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132893/2022/CMD-II

PM/ 6911/4
July 2022
www.bis.gov.in

उ�ाद मानु यल
Stainless Steel Plate, Sheet
and StripIS
6911:2017 के अनुसार

PRODUCT MANUAL FOR

Stainless Steel Plate, Sheet and
StripAccording to IS 6911:2017

िविभ� उ�ादों के िलए भारतीय मानक �ूरो (अनु�पता मू�ांकन) िविनयम, 2018 की योजना- I के
तहत प्रमाणन के सं चालन म� अ�ास और पारदिश�ता के सं चालन म� पारदिश�ता सु िनि�त करने के िलए
इस उ�ाद मैनुअल का उपयोग सभी �े त्रीय / शाखा काया�लयों और लाइस� सधा�रयों �ारा सं दभ� सामग्री
के �प म� िकया जाएगा। द�ावे ज़ का उपयोग बीआईएस प्रमाणन लाइस� स/प्रमाणपत्र प्रा� करने के
इ�ु क सं भािवत आवे दकों �ारा भी िकया जा सकता हैI

This Product Manual shall be used as reference material by all Regional/Branch Offices & licensees
to ensure coherence of practice and transparency in operation of certification under Scheme-I of
Bureau of Indian Standards (Conformity Assessment) Regulations, 2018 for various products. The
document may also be used by prospective applicants desirous of obtaining BIS certification
licence/certificate.

1. उ�ाद : IS 6911:2017
Product
शीष�क : Stainless Steel Plate, Sheet and Strip
Title
संशोधनों की सं�ा : 3
No.of amendments
2. नमू ना िदशािनद� श
Sampling Guidelines
a) क�ामाल : No specific requirement for raw material
Raw material
b) समूहीकरण िदशािनद� श : Please refer Annex - A
Grouping Guidelines
c) नमू ने का आकार : 5 pieces of 5 cm x 5 cm for chemical tests
Sample Size 0.5 m x 0.5 m for mechanical tests (Prepared tests for
pieces for thickness > 4 mm)

3. परी�ण उपकरणों की सूची : Please refer Annex - B

List of Test Equipment
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4. िनरी�ण और परी�ण की �ीम : Please refer Annex - C

Scheme of Inspection and
Testing
5. एक िदन म� संभािवत परी�ण : All tests
Possible tests in a day
6. लाइस�स का दायरा / Scope of the Licence :

Licence is granted to use Standard Mark as per IS 6911:2017 with the following scope:
उ�ाद का नाम Stainless Steel Plate, Sheet and Strip
Name of the product
Grade designation 301, 302, 304S1..

Condition Hot rolled/cold rolled

Heat treatment Annealed with air or water quenching

Size Nominal width from… to … mm

Thickness from … to … mm

Surface finish Mill Finish – 2D, 2B etc.

Polish Finish – 3, 4 etc.

BUREAU OF INDIAN STANDARDS

Manak Bhawan, 9, Bahadur Shah
Zafar Marg,New Delhi – 110002
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ANNEXURE A
TO PRODUCT MANUAL FOR
Stainless Steel Plate, Sheet and Strip
According to IS 6911:2017

GROUPING GUIDELINES
Grouping of different grade designations of stainless steel has been done on the basis of phase of iron
and chemical composition/alloying elements. Guidelines for drawing of samples for each group are as
under:

Group Grade Remarks

Designation
Series
1 400-Ferritic One sample each from the group, of hot rolled and cold rolled
conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable to the
variety tested.
2 400- One sample each from the group, of hot rolled and cold rolled
Martensitic conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable to the
variety tested.
3 200- One sample each from the group, of hot rolled and cold rolled
Austenitic conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable to the
variety tested.
4 300- One sample each from the group, of hot rolled and cold rolled
Austenitic conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable to the
variety tested.
5 900-Austenitic One sample each from the group, of hot rolled and cold rolled
conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable to the
variety tested.
5 Low One sample each from the group, of hot rolled and cold rolled
Nickel- conditions, of any heat treatment process if so followed by the
Austenitic manufacturer, of any one of the grade designations, of Stainless Steel
(i.e. N1, N2, Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
N3) to be tested for all requirements of the specification applicable to the
variety tested.

