ASTM F836 A2-70

ASTM F836 A2-70 Nuts, ASTM F836 A2-70 Heavy Hex Nuts, ASTM F836 A2-70 Square Nuts, ASTM F836 A2-70 Hex Nuts, ASTM F836 A2-70 Hex Head Nuts Supplier in Mumbai, India.

The ASTM F836M standard specifies the chemical and mechanical requirements for Metric Hex Nuts, Square Nuts, and Flange Nuts with nominal thread sizes ranging from M1.6 to M36 and intended for use in engineering applications requiring general corrosion resistance. Three austenitic (Grades A1, A2, and A4) stainless steel alloys are discussed, as well as one ferritic (Grade F1), three martensitic (Grades C1, C3, and C4), and one precipitation hardening stainless steel alloy (Grade P1). There are nine austenitic property classes, one ferritic property class, six martensitic property classes, and one precipitation hardening property class covered.

Chemical Composition

Grade C Mn P S Si Cr Ni Cu
A2-70 Min - - - - - 15.0
Max 0.1 2.0 0.05 0.03 1.0 20.0 19.0 4.0
304 Min - - - - - 18.0 8.0
Max 0.08 2.0 0.045 0.03 0.75 20.0 10.5
304L Min - - - - - 18.0 8.0
Max 0.03 2.0 0.045 0.03 0.75 20.0 12.0
304H Min 0.04 - - - - 18.0 8.0
Max 0.10 2.0 0.045 0.03 0.75 20.0 10.5

Mechanical Properties

Nominal Size and Thread Pitch Stress Area, mm2 Proof Load Stress, MPaA
450 500 550 600 650 700 800 900 1100 1200
M1.6 × 0.35 1.27 0.57 0.64 . . . 0.76 . . . 0.89 1.02 1.14 1.40 1.52
M2 × 0.4 2.07 0.93 1.04 . . . 1.24 . . . 1.45 1.66 1.86 2.28 2.48
M2.5 × 0.45 3.39 1.52 1.70 . . . 2.03 . . . 2.37 2.71 3.05 3.73 4.07
M3 × 0.5 5.03 2.26 2.52 . . . 3.02 . . . 3.52 4.02 4.53 5.53 6.04
M3.5 × 0.6 6.78 3.05 3.39 . . . 4.07 . . . 4.75 5.42 6.10 7.46 8.14
M4 × 0.7 8.78 3.95 4.39 . . . 5.27 . . . 6.15 7.02 7.90 9.66 10.5
M5 × 0.8 14.2 6.39 7.10 . . . 8.52 . . . 9.94 11.4 12.8 15.6 17.0
M6 × 1 20.1 9.05 10.1 . . . 12.1 . . . 14.1 16.1 18.1 22.1 24.1
M8 × 1.25 36.6 16.5 18.3 . . . 22.0 . . . 25.6 29.3 32.9 40.3 43.9
M10 × 1.5 58.0 26.1 29.0 . . . 34.8 . . . 40.6 46.4 52.2 63.8 69.6
M12 × 1.75 84.3 37.9 42.2 . . . 50.6 . . . 59.0 67.4 75.9 92.7 101 
M14 × 2 115 51.7 57.5 . . . 69.0 . . . 80.5 92.0 104  127  138 
M16 × 2 157  70.7 78.5 . . . 94.2 . . . 110  126  141  173  188 
M20 × 2.5 245  110   123  135 147  . . . 172  196  221  270  294 
M24 × 3 353  159  177  194 212  . . . 247  282  318  388  424 
M30 × 3.5 561  252  281  309 337  365 393  449  505  617  673 
M36 × 4 817  368  409  449 490  . . . 572  654  735  899  980