ASTM D4203-00

Standard Specification for Styrene-Acrylonitrile (SAN) Injection and Extrusion Materials

SCOPE
1.1 This specification covers unfilled, filled, and reinforced styrene acrylonitrile (SAN) materials suitable for injection molding and extrusion.
1.2 This specification is not intended for the selection of materials, but only as a means of calling out materials to be used in the manufacture of parts. Materials are to be selected by personnel with expertise in the plastics field where the economics, the environment to be encountered, the inherent properties of the materials, the part design, the part performance required, and the manufacturing process to be employed all enter into the selection.
1.3 The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These will be agreed upon between the user and the supplier, by using the suffixes specified in Section 7.
1.4 The values stated in SI units are to be regarded as the standard. The values in parentheses are given for information only. (see IEEE/ASTM SI 10.)
1.5 The following precautionary caveat pertains only to the test methods portion, Section 15, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1-- Although this specification and ISO 4894/1 differ in approach or detail, data obtained using either are technically equivalent.

General Information

• Status: Historical
• Publication Date: 09-Jul-2000
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.15 - Thermoplastic Materials

Relations

• Replaced By: ASTM D4203-07 - Standard Specification for Styrene-Acrylonitrile (SAN) Injection and Extrusion Materials
• Effective Date: 01-Mar-2007
• Referred By: ASTM D4000-23 - Standard Classification System for Specifying Plastic Materials
• Effective Date: 10-Jul-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 4203 – 00
Standard Specification for
Styrene-Acrylonitrile (SAN) Injection and Extrusion
Materials
This standard is issued under the fixed designation D 4203; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* Insulating Materials for Testing
D 638 Test Method for Tensile Properties of Plastics
1.1 This specification covers unfilled, filled, and reinforced
D 648 Test Method for Deflection Temperature of Plastics
styrene acrylonitrile (SAN) materials suitable for injection
Under Flexural Load
molding and extrusion.
D 790 TestMethodsforFlexuralPropertiesofUnreinforced
1.2 This specification is not intended for the selection of
and Reinforced Plastics and Electrical Insulating Materi-
materials, but only as a means of calling out materials to be
als
used in the manufacture of parts. Materials are to be selected
D 792 TestMethodsforDensityandSpecificGravity(Rela-
by personnel with expertise in the plastics field where the
tive Density) of Plastics by Displacement
economics, the environment to be encountered, the inherent
D 883 Terminology Relating to Plastics
properties of the materials, the part design, the part perfor-
D 1238 Test Method for Flow Rates of Thermoplastics by
mancerequired,andthemanufacturingprocesstobeemployed
Extrusion Plastometer
all enter into the selection.
D 1525 Test Method for Vicat Softening Temperature of
1.3 The properties included in this specification are those
Plastics
required to identify the compositions covered. There may be
D 1600 Terminology for Abbreviated Terms Relating to
other requirements necessary to identify particular character-
Plastics
istics important to specialized applications. These will be
D 2584 Test Method for Ignition Loss of Cured Reinforced
agreed upon between the user and the supplier, by using the
Resins
suffixes specified in Section 7.
D 3641 Practice for Injection Molding Test Specimens of
1.4 The values stated in SI units are to be regarded as the
Thermoplastic Molding and Extrusion Materials
standard. The values in parentheses are given for information
D 3892 Practice for Packaging/Packing of Plastics
only (see IEEE/ASTM SI 10.)
D 4000 Classification System for Specifying Plastic Mate-
1.5 The following precautionary caveat pertains only to the
rials
test methods portion, Section 15, of this specification: This
E29 Practice for Using Significant Digits in Test Data to
standard does not purport to address all of the safety concerns,
Determine Conformance with Specifications
if any, associated with its use. It is the responsibility of the user
E 105 Practice for Probability Sampling of Materials
of this standard to establish appropriate safety and health
IEEE/ASTM SI 10 Standard for Use of the International
practices and determine the applicability of regulatory limita-
System of Units (SI): The Modern Metric System
tions prior to use.