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6 Duplex One sample each from the group, of hot rolled and cold rolled
conditions, of any heat treatment process if so followed by the
manufacturer, of any one of the grade designations, of Stainless Steel
Plate, Sheet and Strip, as applied for licence/inclusion may be drawn and
to be tested for all requirements of the specification applicable
to the variety tested.
Note: 200-Austenitic grade designation series refers to all austenitic type grades bearing numerical
symbol of the type 2xxx.. such as 201, 201A, 204Cu1 etc., Similarly for 400-Ferritic, 400-martensitic,
300-austenitic, 900-austenitic etc.

2. During preliminary inspection, before drawing samples for independent testing, it shall be ensured by
IO that samples to be drawn for independent testing have to be tested at factory for Dimensions as per
cl.17 of IS 6911:2017. In case of inclusion, factory test report for Dimensions as per cl.17 of IS
6911:2017 may be accepted and conformity of the grades included to the same has to be verified during
next surveillance visit.

3. Surface Finish: Certain surface finishes get converted to superior surface finishes based on further
processing. Further, some surface finishes are independent of each other. Hence, recommendation on
polished finishes shall be restricted depending upon the manufacturing facility available with the firm.

Note: If no heat treatment is involved while changing the appearance to superior surface finish then test
requirements of previous finish is to be made applicable for superior finish as well.

4. A declaration shall be obtained from the applicant on each heat treatment process (Annealing,
Hardened and tempered or any other treatment), based on the manufacturing capabilities, exercised for
each group.

5. If the above sample passes, then licence may be granted/inclusion be done for the Grades
designations, for all sizes and varieties of the Group. However, it shall be ensured that the firm is
having all the necessary manufacturing and testing facilities for the manufacture and testing of the
sizes/grade designations /varieties of Stainless Steel Sheet and Strip to be included in the licence.

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ANNEXURE B
TO PRODUCT MANUAL FOR
Stainless Steel Plate, Sheet and Strip
According to IS 6911:2017

LIST OF TESTING EQUIPMENT

Major test equipment required to test as per requirements of Indian Standard.

Tests Used Clause

Sno Test Equipment/Chemicals
Reference

Device for instrumental chemical analysis such as Optical

Spectrometer with all requisite channels

OR

• Carbon Sulphur (Strohlein’s type ) Apparatus – Complete set

consisting of glass parts, combustion furnace, oxygen
cylinder , combustion tubes/ boats etc.
• Porcelain boat (capable of withstanding 1150 deg. C)
• Weighing Balance
• Hot plate
• Muffle furnace
• Induction Furnace
Chemical Composition
1 • Barometer, Thermometer
as per Cl 7
• Burette, Pipette and Full Range of Lab. Glassware like :
Conical Flasks ,Beakers, Funnel, Pipettes Glass rod, watch
Glass, Brush etc.
• Standard Reference Material
• Platinum Crucible for Silicon Test
• Dessicator
• Filter paper, Whatman Filter Paper & Ash less clippings
• Arrangements for nitrogen testing
• Drilling machine

Chemicals and reagents as applicable

(Indicative element wise list of test apparatus, chemcials and

reagents is enclosed)
2 Tensile Test as per Cl
Tensile Testing Machine
10.1
3
Hardness Tester (Vickers/Brinell/Rockwell) Hardness as per Cl 10.2
4
Erichsen cupping Test apparatus As per Cl 11
5 Vernier Calipers, Micrometer, Steel Scale, Surface Table,
Dimension as per Cl17
Measuring Tape, Feller Gauge
11 Bend Test Equipment/ Mandrels/Templates/ Bend Test as per Cl
UTM attachments/ clamps/vice/Magnifying 10.1

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Glass.
Apparatus for corrosion resistance test

BY HUEY TEST (IS 10461 (Part1):1994)

