SNB ENTERPRISES PVT. LTD.Stainless Steel Coils, Tubes & Pipes

01

About UsSNB Enterprises PVT. LTD. is one of the leading manufacturers of stainless steel coils, tubes and pipes and

also stainless steel products for house ware and kitchenware in India. The company was started in a

small way by our chairman Mr. Shri Niwas Bansal 30 years ago and has come a long way since then with

3 factories totaling area of over 2,00,000 square feet and producing several stainless steel products with

a turnover of over 50 million USD.

We are engaged in the manufacturing of S.S. coils, tubes and pipes, having monthly capacity of 3000

MT. We are also leading manufacturers of stainless steel tableware and utensils for Indian as well as

overseas market. SNB Enterprises is an ISO 9001:2008 certified company, having status of a government

recognized export house and we are exporting these products to several countries like USA,UK,

GERMANY, FRANCE, BRAZIL, CHILE, MEXICO etc. The company has BSCI Certification and also registered

vendor of retail chains such as Walmart, Metro, etc.

SNB is equipped with latest machinery & equipment. The company

is committed to add value to its products by continuously

improving its system & process through innovative

processes. The success so far achieved can be attributed

to our insistence on maintaining world class quality

standards in all the products and giving supreme

importance to the timely delivery of our products to

the customers.

0302

Grade TestHydro-testTensile TestFlattening TestExpansion Test

Bending TestNon destructive Eddy current TestHardness TestCorrosion TestDimensional & visual checks

Testing & Quality Assurance

Coil Processing Machines

”2” Inches

6NOS

2NOS

2NOS

2NOS 10 Head Round Pipe1NOS 36 Head Square Pipe

Pipe Making Machines

1. Cold Rolling Machine 4Hi

2. Cold Rolling Machine 12Hi

3. HR AP LINE

4. CR AP 1

5. CR AP2

6. Slitting Line-1

7. Slitting Line-2

8. Slitting Line-3

9. Bright Annealing Line

10.

11.

1. High Frequency Gallium Mill

2. TIG MILL –

3. End Polishing Machine 4. Pipe Straighting Machine

5. Polishing Machines

Width range 300-650Thickness Range 0.50-5.00mm

Width Range 300-650Thickness Range 0.10-2.80mm

Width200-650mmThickness Range 2.00-5.00mm Width Range 200-650Thickness Range 0.20-2.00mm Width Range 200-600Thickness Range 0.10-1.20mm

Width range 750Thickness Range 0.10-1.20mm Width Range 750Thickness Range 0.30-2.00 Width Range 1550mmThickness Range 4.00mm Width Range200-650mThickness 0.10-2.00mm

Shot Blasting Machine

Coil Build up Line

List of Machinery

PRODUCT RANGECold rolled stainless steel sheets & coil of different gradesconforming to AISI specification are manufactured in thefollowing sizes & finishes.

Thickness And Maximum width

Thickness (mm)

Width ( Max.) (mm)

Edge Condition Finish

Min. Max.

0.10 3.9650

Trimmed Edge /Mill Edge NO.1 /CR / 2D /2B

Hardness Minimum : 150 VPNMinimum : 450 VPN**

**strips can be supplied im any Hardness suiting to the customer’s requirement.

1

CR

2D

*2B

Hot rolled, annealed,shot blasted & pickled

Work hardened and deoiled

Cold rolled, annealed,& pickled

Cold rolled,annealed,pickled & skin passed

Used where surface finish is not critical

Used where higher hardness & strenght is required

Uniform dull finish for general application

Bright smooth finish for general applications

Our Product & Services

Coil Flow Chart

Industrial Strength - QUALITY

Finish Description Remarks

stainless steel Coils/ Tubes & Pipes

Permissible Deviations of outside Diameter and wall thickness

Tube Manufacturing process outside diameter d mm

Cold -fabricated

Hot-fabricated

D 2

D3D4

D1

D2

+1.0%min.± 0.5mm

In special cases±0.75%min.±0.3mm±0.5%min.±0.1mm

±1.5%min.±0.75mm

in special cases:±1.0%min.±0.5mm

T3

T4T1

T1

T2

±1.0%MIN.±0.2mm

In special cases±7.5%min.±0.15mm±15%Min.±0.6mm

±15%MIN.±0.6mm

in special cases±12.5%min.±0.4 mm.

05

PIPE TechnicalHF MILL

Uncoiler - Strip Welder Forming & Finn Pass High Frequency Welding

DELIVERING RESULTS,

RELIABILITY,

& ROCKSOLID

DEPENDABILITY.

