TBA - NAVSEA TECHNICAL PUBLICATION

S9074-AR-GIB-010/278

TABLE XIII. Category 1 non-pressure containing castings in machinery or pressure vessels

NDT Requirements

Stress level percent of yield

Sub Cat

Sub Cart

Application Rules

Stress due to

5/ 6 Weight

MT/P T2

R T

VT

Dynamic 4/lods

x

x

x

All

-

A1

Castings which by failure of any one

-

x

x

Hi impack shock grade A

>2/3

x

A2

casting would prevent normal steering, diving or propulsion and for which there is no standby capability.

A3/

2/3 and <

x

-

-

x

A3

Static loads

x

x

A4

-

-

All

Dynamic 4/lods

x

B1

-

x

All

x

Castings which by failure of any one casting would reduce the capability of the ship to launch,land or transfer aircraft between flighht and hangar decks Castings for weapons handling systems which by failure of any one casting would: (a) Result in dropping or damaging a weapon or (b) Result in reduction of weapons service to any space launcher or aircraft by 50 percent or more

B2

-

x

x

x

>2/3

Hi impack shock grade A

B

2/3 and <

-

x

x

-

B3

Static loads

-

x

x

B4

All

-

Dynamic 4/lods

C1

All

x

x

x

-

x

x

C2

-

>2/3

x

Hi impack shock grade A

C

2/3 and <

x

-

-

x

C3

x

-

C4

Static loads

-

All

x

Original 106

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