Oven (0-700Deg C), Stop Watch
Corrosive Solution (Aqueous solution of 65+/-2% (m/m) reagent
grade HNO3, weigh balance, Hot Plate,
Conical Flask (1 litre) fitted with cold finger immersion condenser
or other type of condenser such as Allihn condenser with at least 4
bulbs, paper indicator to check acid fumes, test piece support
Mechanical/chemical preparation and degreasing apparatus and
reagents including Grade 120 Abrasive Paper or cloth,
Hydrochloric Acid,Nitric Acid, soap, acetone, Water
12 Apparatus for test specimen preparation Corrosion Resistance as
per Cl.12
By Moneypenny Strauss Test (IS 10461 (Part2):1994)
Single use corrosive solution prepared by dissolving 100 g of
copper sulphate pentahydrate in 700 ml of distilled water. Then
add 184 g (100ml) of sulphuric acid and made up to 1000 ml with
distilled water
Conical flask of one litre fitted with four ball rising condenser
weigh balance, Hot Plate, test piece support, copper filings
Mechanical/chemical preparation and degreasing apparatus and
reagents including Grade 120 Abrasive Paper or cloth,
Hydrochloric Acid,Nitric Acid, Tricholoroethylene or any other
suitable solvent
Apparatus for bend test, flattening test

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ANNEXURE B
TO PRODUCT MANUAL FOR
Stainless Steel Plate, Sheet and Strip
According to IS 6911:2017

LIST OF TESTING EQUIPMENT

INDICATIVE LIST OF TEST APPARATUS, CHEMICALS AND REAGENTS FOR
CHEMICAL ANALYSIS THROUGH CHEMICAL METHODS AS PER IS 228

1. Strohlein or Leco apparatus with all attachments Barometer cl.8.1, 8.2 – C & S
with chart, Hot plate, Muffle furnace, Complete range of
glass wares, measuringcylinders, Desiccator, porcelain (chemical method, alternative to
boats or ceramic crucibles, Thermometer, Electronic instrumental method)
Balance, Distilled Water, Hot air oven, Oxygen - 99.5
percent minimum purity, ether or acetone Standard
Reference Material (NML) with certificateReagents for C:
tin granules or pure iron fillings, acidulated water/brine
water, methyl red, caustic potashReagents for S: Ceramic
boats/crucibles – desiccators, Fluxes -Low sulphur copper,
tin or iron, Dilute hydrochloric acid, Starch Iodide solution,
Potassium iodate

Weighing balance, Heater/ Heating element along with Phosphorus content Cl 8.1,8.2
energy regulator, Ice water bath, Vol Flask Cap – 1 litre,
(Whatman) filter paper No. 040, Suction Filtration Facility, (chemical method, alternative to
Filter paper pulp pad, Standard Reference Material (NML) instrumental method)
with certificate, Potassium Permanganate (KMnO4),
Sodium Nitrite (Na2NO3), Ammonium Molybdate [(NH4)2
Mo2O7], Ammonium Phosphate [(NH4)3 PO4], Potassium
Nitrate (K2NO3), Phenolphthalein Solution, Rectified spirit
or methyl alcohol, Sodium Hydroxide (NaOH),
Hydrofluoric Acid (HF), Perchloric Acid (HClO4),
Sulphurous Acid, ,Hydrobromic Acid (HBr) , other
chemicals and reagent as applicable
2.
Hot plate, Conical flask Manganese content Cl 8.1,8.2

Reagents: silver nitrate, ammonium persulphate sodium (chemical method, alternative to

arsenite solution, Dilute Nitric Acid, Phosphoric Acid, instrumental method)
Dilute Sulphuric Acid, Concentrated .Nitric Acid, NaCl
Solution, Permanganic acid
3.
Medium textured filter paper, Porcelain casserole, platinum Silicon content Cl 8.1,8.2
crucible,filter paper pulp, hot plate, hot air oven, muffle
furnace (chemical method, alternative to
instrumental method)
4. Reagents: Silver nitrate solution, concentrated nitric acid,

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concentrated sulphuric acid, Dilute Hydrochloric Acid,

Dilute Sulphuric Acid, Perchloric Acid, Tartaric acid and

hydroflouric acid

Plate, Muffle Furnace, porcelain or silica crucible, Cu content Cl 8.1,8.2

Reagents: HotWash Solution(dilute sulphuric acid solution (chemical method, alternative to

1 : 99 v/v with hydrogen sulphide), dilute sulphuric acid, instrumental method)
hydrogen sulphide, Dilute Nitric Acid, Sodium Fluoride,
solid, Dilute Ammonium Hydroxide, Acetic Acid,
Potassium Iodide, Starch Solution, Sodium Thiosulphate
Solution, Ammonium Bifluoride Solution
5.
ashless paper pulp, paper pulp pad, hot plate, dessicator, Ni content Cl 8.1,8.2