-0-0-0-0-0-0

3.173.173.173.764.764.76

000000

3.173.173.174.764.767.76

000000

Tension TestFlattening TestFlare TestHardness Test100% HydrostatictestRefer to ASTM A-450

Tension TestFlattening TestFlare Test/Flange Test *Reverse Bend Test HardnessTest*Reverse flattening Test Refer to ASTM A-450*Wherever Applicable

+20+20+22+22+22+22

-10-10-10-10-10-10

+10+10+10+10+10+10 Minimum wall+18%O available on request

Under 25.425.4-38.1 incl.38.1-50.8 excl.50.8-63.5 excl.63.5-76.2 excl.76.2-101.6 incl.

0.100.150.200.300.380.38

0.100.150.200.300.380.38

DiameterUnder 25.425.4-38.1 incl.38.1-50.8 excl.50.8-63.5 excl.63.5-76.2 excl.76.2-101.6 incl.

0.100.150.200.250.300.36

0.100.150.200.250.300.36

ASTM A-249 Welded boiler,Superheater Heatexchager andcondenser Tubes

-15-10-10-10-10

3.23.24.84.84.8

00000

Flare testFlange Test(welded Only)Hardness TestFlattening Test100% Hydrostatic

+15+10+10+10+10

Under 12.712.7-38.1 excl.38.1-88.9 excl.88.9-139.7 excl.139.7-203.2 excl.

0.130.130.250.380.76

0.130.130.250.380.76

ASTM A-269Seamless &Welded Tubingfor GeneralService

-12.5-12.5-12.5-12.5-12.5-12.5

3.23.23.23.23.2

00000

Reverse Flattening Test100% Hydrostatic TestExternal polish on all tubes

Refer to ASTM A-270

+12.5+12.5+12.5+12.5+12.5+12.5

6.46.46.4

000

(Normally RandomLenghts ordered)

Tension TestFlattenning Test100% HydrostaticRefer to ASTM A-530

Maximum wall 12.5%under norminal WalSpecifiedl

25.438.150.863.576.2101.6

.05

.05

.05

.05

.08

.08

.20

.20

.28

.28

.30

.30

ASTM A-270seamless &Welded sanitaryTubing

ASTM A-312seamless & welded Pipe

-0.3 mm Customers Specification

Gransvers Tension testTransverse guided bendtest. Hydrostatic test.Radiographic penetrnt(optional.)

-For all size5”NB & Above

+0.5% -0.5%

-10%

-0(for Min.0Wall thk.)

-10(for Avg.Wall thk.)

+10

1.6 to 4.88 0

3 to 13 0

As per customerRequirement

Tension,Hardness,corrosion,Reversebend.Flange,Flattening.Hydrostatic Test Pneumatictest, NON destructive Test

+10

+20Under 25.4 0.1016 0.1016

Upto 5”127 mm

0.1to0.5

0.1to0.5

ASTM A-554 MechanicalSteel Tubing

ASTM A-688 for Welded FeedWater heater‘U’ Tubes

ASTM A-358 welded Pipefor High Temperature

13.70-48.3 incl.48.3-114.3 incl.114.3-220 incl.

0.400.791.60

0.790.790.79

Exact Length Tolerances in mm

Under % Over Under

ASTM specification for steel tubes & Pipes

Allowable outside Daimeter Variations in mm

Aloowable wallThickness Variations

Norminal Diameter Over Under Over %

ASTM A-213 seamless boiler,Superheater and HeatExchager Tubes

Specification Testing

ISOTolerance class

Permissible deviation ISOTolerance class

Permissible deviation

Outside Diameter Wall Thicknessscope

Run Out Table

Accumulator External Scarfing Section

Cutting Car Sizing - Truck Head Section Bead Polisher

Cooling Zone

HF Welding Technology

The HF welding process heats only the edges of the strips. The edges are forged together by the weld rolls causing the molten metal and metal oxides to be ejected. The hot metal below the surface then fuses into a weld.

04

stainless steel Coils/ Tubes & Pipes

301

304

304H

304L

304LN

309

309S

310

310S

316

316L

316LN

316Ti

317

317L

317LN

321

347

409

410

410S

405

430

430

420

Stainless steelGrades AISI

Main characteristic Typical Application /End Use

201

202

301

304

304L

316

316L

321

409

409L

High cold work hardening rate, normalformability

High cold work hardening rate good formability.

