FORMULA OF CALCULATING WEIGHT :
- Weight
of S.S. Pipe
O.D. (mm) - W. Thick (mm) x W. Thick (mm)
x 0.0248 = Wt. Per Mtr.
O.D. (mm) - W. Thick (mm) x W. Thick (mm)
x 0.00756 = Wt. Per Feet.
- Weight
of S.S. Round Bar
DIA (mm) x DIA (mm) x 0.00623 = Wt. Per Mtr.
DIA (mm) x DIA (mm) x 0.0019 = Wt. Per Feet.
- Weight
of S.S. Square Bar
DIA (mm) x DIA (mm) x 0.00788 = Wt. Per Mtr.
DIA (mm) x DIA (mm) x 0.0024 = Wt. Per Feet.
- Weight
of S.S. Hexagonal Bar
DIA
(mm) x DIA (mm) x 0.00680 = Wt. Per Mtr.
DIA (mm) x DIA (mm) x 0.002072 = Wt. Per Feet.
- Weight
of S.S. Flat Bar
Width (mm) x Thick (mm) x 0.00798 = Wt. Per
Mtr.
Width (mm) x Thick (mm) x 0.00243 = Wt. Per Feet.
- Weight
of S.S. Sheets & Plates
Length (Mtrs.) x Width (Mtrs.) x Thick (mm)
x 8 = Wt. Per PC
Length (Feet) x Width (Feet) x Thick (mm) x 3/4
= Wt. Per PC
- Weight
of S.S. Circle
DIA (mm) x DIA (mm) x Thick (mm) x 160 = Gms.
Per PC
DIA (mm) x DIA (mm) x Thick (mm) x 0.0000063 = Kg.
Per PC
- Weigth
of Brass Pipe / Copper Pipe
O.D. (mm) - Thick (mm) x Thick (mm) x 0.0260
= Wt. per Mtr.
- Weight
of Lead Pipe
O.D. (mm) - Weight (mm) x Weight (mm) x 0.0345
= Wt. per Mtr.
- Weight
of Aluminium Pipe
O.D. (mm) - Thick (mm) x Thick (mm) x 0.0083 = Wt.
per Mtr.
- Weight of Aluminium
Sheet
Length (Mtr.) x Width (Mtr.) x Thick (mm) x 2.69
= Wt. Per PC
- Weight
Conversion of Mtr. To Feet
Weight per Mtr. 3.2808 = Wt. oer Ft.
- Barlow's Formula for
Calculating Bursting Pressure
P
= 2ST/D or T-DP/2S or S-DP/2T or D = 2ST / P
P = Bursting
Pressure P SI
S = Tensile
Strength of Tube
T = Wall
Thickness ( In inches)
D = Outside
Diameter (In inches)
|
|
|
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FORMULA FOR HEALTHY BUSINESS
HONESTY + QUALITY OF GOODS + QUICK SERVICE = GOOD HEALTH OF BUSINESS
Application
Of Grades :
SS
301
An
austenitic stainless steel, because of its ability to attain
high strength and ductility through moderate or serve cold
working, can be used for automobile trims, conveyor belts,
transportation cars such as railway coaches, metal fixtures
for construction proposes roof drainage products, storm
door-frames, table-war etc.
SS 304
It is the most widely used austenitic stainless steel. It
has excellent corrosion resistance and forming characteristics.
Used in chemicals, petro-chemical and fertilizer industries,
and as equipment in dairy, food processing, pharmaceutical
industries in hospitals, households as kitchen wares, sinks,
cutlery, cryogenic vessels and as heat exchangers in air-conditioning,
refrigeration, for machinery in paper, pulp, textile beverage
sectors etc.
SS 304L
It is used in palace of SS 304 for improved resistance to
intere-granular corrosion. It is used for parts and structures
which cannot be heat treated for stress relieving after
welding. Has less tendency to work harden.
SS 310S
These are austenitic types with higher Chromium and Nickel
content. Because of their relatively high creep strength
and mechanical properties at higher temperatures these steel
find applications for higher temperatures and server service
conditions. Used for air heaters, annealing boxes, ovens,
carbureting boxes, fire box sheets furnace linings, furnace
stacks and dampers, gas turbine parts, heat exchanges kin
lining, nozzle diaphragm, mill equipment oil refinery equipment,
recuperations etc.