Reagents: ammonium nitrate, methyl red, dilute ammonium (chemical method, alternative to
hydroxide, Concentrated hydrochloric acid Concentrated instrumental method)
nitric acid, Perchloric acid, Hydrofluoric Acid
6.
Hot plate, stop watch Cr content Cl 8.1,8.2

Reagents: dilute sulphuric acid and phosphoricacid mixture, (chemical method, alternative to
concentrated nitric acid, ammonium persulphate , silver instrumental method)
nitrate, dilute hydrochloric acid, ferrous ammonium
sulphate, standard potassium permanganate solution.
7.
Nitrogen content shall be occasionally tested.
Note:

1. This is an indicative list for the purpose of guidance only and may not be taken as exhaustive

2. In case of Test method as per IS 228 is followed, facility/alternate arrangement for Al( in case
of Al-killed), Nitrogen testing and Microalloying elements to be verified, accordingly scope of
licence to be defined.

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ANNEXURE C
TO PRODUCT MANUAL FOR
Stainless Steel Plate, Sheet and Strip
According to IS 6911:2017

SCHEME OF INSPECTION AND TESTING

FOR CERTIFICATION OF IS 6911:2017

1. LABORATORY – A laboratory shall be maintained which shall be suitably equipped (as per the
requirement given in Column 2 of Table-1) and staffed, where different tests given in the specification
shall be carried out in accordance with the methods given in the specification.

The manufacturer shall prepare and implement a calibration plan for the test equipment.

2 TEST RECORDS The manufacturer shall maintain test records for the tests carried out to establish
conformity.

3 LABELLING AND MARKING : The Standard Mark as given in Schedule of the license and
Licence Number (i.e. CM/L….............) shall be incorporated, and the marking shall be done as per the
provisions of the Indian Standard, provided always that the product thus marked conforms to all the
requirements of the specification. In addition, details of BIS website shall be marked as follows: “For
details of BIS certification please visit www.bis.gov.in”

4 CONTROL UNIT: For the purpose of this scheme the material or part thereof representing the same
cast, condition and form processed to same nominal thickness and same surface finish, shall constitute a
control unit

5 LEVELS OF CONTROL - The test and inspection indicated in Table 1 attached and at the levels of
control specified therein shall be carried out on the whole production covered under this scheme and
appropriate records maintained in accordance with paragraph 2 above..

6. TEST CERTIFICATE-

i) For each consignment of BIS Certified material conforming to this specification there shall be a test
certificate which shall contain the Standard Mark, the lot/cast number and the corresponding test
results (as given in Annexure I enclosed).

ii) In cases where the Stainless Steel coil/plate is procured from outside as raw material for further
rolling, the coil/plate procured shall be ISI marked only as per IS 6911. Further, the ISI marked test
certificate of the raw material coil/plate shall also be enclosed along with the above test certificate in
case of all consignments.

iii) The above provisions are equally applicable for both domestic and foreign manufacturers.

7. REJECTIONS–Disposal of non-conforming product shall be done in such a way so as to ensure that

there is no violation of provisions of BIS Act, 2016. Any rejected material which is potentially re-
salable be sheared or cut or deformed in such a manner that it cannot be used for any other purpose
except re-melting. A separate record shall be maintained giving information on quantity and cast
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number/coil number/control unit number, as applicable, relating to all such rejections/defective/sub-

standard material of the production not conforming to the requirements of the Specification and the
method of its disposal. Such material shall in no case be stored together with that conforming to the
Specification. The Standard Mark (if already applied) on rejected material should be defaced.

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SCHEME OF INSPECTION AND TESTINGFOR CERTIFICATION
OF IS 6911:2017
Table 1: Levels of Control

(In addition to the test requirements given below, there may be other requirements in the Standard forexample clause 5 (Manufacture) for
which compliance is to be ensured and demonstrated to BIS)

(1) (2) (3)

Test Details Test Levels of Control
equipment
requireme
Cl. Requirement Test Methods ntR: No. ofSample Frequency Remarks
Clause Reference required
(or)S: Sub-
contracting
permitted
6 Freedomfrom 6.1 IS R Each Plate/sheet/ Each Plate/sheet If found defective,item
Defects 6.2 6911:2017 strip / strip shall
be rejected and notbe
marked.

