Active Member
|
[China]
Address: No.5, Taiwan Road, Zhangjiagang Bonded Area, Zhangjiagang City, Jiangsu Province, China
Contact name:John Chen
Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd. |
|
|
EN10305-1 E235 E355 bright annealed and bright normalized seamless cold drawn precision steel tube
Applied norms
The tubes are mainly used as hydraulic tubing
EN 10002-1, Tensile testing - Part 1 : Method of test at ambient temperature.
EN 10020, Definition and classification of grades of steel.
EN 10233, Metallic materials - Tube - Flattening test.
EN 10234, Metallic materials - Tube - Drift expanding test.
EN 10246-1, Non-destructive testing of steel tubes
EN 10246-3, Non-destructive testing of steel tubes - Part 3 : Automatic eddy current testing of seamless steel tubes for the detection of imperfections.
EN 10246-5, Non-destructive testing of steel tubes - Part 5 : Automatic full peripheral magnetic transducer/flux leakage testing of seamless ferromagnetic steel tubes for the detection of longitudinal imperfections.
EN 10246-7, Non-destructive testing of steel tubes - Part 7 : Automatic full peripheral ultrasonic testing of
seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal imperfections.
EN 10256, Non-destructive testing of steel tubes - Qualification and competence of level 1 and 2
non-destructive testing personnel.
EN ISO 377, Steel and steel products - Location and preparation of samples and test pieces for mechanical test.
EN ISO 2566-1, Steel - Conversion of elongation values - Part 1 : Carbon and low alloy steels.
Delivery conditions
+C - cold drawn/hard
+LC - cold drawn/soft
+SR - cold drawn and stress relieved
+A - annealed
+N - normalized
Material: E235, E355
Appearance:
The internal and external surface finish of the tubes shall be typical of the manufacturing process and, where applicable, the heat treatment, and it shall be such that any surface imperfections such as ridges, dents or shallow grooves requiring dressing can be identified.
Surface imperfections which encroach on the specified minimum wall thickness shall be considered defects and tubes containing these shall be deemed not to conform to this part of EN 10305.
Roughness of inside surface is not more than 4um in the delivery conditions +C, +LC
Roughness of outside surface is not more than 4um in the delivery conditions +SR, +A, +N, +C, +LC
Tube OD: 4-30mm, WT: 0.5-10mm
Surface treatment in delivery: Oiled, black phosphated, zinc coated
Application: automotive, vehicle, general engineering industries.
Each piece of tube is high pressure flushed for high cleanness
Each piece of tube ends is plugged with plastic caps
Each piece of tube is ink-marked with standard, size, condition
Wooden case packing