2.2 ISO Standards:
NOTE 1—Although this specification and ISO 4894/1 differ in approach
ISO 75 Plastics and Ebonite—Determination of Tempera-
or detail, data obtained using either are technically equivalent.
ture of Deflection Under Load
ISO 178 Plastics—Determination of Flexural Properties of
2. Referenced Documents
Rigid Plastics
2.1 ASTM Standards:
ISO 180/1A Plastics—Determination of Izod Impact
D 256 Test Method for Determining the Pendulum Impact
Strength of Rigid Materials
Resistance of Notched Specimens of Plastics
ISO 294 Plastics—Injection Moulding Test Specimens of
D 618 Practice for Conditioning Plastics and Electrical
Thermoplastic Materials
This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Annual Book of ASTM Standards, Vol 08.02.
Materials (Section D20.15.03). Annual Book of ASTM Standards, Vol 14.02.
Current edition approved July 10, 2000. Published October 2000. Originally Annual Book of ASTM Standards, Vol 14.04.
published as D 4203 – 89. Last previous edition D 4203 – 95. Available from American National Standards Institute, 11 W. 42nd St., 13th
Annual Book of ASTM Standards, Vol 08.01. Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D4203–00
ISO 306 Plastics—Determination of Vicat Softening Tem- 4. Classification
perature of Thermoplastics
4.1 SAN compounds are typically general-purpose materi-
ISO 527 Plastics—Determination of Tensile Properties
als used in either molding or extrusion processes and applica-
ISO 1133 Plastics—Determination of the Melt Flow Rate of tions. There is currently no group, class, or grade distinctions
Thermoplastics and no basic property table given.
ISO 1183 Plastics—Methods for Determining the Density
NOTE 2—Where no basic property table exists, the generic family
and Relative Density of Non-Cellular Plastics
designation will be followed by three zeros, for example: SAN000.
ISO 4894/1 Plastics—Styrene/Acrylonitrile (SAN) Copoly-
4.1.1 They are usually grouped as reinforced or unrein-
mer Molding and 4894/2 Extrusion Materials Part 1:
forced. Therefore, SAN materials are classified by Table A for
Designation, Part 2: Determination of Properties
reinforced materials and Table B for unreinforced materials.
Specialty products such as antistatic, barrier, etc. would also
3. Terminology
utilize the suffix system described in Section 7.
3.1 Definitions—Definitions are in accordance with Termi- 4.1.2 Each compound is given a five-digit cell classification
nology D 883 and abbreviations are in accordance with Termi- representing the physical properties in the order in which they
nology D 1600, unless otherwise indicated. The abbreviation are listed in the cell table.
for styrene-acrylonitrile plastics is SAN. 4.2 ReinforcedandlubricatedversionsoftheSANmaterials
3.2 Definitions of Terms Specific to This Standard: are classified in accordance with Table A, which specifies the
3.2.1 lot—a unit of manufacture; may consist of a blend of properties after the addition of reinforcements or lubricants at
two or more production runs or batches of material. the nominal level indicated (see 4.2.1).
TABLE A SAN Compounds (Reinforced)
Cell Limits
Designation
Property
Order Number
0 1 234 5 9
A
1 AN Content, % AN, min Unspecified 10 20 30 40 50
A
(ISO, % AN, min) (Unspecified) (10) (20) (30) (40) (50)
A
2 Deflection temperature under load, Unspecified 90 95 100 105 110
B
ASTM D 648, °C, min
A
(ISO 75, °C, min) (Unspecified) (90) (95) (100) (105) (110)
A
3 Specific gravity, ASTM D 792, min Unspecified 1.1 1.2 1.4 1.6 1.8
A
(ISO 1183, min) (Unspecified) (1.1) (1.2) (1.4) (1.6) (1.8)
A
4 Tensile strength, ASTM D 638, MPa, Unspecified 60 80 100 120 140
B
min
A
(ISO 527, MPa, min) (Unspecified) (60) (80) (100) (120) (140)
A
5 Flexural modulus, ASTM D 790 MPa, Unspecified 3000 4500 6000 7500 9000
B
min
A
(ISO 178, MPa, min) (Unspecified) (2800) (4200) (5600) (7000) (8500)
A
If specific value is required, it must appear on drawing or contract, or both.