Attains high strength by being cold worked,while retaining good ductility.

Better welding characteristics with good formability and general corrosion resistance

Low carbon content,weldable andresistance to sensitisation. Goodcorrosion and oxidation resistance.

Superior corrosion resistanceto sea water and many chemicalsand weldable.

Better Engineering Properties

Better Engineering Properties

Low carbon content highly corrosionresistant,weldable and resistant to sensitation.

Welded tubes, utensils, kitchen appliances, sinks, architecture building & construction, consumer durables

Water tubings, watch parts, foot rule, industrial knives, bus body accessories, kitchen appliances, kerosene and gas stove parts.

Used in cold Worked condition for springs and wear plates

Watch parts, engine gaskets, flexible hoses, foot rule, Door hinges, capillary tubings and sinks.

Hypodermic needles and capillary tubings.

Engine gaskets, flexible hoses, process plant and paper industry equipment.

Process plant parts particularly in thick sections.

Heater elements, process plant, furnace parts and high temperature tubes.

Auto mobile Industry

Auto mobile Industry

Grades Properties

GradeTensilestrenth

Mpa (Min.)

Yeildstrenth

Mpa(Min.)

%Elongation

(Max.)

HardnessBHN

(Max.)

HardnessRB

(Max.)

INDIA / IS Letter

Symbol

UNS

desigation

Germany /

DIN

JAPAN /

JISUSSR /GOST

Austenitic

301

304

304H

304L

304LN

309

309S

310

310S

316

316L

316LN

316Ti

317

317L

317LN

321

347

515

515

515

485

515

515

515

515

515

515

485

515

515

515

515

550

515

515

205

205

205

170

205

205

205

205

205

205

170

205

205

205

205

240

205

205

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

40

217

201

201

201

201

217

217

217

217

217

217

217

217

217

217

217

217

201

95

92

92

92

92

95

95

95

95

95

95

95

95

95

95

95

95

92

X10Cr17Ni7

X04Cr19Ni9

X04Cr19Ni10

X15Cr24Ni13

X20Cr25Ni20

X04Cr17NI12Mo2

X02Cr17Ni12Mo2

X04Cr17Ni12Mo2Ti

X04Cr18Ni10Ti

X04Cr18Ni10Nb

301

304SI

/304S2

309

310

316

316L

S31635

S31700

S31703

S31753

321

347

S30100

S30400

S30409

S30403

S30453

S30908

S31008

S31600

S31603

S31653

S316Ti

S32100

S34700

X12CrNi177

X5CrNi1810

X2CrNi1911

G-X2CrNiN189

X2CrNiN1810

X15CrNiSi2012

X7CrNi2314

X15CrNiSi2520

X12CrNi2521

X5CrNiMo17122

X2CrNiMO18143

X2CrNIMoN17133

X6CrNiMoTi17122

X5CrNiMo17133

X2CrNiMo18164

X6CrNiTi1810

X6CrNiNb1810

SUS301

304

SUS304L

SCS19

SUS304LN

SUH309

SUS309S

SUH310

SUS310S

SUS316

SUS316L

SCS16

SUS316LN

SUS317

SUS317L

SUS321

SUS347

08Ch18N10

03Ch18N11

20Ch20NS2

20Ch25N20S2

20Ch23N18

3Ch17N14M3

3Ch16N15M3

10Ch17N13M2T

08Ch18N10T

08Ch18N12B

409

409RC

409M**

410

410S

405

430

430Ti

436

420

JBS

JSL

J3

J4

380

350

450

450

415

205

170

275

205

205

20

30

20

20

22

179

179

187

217

183

88

88

90

96

89

X12Cr12 410

S40900

S41000

S41008

X6CrTi12

X10Cr13 SUS410

415

415

360

450

170

205

175

240

20

22

27

22

179

183

179

89

88

89

88

X04Cr12

x07cr17

X6CrTi17

405

430

S40500

SUS430LX

S43000

S43600

X6CrAl13

X6Cr17

SUS405

SUS430

690 15 217 96 X20Cr13

X30Cr13

X40Cr13

420S1

420 S2

420 S3

S42000 X20Cr13 SUS420JI

550

600

700

205

250

350

40

40

40

217

217

217

95

95

95

FERRITIC + MARTENSITIC

FERRICTIC

MARTENSITIC

LOW NICKEL AUSTENITIC

Mechnical PropertiesComparison of Indian/ Prop. (JSL) Grades with Various International Standards