SS 316
An austenitic stainless steel with 2.0 to 3% No. which improves
corrosion resistance against halogens and imparts hot strength
characteristics. Used for applications requiring resistance
to pitting corrosion and in halogen atmospheres. Typical
application: architectural trims, marine exteriors, chemical
processing equipment, food processing equipment, petroleum
refining equipment, pharmaceutical equipment, photographic
equipment, pulp and paper processing equipment, textile
finishing equipment, pollution control etc.
SS 316L
Recommended in place of 316 when weld ability has to be
improved.
SS 321
An austenitic stainless steel similar to SS 304 but stabilized
with titanium to avoid inter - granular corrosion. Type
SS 321 resists scaling and vibration fatigue. It is used
for aircraft exhaust stacks and manifolds pressure vessels,
large muff lets for stationary diesel engines, carburetors,
expansion bellows, stacks liners, fire watism super heaters
etc.
SS 409/409M
It is the lowest all over straight Chromium ferritic stainless
steel. It replaces carbon steels and low alloy steel where
some amount of heat or corrosion resistance and higher strength
is required and where appearance is secondary. It is used
for fins in heater tubes, automotive exhaust systems including
mufflers, resonators, silencers, pipes and emission control
units, high pressure agricultural spray tanks, culverts,
shipping containers, farm equipment, etc.
SS 410S
SS 41OS is the most commonly used 12% Chromium stainless
steel. Excellent combination of toughness and strength can
be developed. It is a good choice when good formability
and high strength are required and the end use demands resistance
to mildly corrosive environment. It is used for furnace
parts and burners operating below 650° C, micrometer
parts, tray supporters, caps and vaporizers in petroleum
fractionating towers, lining for reaction chambers, coal
screens fishing tacklets, keys, brackets, rules and tapes,
wall screens, steam turbine buckets blades, bucket covers,
pump parts, petro-chemical equipment, press plates, etc.
SS 420
This steel contains min 0.15% C and 12% Cr. It can be thermally
hardened to develop very high strength. Extremely useful
for cutlery. Other applications include vegetable shoppers,
scissors, shears, tweezers, hand tools, dental & surgical
instruments, etc.
SS 430
SS 430 with 17% Cr. is inferior to SS 304 as regards deep
durability. Though it does not have good corrosion resistance
properties as the CR-Ni steels, it is used under less severe
corrosive atmospheres for chemical processing equipment,
furnace parts, heat exchangers, oil burner parts, petroleum
rolling equipment, pyrometers, protection tubes, recuperates,
rubber plant machinery, scientific apparatus, storage vessels,
tubing, television cones, electrical appliances, solar water
heaters, air conditioners, kitchenware, household appliances,
decorative trims, parts for washing machines, etc.
|
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Field Of Application :
| Application
Area |
Typical
Application |
| Architecture |
Doors,
Arches Window Frames, Columns Facings, Roofing, Flashing,
Coping, Fascia, Curtain Walls, Grave, Stops &
Drains. |
| Chemical
Processing |
Pumps, Valves, Heat Exchangers, Vessels, Piping,
Tanks, Filters, Instruments, Mixers, Reactors, Dryers,
Columns, Meters, Sifters, Screens & Centrifuges.
|
| Consumer
Products |
Consumer Durables, Home Furnishings, Hardwares,
Washing Machines, Cooking Ranges, Dish Washers,
Tablewares, Furnitures, Accessories, Containers,
Kitchen Appliances & Utensils.
