ISO 9809-4:2014
Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and testing — Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa
ISO 9809-4:2014 specifies the minimum requirements for the material, design, construction and workmanship, manufacturing processes, examinations, and tests at manufacture of refillable seamless stainless steel gas cylinders of water capacities from 0,5 l up to and including 150 l for compressed, liquefied, and dissolved gases. ISO 9809-4:2014 is applicable to cylinders with a maximum actual tensile strength, Rma, of less than 1 100 MPa.
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Section sec_1
Section sec_2
Section sec_3
Section sec_3.1
Section sec_3.2
Section sec_3.3
Section sec_3.4
Section sec_3.5
Section sec_3.6
Section sec_3.7
Section sec_3.8
Section sec_3.9
Section sec_3.10
Section sec_4
Section sec_5
Section sec_6
Section sec_6.1
Section sec_6.1.1
Section sec_6.1.2
Section sec_6.1.3
Section sec_6.1.4
Section sec_6.1.5
Section sec_6.1.6
Section sec_6.2
Section sec_6.2.1
Section sec_6.2.2
Section sec_6.3
Section sec_6.3.1
Section sec_6.3.2
Section sec_6.3.3
Section sec_6.3.4
Section sec_6.4
Section sec_6.5
Section sec_7
Section sec_7.1
Section sec_7.1.1
Section sec_7.1.2
Section sec_7.1.3
Section sec_7.2
Section sec_7.3
Section sec_7.3.1
Section sec_7.3.2
Table tab_b
Figure fig_1
Section sec_7.4
Figure fig_2
Section sec_7.5
Section sec_7.5.1
Section sec_7.5.2
Section sec_7.6
Section sec_7.7
Section sec_7.8
Section sec_8
Section sec_8.1
Section sec_8.2
Section sec_8.3
Section sec_8.4
Section sec_8.4.1
Section sec_8.4.2
Section sec_8.5
Section sec_8.6
Section sec_8.7
Section sec_8.8
Table tab_c
Figure fig_3
Section sec_8.9
Section sec_9
Section sec_9.1
Section sec_9.2
Section sec_9.2.1
Section sec_9.2.2
Section sec_9.2.3
Section sec_9.3
Section sec_10
Section sec_10.1
Section sec_10.1.1
Section sec_10.1.2
Table tab_d
Figure fig_4
Section sec_10.2
Section sec_10.2.1
Section sec_10.2.2
Figure fig_5
Section sec_10.3
Section sec_10.3.1
Figure fig_6
Section sec_10.3.1.1
Section sec_10.3.1.2
Section sec_10.3.1.3
Section sec_10.3.2
Section sec_10.3.2.1
Section sec_10.3.2.2
Section sec_10.3.2.3
Table tab_1
Section sec_10.3.3
Section sec_10.4
Section sec_10.4.1
Section sec_10.4.2
Table tab_e
Figure fig_7
Table tab_f
Figure fig_8
Table tab_2
Section sec_10.5
Section sec_10.5.1
Table tab_g
Figure fig_9
Section sec_10.5.2
Section sec_10.5.3
Section sec_10.5.3.1
Section sec_10.5.3.2
Section sec_10.5.3.3
Section sec_10.5.3.4
Section sec_10.5.3.5
Section sec_10.5.4
Figure fig_10
Figure fig_11
Figure fig_12
Section sec_10.6
Section sec_11
Section sec_11.1
Section sec_11.2
Section sec_11.2.1
Section sec_11.2.2
Section sec_11.3
Section sec_11.4
Section sec_11.5
Section sec_12
Section sec_13
Annex sec_A
Annex sec_A.1
Annex sec_A.2
Annex sec_A.2.1
Annex sec_A.2.2
Annex sec_A.3
Annex sec_A.4
Table tab_A.1
Figure fig_A.1
Figure fig_A.2
Figure fig_A.3
Figure fig_A.4
Figure fig_A.5
Table tab_h
Figure fig_A.6
Table tab_i
Figure fig_A.7
Table tab_j
Figure fig_A.8
Annex sec_B
Annex sec_B.1
Annex sec_B.2
Annex sec_B.3
Annex sec_B.3.1
Figure fig_B.1
Table tab_k
Figure fig_B.2
Annex sec_B.3.2