B
MPa 3 145 = psi.
TABLE B SAN Compounds (Unreinforced)
Cell Limits
Designation
Property
Order Number
01 2 3 4 5 9
A
1 AN Content,% AN, min Unspecified 10 20 30 40 50
A
(ISO, % AN, min) (Unspecified) (10) (20) (30) (40) (50)
A
2 Vicat softening point, ASTM D 1525, Unspecified 90 100 105 110 120
°C, min
A
(ISO 306, °C, min) (Unspecified) (85) (95) (100) (105) (110)
A
3 Flow rate, ASTM D 1238, g/10 Unspecified 2 5 10 15 20
minutes, min
A
(ISO 1133, g/10 minutes, min) (Unspecified) (5) (15) (25) (40) (50)
A
4 Tensile strength, ASTM D 638, MPa, Unspecified 50 60 70 80 95
B
min
A
(ISO 527, MPa, min) (Unspecified) (50) (60) (70) (80) (95)
A
5 Flexural modulus, ASTM D 790, MPa, Unspecified 2600 3000 3400 3800 4200
B
min
A
(ISO 178, MPa, min) (Unspecified) (2400) (2800) (3200) (3600) (3900)
A
If specific value is required, it must appear on drawing or contract, or both.
B
MPa 3 145 = psi.
D4203–00
4.2.1 A single letter shall be used for the major reinforce- 4.4 ISO test methods and correlated cell values have been
ment or combination, or both, along with two digits that included for informational purposes. They have been provided
indicate the percentage of addition by mass, with the tolerance for those international users wishing to determine the corre-
as tabulated below: sponding ISO test values for a particular SAN callout.
Symbol Material Tolerance
NOTE 6—Using the example ASTM callout in Note 5, (ISO)
C Carbon- and graphite-fiber rein- 62%
SAN000B22320 would indicate:
forced
G Glass-reinforced 62%
(ISO) = ISO line-property requirements,
L Lubricants (PTFE, for example) by agreement between the supplier
SAN000 = Styrene acrylonitrile material,
graphite, silicone and molyb- and the user
B = Table B,
denum disulfide
2 = % AN, 20%, min,
M Mineral-reinforced 62%
2 = Vicat softening point, 95°C, min,
R Combinations of reinforcements 63 % for the total reinforcement
3 = Flow rate, 25 g/10 min, min,
or filler, or both
2 = Tensile strength, 60 MPa, min,
0 = Flexural modulus, unspecified.
NOTE 3—This part of the system uses percent of reinforcements or
additives, or both, in the callout of the modified basic material. The types NOTE 7—Internationally, ANSI has been working with ISO to harmo-
and percentages of reinforcements and additives should be shown on the nize specification and designation documents in three specific areas,
supplier’s technical data sheet unless this information is proprietary in including SAN. A correlation was carried out and has been appended for
nature. If necessary, additional callout of these reinforcements and information purposes.This study provided the basis for the correlated ISO
additives can be accomplished by the use of the suffix part of the system, values found in the cell tables and the novel approach of being able to
as described in Section 7. determine a specified product’s property requirements by eitherASTM or
ISO test methods.
4.2.2 Specific requirements for reinforced, filled, or lubri-
cated materials shall be shown by a six-character designation.