INDIA / IS Numerical

Symbol (ISS)

Chemical Properties

09

Grade

Austenitic

FERRITIC + MARTENSITIC

FERRICTIC

MARTENSITIC

LOW NICKEL AUSTENITIC

301

304

304H

304L

304LN

309

309S

310

310S

316

316L

316LN

316Ti

317

317L

317LN

321

347

409

409RC

409M

410

410S

405

430

430 Ti

420

JBS

JSLAUS(J1)

J3

J4

0.15

0.08

0.04-0.10

0.03

0.03

0.02

0.08

0.25

0.08

0.08

0.03

0.03

0.08

0.08

0.03

0.03

0.08

0.08

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

2.00

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

1.00

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

0.75

16.00-18.00

18.00-20.00

18.00-20.00

18.00-20.00

18.00-20.00

22.00-24.00

22.00-24.00

24.00-26.00

24.00-26.00

16.00-18.00

16.00-18.00

16.00-18.00

16.00-18.00

18.00-20.00

18.00-20.00

18.00-20.00

17.00-19.00

17.00-19.00

6.00-8.00

8.00-10.50

8.00-10.50

8.00-12.00

8.00-12.00

12.00-15.00

12.00-15.00

19.00-22.00

19.00-22.00

10.00-14.00

10.00-14.00

10.00-14.00

10.00-14.00

11.00-15.00

11.00-15.00

11.00-15.00

9.00-12.00

9.00-12.00

2.00-3.00

2.00-3.00

2.00-3.00

2.00-3.00

3.00-4.00

3.00-4.00

3.00-4.00

0.10

0.10

0.10

0.10-0.16

0.10

0.10

0.10-0.16

0.10

0.10

0.10

0.10-0.22

0.10

Ti5X(C+N)Min.,0.70 Max.

Ti5X(C+N) Min., 0.70 Max

Cb=10XC Min., 1.00 Max

0.080

0.02

0.03

0.15

0.08

1.00

1.00

0.8-1.5

1.00

1.00

0.040

0.040

0.03

0.040

0.040

0.020

0.030

0.030

0.030

0.030

1.00

1.00

1.00

1.00

1.00

10.50-11.75

10.50-11.75

10.80-12.50

11.50-13.50

11.50-13.50

0.50 max.

0.50 max.

1.50 max.

0.75 max.

0.60 max.

0.80

0.12

0.030

0.12

1.00

1.00

1.00

1.00

0.04

0.04

0.04

0.040

1.00

1.00

1.00

1.00

1.50-14.50

16.00-18.00

16.00-18.00

16.00-18.00

0.60

0.75 max

Ti=6X(C+N) Min., 0.75 Max

Ti=5X C Min., 0.75 max

Ti=0.75 Min

Al=0.10 - 0.30

Ti=0.10 - 1.0

Cb=5X C Min., 0.80 max

0.030

0.020

0.030

0.15 min.

0.6 -0.75

1.00

1.00

0.040

0.04

0.030

0.030

1.00

0.75

12.00 -14.00

12.00-14.00

0.75 max

0.75 max

Mo = 0.50 mAX

0.08

0.08

0.10

7.00-8.00

9.00-10.50

8.50-10.00

0.075

0.075

0.090

0.75

0.75

0.75

15.00-17.00

14.00-16.00

15.00-16.00

4.00--5.00

2.00-3.00

1.2(max)

0.10

0.15

0.20

1.5

2.0

2.0

% C(Max)%Min

(Max)

% P

(Max)

% S

(Max)

% Si

(Max)% Cr %Ni %Mo

%N

(Max)

%Cu

(Max)

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.75-1.25

Weldable and resistant to sensatitisationgood corrosion and oxidation resistance.

201, 202, 301, 304, 304L, 316, 316L, 321, 409, 409L

Industrial Strength - QUALITY

DELIVERING RESULTS,

RELIABILITY,

& ROCKSOLID

DEPENDABILITY.

USA-Canada/

AISI-ASTM-

ASME

08

stainless steel Coils/ Tubes & Pipes

11

Formula

1.

2.

3.

4.

5.

6.

7.

Weight of SS Sheet, Plate Length (mtr) x Width (mtr) x Thickness (mm) x 8 = Wt. (Per Sheet)

Weight of SS Pipes & Tubes (Kg), OD (mm) - Wall Thickness (mm) x Wall Thickness (mm) x 0.00756 = Wt. (Per Ft.)