Table tab_l
Figure fig_B.3
Figure fig_B.4
Annex sec_B.3.3
Annex sec_B.4
Annex sec_B.5
Annex sec_B.6
Figure fig_B.5
Annex sec_C
Annex sec_C.1
Annex sec_D
Annex sec_D.1
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Reference ref_6
Reference ref_7
Reference ref_8
Reference ref_9
Reference ref_10
Reference ref_11
Reference ref_12
Reference ref_13
Reference ref_14
Reference ref_15
Reference ref_16
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Inspection and testing
6 Materials
6.1 General requirements
6.2 Controls on chemical composition
6.3 Heat treatment
6.4 Cold working or cryoforming
6.5 Failure to meet test requirements
7 Design
7.1 General requirements
7.2 Calculation of cylindrical shell thickness
7.3 Calculation of convex ends (heads and bases)
7.4 Calculation of the concave base ends
7.5 Neck design
7.6 Foot rings
7.7 Neck rings
7.8 Design drawing
8 Construction and workmanship
8.1 General
8.2 Wall thickness
8.3 Surface imperfections
8.4 Ultrasonic examination
8.5 Out-of-roundness
8.6 Mean diameter
8.7 Straightness
8.8 Verticality and stability
8.9 Neck threads
9 Type approval procedure
9.1 General requirements
9.2 Prototype test
9.3 Type approval certificate
10 Batch tests
10.1 General requirements
10.2 Tensile test
10.3 Bend test and flattening test
10.4 Impact test
10.5 Hydraulic burst test
10.6 Intergranular corrosion test
11 Tests/examinations on every cylinder
11.1 General
11.2 Hydraulic test
11.3 Hardness test
11.4 Leak test
11.5 Capacity check
12 Certification
13 Marking
Annex A (informative) Description and evaluation of manufacturing imperfections and conditions for rejection of seamless steel gas cylinders at the time of final inspection by the manufacturer
Annex B (normative) Ultrasonic examination
Annex C (informative) Type approval certificate
Annex D (informative) Acceptance certificate
Bibliography
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Section sec_1
Section sec_2
Section sec_3
Section sec_3.1
Section sec_3.2
Section sec_3.3
Section sec_3.4
Section sec_3.5
Section sec_3.6
Section sec_3.7
Section sec_3.8
Section sec_3.9
Section sec_3.10
Section sec_4
Section sec_5
Section sec_6
Section sec_6.1
Section sec_6.1.1
Section sec_6.1.2
Section sec_6.1.3
Section sec_6.1.4
Section sec_6.1.5
Section sec_6.1.6
Section sec_6.2
Section sec_6.2.1
Section sec_6.2.2
Section sec_6.3
Section sec_6.3.1
Section sec_6.3.2
Section sec_6.3.3
Section sec_6.3.4
Section sec_6.4
Section sec_6.5
Section sec_7
Section sec_7.1
Section sec_7.1.1
Section sec_7.1.2
Section sec_7.1.3
Section sec_7.2
Section sec_7.3
Section sec_7.3.1
Section sec_7.3.2
Table tab_b
Figure fig_1
Section sec_7.4
Figure fig_2
Section sec_7.5
Section sec_7.5.1
Section sec_7.5.2
Section sec_7.6
Section sec_7.7
Section sec_7.8
Section sec_8
Section sec_8.1
Section sec_8.2
Section sec_8.3
Section sec_8.4
Section sec_8.4.1
Section sec_8.4.2
Section sec_8.5
Section sec_8.6
Section sec_8.7
Section sec_8.8
Table tab_c
Figure fig_3
Section sec_8.9
Section sec_9
Section sec_9.1
Section sec_9.2
Section sec_9.2.1
Section sec_9.2.2
Section sec_9.2.3
Section sec_9.3
Section sec_10
Section sec_10.1
Section sec_10.1.1
