/ c% Q H" ?2 ~ rKey Words: UNS G10200, AMS 5032, AMS 5045, ASTM A29, ASTM A108, ASTM A510, ASTM A519, ASTM A29, A108, A510, A512, A513, A519, A544, A575 M10120, A576, A635, A659, A827, A830, BS 970 040A20, 050A20 (En2C), 050A20 (En2D), 060A20, BS 970 Part 1 070M20, DEF STAN95-1-1 C1020, SAE J412, SAE J414, DIN 1.0402, AFNOR CC 20, UNI C 20, SS14 1450 (Sweden), SAE J403 % s: A/ f9 |+ ?4 A6 m$ [5 H 4 C% w# u" J0 S3 i9 e$ t0 ZComponent Wt. % $ Z" {* L A3 Y4 ~ % K/ w, @8 \2 s5 Z4 P M' m
, M0 a$ `& y5 s3 o
C 0.17 - 0.23 ) }( ^% v) x% N0 P% k/ D) ~: dFe 99.08 - 99.53 ! h9 F4 v2 k* G: C6 {Mn 0.3 - 0.6 ! @ I5 X/ A E$ B/ o0 mP Max 0.04 ) @ P# ]7 x( U4 e6 M
S Max 0.05 ( H: t6 {$ h$ {2 O' R : f6 d" q; n3 }0 H
% B+ h4 l2 g4 x: r+ @% h
Material Notes: 0 ~. @" n4 Y) o q5 ^ \Applications include parts in the case hardened condition where core strength is not critical, and for shafts of larger cross section that are not highly stressed. Other uses include lightly stressed gears with hard wearing surfaces and case hardened pins and chains. " u/ Y" z% a$ e! @+ U% M. Q3 `3 e6 M2 \# d% |; Q$ S3 {
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6 r! H$ Z' ~: T v4 TPhysical Properties Metric English Comments 3 b- C7 k7 w* ^: L/ ] # h) Y, k6 n3 m 4 p8 h5 @/ y( D1 X5 e" P
Density 7.87 g/cc 0.284 lb/in? Typical for steel 7 K3 j9 P. R4 o
- y4 i! R1 X" |# F, X" {. b0 E1 y
Mechanical Properties & Y+ }) M, y; v( L& z + }+ L' @" x# Q$ E5 `; B
; [1 K- C, ]) [, I0 U6 T
Hardness, Brinell 143 143 ]6 }" K3 V# ^! p- v; ?1 D: mHardness, Knoop 163 163 Converted from Brinell hardness. 8 n s+ \0 \7 C; `3 ]* v7 s) p
Hardness, Rockwell B 78 78 Converted from Brinell hardness. + P4 E5 R" U) `1 m! X( Y6 k
Hardness, Vickers 149 149 Converted from Brinell hardness. " i4 Z7 D( d$ y" k
Tensile Strength, Ultimate 450 MPa 65300 psi ' G; f3 J; d- t3 Z
Tensile Strength, Yield 330 MPa 47900 psi # J* ~; \ @. z g' i9 T6 W0 o5 mElongation at Break 36 % 36 % in 50 mm ' P+ s) U0 i1 N. u2 E% ?, I# `Reduction of Area 59 % 59 % 5 L8 s3 ?" C0 p0 R$ [( s% B
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel ( D9 C( u7 s' eBulk Modulus 140 GPa 20300 ksi Typical for steel 0 x) m9 c0 ~1 [3 s2 N
Poisson's Ratio 0.29 0.29 : Q3 w; i* o7 u1 YCharpy Impact 16.9 J 12.5 ft-lb at -30?C (-22?F), 18 J at -18?C (-0.4?F), 20 J at -3?C (26.6?F), 24 J at 10?C (50?F), 41J at 38?C (100?F), 54 J at 65?C (150?F), 61 J at 95?C (200?F), 68 J at 150?C (300?F) " F9 r1 q% b. {+ t2 N, Z$ H, g3 b
Shear Modulus 80 GPa 11600 ksi Typical for steel + L* W+ d: c6 v6 n
U+ V" a" ^2 g. n5 k
Electrical Properties % V; E2 d# D9 A 4 ~3 J! ?0 j6 a- _, [* r
. u; Y2 s2 {5 l1 |% K* }Electrical Resistivity 1.59e-005 ohm-cm 1.59e-005 ohm-cm condition unknown; 0?C (32?F) # X9 f4 ?0 f8 o: @) FElectrical Resistivity at Elevated Temperature 2.19e-005 ohm-cm 2.19e-005 ohm-cm condition unknown; 100?C (212?F) 0 I7 o- b* \6 b6 r6 ^7 C# _+ wElectrical Resistivity at Elevated Temperature 2.92e-005 ohm-cm 2.92e-005 ohm-cm condition unknown; 200?C (390?F) ) ~! x! t9 {/ C9 F9 j& T, }
2 v) P1 v+ J. k+ ?6 ^9 K7 U+ h' K
Thermal Properties * g s$ l3 s# O* O
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CTE, linear 20?C 11.7 ?m/m-?C 6.5 ?in/in-?F 20-100?C (68-212?F) , _, t( u+ Y* d& O2 WCTE, linear 20?C 12.1 ?m/m-?C 6.72 ?in/in-?F 20-200?C (68-390?F) 6 j8 q. f6 n! M* o( s6 l, gCTE, linear 250?C 12.8 ?m/m-?C 7.11 ?in/in-?F 20-300?C (68-570?F) " N1 q& O1 ^% E) T! L- dCTE, linear 250?C 13.3 ?m/m-?C 7.39 ?in/in-?F 20-400?C (68-750?F) ; T. X* I3 g7 f& kCTE, linear 500?C 13.9 ?m/m-?C 7.72 ?in/in-?F 20-500?C (68-930?F) " V3 b) U4 N6 y. P. J/ }9 BCTE, linear 500?C 14.4 ?m/m-?C 8 ?in/in-?F 20-600?C (68-1110?F) " d: H/ T* ~8 b4 b rCTE, linear 500?C 14.8 ?m/m-?C 8.22 ?in/in-?F 20-700?C (68-1290?F) " g) c( R' |) m5 a6 L' nSpecific Heat Capacity 0.486 J/g-?C 0.116 BTU/lb-?F condition unknown; 50-100?C (122-212?F) " u* D7 V7 M: c5 s/ ]- s
Specific Heat Capacity at Elevated Temperature 0.519 J/g-?C 0.124 BTU/lb-?F condition unknown; 150-200?C (302-390?F) 5 g. X+ k# B M3 O$ b' dSpecific Heat Capacity at Elevated Temperature 0.599 J/g-?C 0.143 BTU/lb-?F condition unknown; 350-400?C (662-752?F) ) g) A# @2 }: H$ k) u- O) z$ M- M8 i
Thermal Conductivity 51.9 W/m-K 360 BTU-in/hr-ft?-?F Typical steel