Blog
  2. ASTM
  3. Rivets
  4. ASTM F3329 Specification

ASTM F3329 Carbon & Alloy Steel Rivets Specification

ASTM F3329 Class 3.6/4.6/4.8/5.6/5.8/6.8/8.8/9.8/10.9 Steel Rivets

ASTM F3329 specification covers chemical and mechanical requirements for nine property classes of carbon and alloy steel metric rivets in nominal diameters M01 through M36 suited for use in general engineering applications. When agreed on by the purchaser, Class 5.8 fasteners may be supplied when either Classes 4.6 or 4.8 are ordered; Class 4.8 may be supplied when Class 4.6 is ordered.

ASTM F3329 Chemical Composition Requirements

Property Class Material and heat treatment Product Analysis Element (% by weight) Tempering Temperature, °C
C P S BA
min max max max max min
3.6 Carbon steel or carbon steel with additives ... 0.20 0.050 0.060 0.003 ...
4.6B ... 0.55 0.050 0.060 0.003 ...
4.8 ... 0.55 0.050 0.060 0.003 ...
5.6B 0.13 0.55 0.050 0.060 0.003 ...
5.8 ... 0.55 0.050 0.060 0.003 ...
6.8 Carbon steel with additives (for example, Boron or Mn or Cr) quenched and tempered ... 0.55 0.050 0.060 0.003 ...
0.15C 0.40 0.025 0.025 0.003 ...
8.8D Carbon steel quenched and tempered 0.25 0.55 0.025 0.025 0.003 425
Alloy steel quenched and temperedE 0.20 0.55 0.025 0.025 0.003 425
Carbon steel with additives (for example, Boron or Mn or Cr) quenched and tempered 0.15C 0.40 0.025 0.025 0.003 425
9.8D Carbon steel quenched and tempered 0.25 0.55 0.025 0.025 0.003 425
Alloy steel quenched and temperedE 0.20 0.55 0.025 0.025 0.003 425
Carbon steel with additives (for example, Boron or Mn or Cr) quenched and tempered 0.20C 0.55 0.025 0.025 0.003 425
10.9D Carbon steel quenched and tempered 0.25 0.55 0.025 0.025 0.003 425
Alloy steel quenched and temperedE 0.20 0.55 0.025 0.025 0.003 425
  • (A) Boron content can reach 0,005 %, provided non-effective boron is controlled by the addition of titanium or aluminum, or both.
  • (B) For cold forged fasteners of property classes 4.6 and 5.6, heat treatment of the wire used for cold forging or of the cold forged fastener itself may be necessary to achieve required ductility.
  • (C) In case of plain carbon boron steel with a carbon content below 0,25 % (cast analysis), the minimum manganese content shall be 0,6 % for property class 8.8 and 0,7 % for property classes 9.8 and 10.9
  • (D) For the materials of these property classes, there shall be a sufficient hardenability to ensure a structure consisting of approximately 90 % martensite in the core of the shaft of the rivet in the "as-hardened" condition before tempering.
  • (E) This alloy steel shall contain at least one of the following elements in the minimum quantity given: chromium 0,30 %, nickel 0,30 %, molybdenum 0,20 %, vanadium 0,10 %. Where elements are specified in combinations of two, three or four and have alloy contents less than those given above, the limit value to be applied for steel class determination is 70 % of the sum of the individual limit values specified above for the two, three or four elements concerned.

ASTM F3329 Mechanical Requirements for Rivets

Property Class Machined Test Specimens of Rivets Surface Hardness Product Hardness
Yield Strength, MPa Tensile Strength, MPa Elonga-tion, % Reduction of Area, % Vickers HV 0.3 Rockwell Vickers HV
min min min min max min max min max
3.6 190 330 25 ... ... B52 B95 95 220
4.6 240 400 22 ... ... B67 B95 120 220
4.8 340 420 ... ... ... B71 B95 130 220
5.6 300 500 20 ... ... B79 B95 155 220
5.8 420 520 ... ... ... B82 B95 160 220
6.8 480 600 ... ... ... B89 B99.5 190 250
8.8 640 800 12 52 ... C22 C32 250 320
9.8 720 900 10 48 ... C28 C37 290 360
10.9 940 1040 9 48 390 C32 C39 320 380

ASTM F3329 Property Class Identification Symbols

Property Class Identification Symbol
Rivets
3.6 3.6
4.6 4.6
4.8 4.8
5.6 5.6
5.8 5.8
6.8 6.8
8.8 8.8
9.8 9.8
10.9 10.9

ASTM F3329 Bolting Surface Treatment Specifications

ASTM F3329 Bolting Components Marking

Product Shall be Marked with our manufacturing trade mark "TorqBolt" or "TB" along with the designated Grade.
Grade and manufacturer’s identification symbols shall be applied to one end of studs and to the heads of bolts and screws of all sizes. (If the available area is inadequate, the grade symbol may be marked on one end and the manufacturer’s identification symbol marked on the other end.) For bolts and screws smaller than 1⁄4 in. [6 mm] in diameter and studs smaller than 3⁄8 in. [10 mm] in diameter and for 1⁄4 in. [6 mm] in diameter studs requiring more than a total of three symbols, the marking shall be a matter of agreement between the purchaser and the manufacturer.

ASTM F3329 Bolting Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103