Section sec_10.1.2
Table tab_d
Figure fig_4
Section sec_10.2
Section sec_10.2.1
Section sec_10.2.2
Figure fig_5
Section sec_10.3
Section sec_10.3.1
Figure fig_6
Section sec_10.3.1.1
Section sec_10.3.1.2
Section sec_10.3.1.3
Section sec_10.3.2
Section sec_10.3.2.1
Section sec_10.3.2.2
Section sec_10.3.2.3
Table tab_1
Section sec_10.3.3
Section sec_10.4
Section sec_10.4.1
Section sec_10.4.2
Table tab_e
Figure fig_7
Table tab_f
Figure fig_8
Table tab_2
Section sec_10.5
Section sec_10.5.1
Table tab_g
Figure fig_9
Section sec_10.5.2
Section sec_10.5.3
Section sec_10.5.3.1
Section sec_10.5.3.2
Section sec_10.5.3.3
Section sec_10.5.3.4
Section sec_10.5.3.5
Section sec_10.5.4
Figure fig_10
Figure fig_11
Figure fig_12
Section sec_10.6
Section sec_11
Section sec_11.1
Section sec_11.2
Section sec_11.2.1
Section sec_11.2.2
Section sec_11.3
Section sec_11.4
Section sec_11.5
Section sec_12
Section sec_13
Annex sec_A
Annex sec_A.1
Annex sec_A.2
Annex sec_A.2.1
Annex sec_A.2.2
Annex sec_A.3
Annex sec_A.4
Table tab_A.1
Figure fig_A.1
Figure fig_A.2
Figure fig_A.3
Figure fig_A.4
Figure fig_A.5
Table tab_h
Figure fig_A.6
Table tab_i
Figure fig_A.7
Table tab_j
Figure fig_A.8
Annex sec_B
Annex sec_B.1
Annex sec_B.2
Annex sec_B.3
Annex sec_B.3.1
Figure fig_B.1
Table tab_k
Figure fig_B.2
Annex sec_B.3.2
Table tab_l
Figure fig_B.3
Figure fig_B.4
Annex sec_B.3.3
Annex sec_B.4
Annex sec_B.5
Annex sec_B.6
Figure fig_B.5
Annex sec_C
Annex sec_C.1
Annex sec_D
Annex sec_D.1
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Reference ref_6
Reference ref_7
Reference ref_8
Reference ref_9
Reference ref_10
Reference ref_11
Reference ref_12
Reference ref_13
Reference ref_14
Reference ref_15
Reference ref_16
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Inspection and testing
6 Materials
6.1 General requirements
6.2 Controls on chemical composition
6.3 Heat treatment
6.4 Cold working or cryoforming
6.5 Failure to meet test requirements
7 Design
7.1 General requirements
7.2 Calculation of cylindrical shell thickness
7.3 Calculation of convex ends (heads and bases)
7.4 Calculation of the concave base ends
7.5 Neck design
7.6 Foot rings
7.7 Neck rings
7.8 Design drawing
8 Construction and workmanship
8.1 General
8.2 Wall thickness
8.3 Surface imperfections
8.4 Ultrasonic examination
8.5 Out-of-roundness
8.6 Mean diameter
8.7 Straightness
8.8 Verticality and stability
8.9 Neck threads
9 Type approval procedure
9.1 General requirements
9.2 Prototype test
9.3 Type approval certificate
10 Batch tests
10.1 General requirements
10.2 Tensile test
10.3 Bend test and flattening test
10.4 Impact test
10.5 Hydraulic burst test
10.6 Intergranular corrosion test
11 Tests/examinations on every cylinder
11.1 General
11.2 Hydraulic test
11.3 Hardness test
11.4 Leak test
11.5 Capacity check
12 Certification
13 Marking
Annex A (informative) Description and evaluation of manufacturing imperfections and conditions for rejection of seamless steel gas cylinders at the time of final inspection by the manufacturer
Annex B (normative) Ultrasonic examination
Annex C (informative) Type approval certificate
Annex D (informative) Acceptance certificate
Bibliography