5. Ordering Information
The designation shall consist of the letter A and the five digits
5.1 The SAN compound shall be as agreed upon between
comprising the cell numbers for the property requirements in
the purchaser and seller, and the following information should
the order in which they appear in Table A.
be included in the purchase order:
4.2.2.1 Although the values listed are necessary to include
5.1.1 Quantity and packaging;
the range of properties available in existing materials, users
5.1.2 Cell classification, as described in TableAor Table B;
should not infer that every possible combination of the
5.1.3 Color reference should be made to color chip number,
properties exists or can be obtained.
if available;
NOTE 4—An example of this classification for a reinforced SAN is as
5.1.4 Form, for example, pellets, granules, or powder; and
follows:
5.1.5 This ASTM designation, “D 4203,” and the year of
The designation SAN000G30A34421:
issue.
SAN000 = Styrene acrylonitrile material,
G30 = Glass reinforced at 30 % nominal level,
A = Table A for property requirements,
6. Materials and Manufacture
3 = % AN, 30 %, min,
4 = Deflection temperature under load, 105°C, min,
6.1 The SAN compounds are produced by the polymeriza-
4 = Specific gravity, 1.6, min,
tion of the monomers acrylonitrile and styrene.
2 = Tensile strength, 80 MPa, min, and
1 = Flexural modulus, 3000 MPa, min, 6.2 TheSANcompoundshallbeuniformincomposition,as
If no properties are specified, the designation would be SAN000G30A00000.
defined by the cell classification, and shall be of size, shape,
4.3 Table B classifies all unreinforced SAN materials. Table and color, as specified by the product specification, or purchase
B shall be used in the same manner as Table A. order or contract.
6.3 Colorants may be added in concentrate form to the SAN
NOTE 5—An example of this classification for an unreinforced SAN is
compounds.Additives necessary for compounding may also be
as follows:
present.
The designation SAN000B22320 indicates:
SAN000 = Styrene acrylonitrile material,
B = Cell Table B, property requirements,
7. Suffıx Requirements Suffix Requirements
2 = % AN, 20 %, min,
2 = Vicat softening temperature, 100°C, min,
7.1 Whenrequirementsareneededthatsupersedeorsupple-
3 = Flow rate, 10 g/10 min, min
ment the cell-table requirements, they shall be specified
2 = Tensile strength, 60 MPa, min, and
through the use of suffixes. In general, the first suffix letter
0 = Flexural modulus, unspecified,
indicates the special requirement needed and the second letter
4.3.1 Mechanical properties of pigmented or colored SAN
indicates the condition or test method, or both, with a three-
materials can differ from the mechanical properties of natural
digit number indicating the specific requirement. The suffixes
SAN material, depending on the choice and concentration of
that may be used are listed in the Suffix Symbols and
colorants. The main property affected is ductility, as illustrated
Requirements Table 3 of Classification System D 4000.
by a reduction in Izod impact strength and tensile-elongation
values. If specific properties of pigmented SAN materials are
8. Basic Requirements
necessary, prior testing between the materials supplier and end
user should be initiated. Once these agreements are reached, a 8.1 Basic requirements from the cell tables, as they apply,
classification using Cell Table B should be employed to ensure are always in effect unless these requirements are superseded
proper property compliance. by specific suffix requirements, which always take precedence.
D4203–00
9. General Requirements 15.1.4 The tensile strength at yield shall be determined on a
3.2-mm ( ⁄8-in.) thick injection-moldedType I specimen, tested
9.1 The material composition shall be uniform and shall
at 5 mm/min (0.2 in./min).
conform to the requirements specified herein. Specification
15.1.5 The flexural modulus shall be determined on a 12.5
changes due to the effects of colorants shall be noted by the
1 1
by 3.2-mm ( ⁄2 by ⁄8-in.) injection-molded specimen, (50.8-
materials supplier and the end user and, where necessary, shall
mm) 2-in. span, tangent, Method I, at 1.3 mm/min (0.05
be covered by suffixes.
in./min).
15.1.6 The glass content of glass-reinforced materials shall
10. Detail Requirements
be determined in accord
...