7 Chemical IS 228 or any other R

Composition established
instrumental/chemical
method
Ladle 7.1 IS R One Each Heat Applicable for
Analysis 9.1.1 6911:2017 primary stainless
Table1 IS 228 steel producers only
Product 7.2 IS 6911:2017 R As agreed between purchaser and supplier Applicable for
analysis 9.1.2 IS 228 refer Cl.9.1.2 of primary producers.
Table1 IS 6911: 2017
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R One Each Cast Applicable for
manufacturers not
having steel making
facilities and are
procuring raw material
stainless steels
coils/plates for further
rolling.

Such manufacturers
must ensure that the
raw material stainless
steel coils/plates
procured by them are
ISI marked only as per
IS 6911 and are
received with test
certificate.

The above provisions

are equally applicable
for both domestic and
foreign manufacturers.
10 Tensile test: 10.1 IS R *One Each Control unit *refer Cl 9.2 of IS
a)0.2Percent 10.4 6911:2017 6911:2017
proof Stress 10.5 IS 1608
b) Tensile Table 4 & As per Cl 15.4, In case
Strength Table 6 of modified texture/
c) special finishes, as
Percentag mutually agreed between
e supplier and customer,
Elongatio the mechanical
n properties shall be
checked on the base
metal only
Table 4, -do-
Table 5 *One Each
10.2 & Table 6 Control
d) Hardness 10.4 IS 1500(part unit
1)
IS 1586
(part1)
IS 1501(part Each
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132893/2022/CMD-II April 2021
1) One control
10.3& unit
e)Bend 10.3.1 IS 1599
Test(if Table 4
required)
11 Erichsen 9.2 11.1 IS 10175 R Refer Cl.11 of IS Subject to agreement
CuppingTest & 11.2 6911:2017 between Purchaser
Table 7 and
supplier
12 Corrosion 12 IS 6911:2017 R Refer Cl.11 of IS The material shall
Resistance IS 10461(part 6911:2017 be tested
1) for corrosion
IS 10461(part resistance if and
2
as required by the
purchaser.
15 Surface Finish 15.1 IS 6911:2017 R Each Each Plat If found defective
15.2,15.3 Plate/ e/Sheet/ Strip item shall be rejected
Table 8 Sheet/Strip and not be
marked
17 Dimensions 17.1 IS 6911:2017 R Adequate inspection to ensure each item to be within
andTolerance 17.2 the limits of specification
Table 9
to 19
13 Other Test 13 IS 6911:2017 R Any test, other than those specified in this
specification, may be conducted subject to mutual
agreement between the purchaser and
the supplier.

Note-1: Whether test equipment is required or sub-contracting is permitted in column 2 shall be decided by the Bureau and shall be
mandatory. Sub-contracting is permitted to a laboratory recognized by the Bureau or Government laboratories empaneled by the Bureau.

Note-2: The control unit and levels of control as decided by the Bureau are obligatory to which the licensee shall comply with.
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ANNEXURE – I
(PARA 6 OF THE SCHEME OF INSPECTION AND TESTING)
XYZ IRON AND STEEL COMPANY
(REGD OFFICE AND WORKS ADDRESS)

TEST CERTIFICATE FOR STAINLESS STEEL PLATE, SHEET AND STRIP

TEST CERTIFICATE NO. , DATE:

TO M/S

We certify that the material below fully conforms to IS 6911:2017. Chemical and mechanical properties of the product, tested in
accordance with the Scheme of Inspection and Testing contained in the BIS certification marks licence no. CM/L- are as
indicated below against each order
(PLEASE REFER TO 6911:2017 FOR SPECIFICATION REQUIREMENTS)

TEST RESULTS

Order No. Type and Size Control Unit Grade, Qty Chemical Composition (in % by wt) Mechanical
No. condition, heat properties
treatment,
surface finish

Si

Mn

Ni

Cr

Mo

N
Cu
Ors
Hardness

YS

TS

Elongatio
REMARKS
WAGON NO.
TRUCK NO. FOR XYZ IRON AND STEEL COMPANY

(It is suggested that size A4 paper be used for this test certificate)