Weight of SS Round (Kg), Diameter (mm) x Diameter (mm) x 0.0019 = Wt. (Per Ft.)

Weight of SS Hex (Kg), Diameter (mm) x Diameter (mm) x 0.002072 = Wt. (Per Ft.)

Weight of SS Square (Kg), Diameter (mm) x Diameter (mm) x 0.0024 = Wt. (Per Ft.)

Weight of SS Circle (Kg), Diameter (mm) x Diameter (mm) x Thickness x 0.0000063 = Wt. (Per PC)

Weight of SS Flat (Kg), Width (mm) x Thickness (mm) x 0.00243 = Wt. (Per Ft.)

Quality

Quality Lab Testing

SNB has a well-equipped testing laboratory to carry out

metallurgical and mechanical tests standards in output

delivery

HARDNESS TEST:-

Test carried out before and after bright annealing in

sheets.

R.A VALUE:-

Roughness average value measured on both rolls and

strips during rolling.

COUPING TEST:-

Couping is done for the sheet which are to be used in

deep drawing and bending operation.

FLARING TEST:

The standard procedure for this test to flare the end of

the pipe to a diameter 1.2 times the outside diameter.

HYDROSTATICS/PNEUMATIC PRESSURE TEST:

As per the ASTM-A450&530 standards, 100%Hydrostatics

is carried out on all pipes & tubes using hydraulic and

pneumatic systems.

EDDY CURRENT:

This test is carried out on the entire line of tubes as per

the ASTM-426 to determine the sub surface in

homogeneities. This test is carried out on demand only.

RADIOGRAPHY TEST:

On demand, we can also provide the Radiography

testing through the Approved Inspection Agencies.

OTHER TESTS

CORROSION TEST:

This test is conducted only when specifically requested.

FLANGE TEST:

There are no cracks on welded section or on the base

metal.

BENDING TEST:

Each length of finished pipe is subjected to the

hydrostatic or pneumatic pressure test. Each pipe must

withstand the pressure without leakage.

FLATTENING TEST:

This test is conducted to check the strength of the

welded section by subjecting, it to extreme compression

stress. If the test piece with stand the specified

compression stress without cracking, it is determined to

be acceptable.

REVERSE FLATTENING TEST:

There are no cracks or blow holes can be observed on

welded section.

DELIVERING RESULTS,

RELIABILITY,

& ROCKSOLID

DEPENDABILITY.

Weight Chart - NB Sizes

10

Sizes are readily available with us

stainless steel Coils/ Tubes & Pipes

Round/Tube According to ASA B,36.10-B.3619-BS.1600

NB Inches NB in MM OD Inches OD in MM Wall Thiknessin MM

Weight in KG/m

Schedule 10 S Schedule 40 SSchedule 5 SWall Thiknessin MM

Weight in KG/m Weight in KG/m

Wall Thiknessin MM

1/8 6 0.405 10.3 - - 1.24 0.28 1.73 0.36

1/4 8 0.54 13.7 - - 1.65 0.49 2.24 0.63

3/8 10 0.675 17.1 - - 1.65 0.63 2.31 0.84

1/2 15 0.84 21.3 1.65 0.8 2.11 1 2.77 1.27

3/4 20 1.05 26.7 1.65 1.02 2.11 1.28 2.87 1.68

1 25 1.315 33.4 1.65 1.29 2.77 2.09 3.38 2.5

1 1/4 32 1.66 42.2 1.65 1.65 2.77 2.69 3.56 3.38

1 1/2 40 1.9 48.3 1.65 1.9 2.77 3.1 3.68 4.05

2 50 2.375 60.3 1.65 2.39 2.77 3.93 3.91 5.44

2 1/2 65 2.875 73 2.11 3.68 3.05 5.26 5.16 8.62

3 80 3.5 88.9 2.11 4.51 3.05 6.45 5.49 11.27

3 1/2 90 4 101.6 2.11 5.17 3.05 7.4 5.74 13.56

4 100 4.5 114.3 2.11 5.83 3.05 8.35 6.02 16.06

5 125 5.563 141.3 2.77 9.45 3.4 11.56 6.55 21.76

Sugar Mill

Accessories

Auto Mobile Parts chemical fertilisers Airport

Furniture Kitchen Gates

Railings Pharmaceutical Structures Architecture

DELIVERING RESULTS,

RELIABILITY,

& ROCKSOLID

DEPENDABILITY.

12 13

stainless steel Coils/ Tubes & Pipes

Standard Application