Iranian Classification Society Rules

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Amendments to the Guidance Relating to the Rules for the Classification of Steel Ships


1. Unless expressly specified otherwise, the requirements in the Guidance apply to ships contracted for construction on or after 1 July 2015 and when the application for certification of materials is dated on or after 1 July 2015.

2. The amendments to the Guidance for 2014 edition and their effective date are as follows;


Effective Date 1 July 2015 (based on the application date for certification of materials

and welding)

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CHAPTER 1 MATERIALS


Section 1 General

- 102. 2. has been newly established.

- 103. 2. has been newly established.


Section 2 Test Specimens and Testing Procedures

- 201. 2. has been newly established.


Section 3 Rolled Steels

- 301.

- 303.

1. has been

4. has been

newly established. newly established.

- 304.

- 305.

- 307.

has been amended.

4. has been newly established. has been newly established.

- 308.

- 309.

- 310.

2. and 3. have been

3. and 4. have been

1. and 2. have been

newly established. newly established. newly established.


Section 4 Welding Procedure Qualification Tests(WPQT)

- 404. has been newly established.


Section 5 Castings

- 505.

- 506.

- 507.

1. has been newly established.

1. has been newly established. has been newly established.


Section 6 Steel Forgings

- 601. 2. (2) and 6. (2), (3), (4) have been newly established.

- 603. 1. (2) has been newly established.


Section 7 Copper and Copper Alloys

- 702. 1. and 3. (1) have been newly established.


Section 8 Aluminium Alloys

- 801. 1. (1), 3. and 4. (1) have been newly established.


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CHAPTER 2 WELDING


Section 1 General

- 102. has been newly established.


Section 3 Welding Works and Inspection

- 306. 3. has been newly established.

- 311. has been newly established.


Section 4 Welding Procedure Qualification Tests(WPQT)

- 403.

- 404.

- 405.

- 406.

- 407.

- 408.

has been newly established.

1., 2. (4), (5) and 3. have been newly established.

1. has been newly established. has been newly established.

2. has been newly established. has been newly established.


Section 5 Welders and Welder Performance Qualification Tests

- 503. 2. (1) and (2) have been newly established.


Section 6 Welding Consumables

- 601.

- 602.

- 606.

- 607.

has been newly established.

1. and 3. have been newly established. has been newly established.

has been newly established.


ANNEX


Annex 2-7 Guidance for non-destructive testing of ship

- 3. (1) (a) has been amended.

hull steel welds


Annex 2-8 Reinforced Plastic Materials

- 1. (4) and (5) have been deleted.

- 2. (1), (2) and (3) have been deleted.

- 3. (1) has been deleted.

- 4. (1) and (2) have been deleted.


Annex 2-10 Application of YP47 Steel Plates

- has been deleted.


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C O N T E N T S

CHAPTER 1 MATERIALS 1


Section

101.

102.

103.

104.

109.

1 General 1

Application 1

Approval of manufacturing process and manufacturing control 1

Chemical composition 1

Testing and inspection 1

Retest procedure 1


Section

201.

202.

2 Test Specimens and Testing Procedures 3

General 3

Form and dimension of test specimen 3


Section

301.

302.

303.

304.

305.

306.

307.

308.

309.

310.

3 Rolled Steels 5

Rolled steels for hull 5

Rolled steel plates for boilers 8

Rolled steel plates for pressure vessels 8

Rolled steels for low temperature service 9

Rolled stainless steels 9

Round bars for chain 10

Rolled steel bars for boiler 10

High Strength Quenched and Tempered Steels for Welded Structures 10

Stainless clad steel plates 11

Additional requirements for through thickness properties 11


Section

401.

402.

404.

4 Steel Tubes and Pipes 12

Steel tubes for boilers and heat exchangers 12

Steel pipes for pressure piping 13

Steel pipes for low temperature service 13


Section

501.

502.

505.

506.

507.

5 Castings 14

Steel castings 14

Steel castings for chains 15

Stainless steel casting for propeller 15

Grey iron casting 17

Spheroidal or nodular graphite iron castings 17


Section

601.

603.

6 Steel Forgings 18

Steel Forgings 18

Steel Forgings for chains 20

Section

702.

7 Copper and Copper Alloys 21

Copper alloy castings 21

Section

801.

8 Aluminium Alloys 22

Aluminium alloys 22


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CHAPTER 2 WELDING 25


Section

102.

103.

1 General 25

Matters to be approved 25

Special weldings 25


Section

303.

304.

305.

306.

309.

311.

3 Welding Works and Inspection 28

Application of welding consumables 28

Preparation for welding 28

Welding sequence and direction of welding 28

Main welding 30

Quality of welds 31

Welding works for YP47 steel plates 31


Section

401.

403.

404.

405.

406.

407.

408.

4 Welding Procedure Qualification Tests 33

General 33

Welding procedure qualification tests(WPQT) 33

Butt welded joints 34

Test for fillet welded joints 36

Retests and procedure qualification records(PQR) 37

Validity of qualified welding procedure specification 37

Welding procedure qualification test for YP47 steel plates 39


Section

501.

503.

5 Welders and Welder Performance Qualification Tests 40

General 40

Testing procedure 42


Section

601.

602.


606.


607.

6 Welding Consumables 44

General 44

Electrodes for manual arc welding for normal strength steels, higher strength steels and steels for low temperature service 44

One side welding consumables for normal strength steels, higher strength steels and steels for low temperature service 45

Welding consumables for stainless steels 45


<ANNEX>

Annex Annex Annex Annex Annex

Annex Annex

Annex

Annex

2-1 Guidance for seamless forged steel drums 48

2-2 Guidance for non-destructive examination of marine steel castings 49

2-3 Guidance for surface inspection of cast steel crankshafts 57

2-4 Guidance for repairs by welding for cast steel crank throws 60

2-5 Guidance for non-destructive examination of hull and machinery steel forgings 63

2-6 Guidance for liquid penetrant inspection and repair of defects of copper alloy propeller castings 73

2-7 Guidance for non-destructive testing of ship hull steel welds 81

2-8 Reinforced plastic materials 95

2-9 Offshore mooring chain 99


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Pt 2 Materials and Welding

Ch 1 Materials Pt 2, Ch 1

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CHAPTER 1 MATERIALS