|
| Environment |
Sludge
Handling Equipments, Flue Ducts, Scrobbers, Acrators,Water Treatment
Plants, Valves & Pipings. |
| Food
Processing |
Food
Handlers, Tank Containers, Mixing Equipments, Dicers, Agglomeraters,
Conveyors, Panel Walls & Processors. |
| Pharmaceuticals |
Vats,
Vessels, Mixing Equipments, Piping Valves, Reactors, Tablet
Making & Packaging Machines. |
Petroleum
Refining &
Petrochemicals |
Heater
Tubes, Heat Exchangers, Tanks, Reactors & Pressure Vessels. |
| Pulp
and Paper |
Grinders,
Water Sprays, & Showers, Screening & Dewatering Equipments,
Pulp Degestors, Cooking and Washing Tools, Bleaching Equipments
and Paper Making Machines. |
|
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Specifications
:
Technical
Specification of Stainless Steel Chemical Composition
(in %)
| GRADE |
C
(Max) |
Mn
(Max) |
P
(Max) |
S
(Max) |
Si
(Max) |
Cr |
Ni |
Mo |
Nitrogen
Max |
Cu/Other |
| 301 |
0.15 |
2.00 |
0.045 |
0.030 |
1.00 |
16.00-18.00 |
6.00-8.00 |
- |
0.10 |
- |
| 304 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
18.00-20.00 |
8.00-10.50 |
- |
0.10 |
- |
| 304L |
0.03 |
2.00 |
0.045 |
0.030 |
0.75 |
18.00-20.00 |
8.00-12.00 |
- |
0.10 |
- |
| 310S |
0.08 |
2.00 |
0.045 |
0.030 |
1.50 |
24.00-26.00 |
19.00-22.00 |
- |
- |
- |
| 316 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
0.10 |
- |
| 316L |
0.03 |
2.00 |
0.045 |
0.030 |
0.75 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
0.10 |
- |
| 317 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
18.00-20.00 |
11.00-14.00 |
3.00-4.00 |
0.10 |
- |
| 317l |
0.03 |
2.00 |
0.045 |
0.030 |
0.75 |
18.00-20.00 |
11.00-15.00 |
3.00-4.00 |
0.10 |
- |
| 321 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
17.00-19.00 |
9.00-12.00 |
- |
0.10 |
Ti5(C+N)Min
Or 1.00 Max |
| 347 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
17.00-19.00 |
9.00-13.00 |
- |
- |
Cb=10*(C
Min)Or 1.00 Max |
| 409 |
0.08 |
1.00 |
0.040 |
0.010 |
1.00 |
10.50-11.75 |
0.50 |
- |
- |
Ti=6*(C+N)Min
Or 0.70 Max |
| 409M |
0.03 |
0.8-1.2 |
0.030 |
0.030 |
0.40 |
11.00-12.00 |
1.5
Max |
- |
- |
Ti=6*(C)Min
Or
0.70 Max- |
| 410S |
0.08 |
1.00 |
0.040 |
0.030 |
0.75 |
11.50-13.50 |
0.60 |
- |
- |
- |
| 410 |
0.15 |
1.00 |
0.040 |
0.030 |
1.00 |
11.50-13.50 |
0.75 |
- |
- |
- |
| 420 |
0.35 |
0.5 |
0.035 |
0.015 |
1.00 |
12.00-13.00 |
0.2-0.3 |
- |
- |
- |
| 430 |
0.12 |
1.00 |
0.040 |
0.030 |
0.50 |
16.00-18.00 |
0.75 |
- |
- |
- |
| JSL
AUS |
0.08 |
7.0-8.0 |
0.070 |
0.030 |
0.75 |
15.50-16.50 |
4.25-4.75 |
- |
- |
0.9-1.10 |
| JS-203 |
0.08 |
9.25-10.25 |
0.070 |
0.030 |
0.75 |
14.25-15.25 |
2.25-2.75 |
- |
- |
1.60-2.0 |
| 301M |
0.1 |
4.5-5.5 |
0.060 |
0.030 |
0.75 |
14.50-15.50 |
6.0-7.0 |
- |
- |
1.70-1.90 |
|
------------------------------------------------------------------------------------------------------------ |
Mechanical
Properties :
Grade
|
Tensile
Strength
Mpa,(Min) |
Yield
Strength
Mpa, (Min) |
%age
Elongation
in 50mm Guage
Length Min |
Hardness(Max)
|
BHN
|
RS
|
301
|
515
|
205
|
40
|
217
|
95
|
304
|
515
|
205
|
40
|
201
|
92
|
304L
|
485
|
170
|
40
|
201
|
92
|
310S
|
515
|
205
|
40
|
217
|
95
|
316
|
515
|
205
|
40
|
217
|
95
|
316L
|
485
|
170
|
40
|
217
|
95
|
317
|
515
|
205
|
35
|
217
|
95
|
317L
|
515
|
205
|
40
|
217
|
95
|
321
|
515
|
205
|
40
|
217
|
95
|
347
|
515
|
205
|
40
|
201
|
92
|
409 |
380 |
170 |
20 |
179 |
88 |
409M |
430 |
275 |
20 |
187 |
90 |
410S |
415 |
205 |
22 |
183 |
89 |
410 |
450 |
205 |
20 |
217 |
89 |
420 |
700(Max) |
- |
15 |
217 |
95 |
430 |
450 |
205 |
22 |
183 |
89 |
JSL
AUS |
515 |
205 |
40 |
217 |
95 |
JS-203 |
515 |
205 |
40 |
217 |
95 |
301M |
515 |
205 |
40 |
217 |
95 |
|
