 14001 Application: Compression type fittings like A-lok, Gyro-lok, Swagelok and similars for leak-proof connections 10/99 Subject to alteration