Technical information about our tubes, Quality: C Quality "C": Electrochemically polished Material: Stainless steel, AISI 316 L - Werkstoff 1.4435/1.4404 Quality: ASTM A-269 (96)/ A-213 (95a) or DIN 17458 TC 1 (07/85) seamless, coldworked, bright annealed, straightened and deburred, rectangular cut for ATW-welding Tolerances: ASTM A-269 (96) or DIN 1127 (03/97): D4/ T3 Hardness: Controlled HRB <= 90 Outer surface: DIN 17458 (07/85), bright annealed, chart 6, n2, free from visible scratches Inner surface: Plug drawn, plus electropolished Ra <= 0,2 my up to dim. 25,4 mm/ 1" Ra max 0,4 my above 25,4 mm/ 1" Contamination: Watersoluble residuals: Max. 0,1 mg/ qm Water insoluble residuals: Max. N 10: <= 10 particles >= 0,2 my/ inch³ Tubelenghts: Randomlenghts 5.000 - 7.000 mm or fixlenghts 6.000 mm Works certificates: EN ISO 10204 3.1 B (08/95) 100% eddy-current tested acc. BS 3889 100 % optical surfaceinspection Packaging: Tube capped with PE-endcaps, tubes packed in PE-bags under cleanroom conditions, when requested under nitrogen atmosphere, transport in tubular containers or wooden boxes for safe transport and handling Certification: Production acc. ISO 9001 and QA EMAS/ ISO 14001 02/02 Subject to alteration