|
|
发表于 2010-2-26 12:25:18
|
显示全部楼层
来自: 中国北京
本帖最后由 VICTORLUO888 于 2010-2-26 12:27 编辑
$ k/ u: l) E7 I$ O; j3 }* f( X3 O
: `$ _2 J) d6 i4 S2 @/ s3 J, c对应球铁标准ASTM A536,材质只是参考参数,如下:. K; S- }( I6 u1 K2 D* O% ?
65-45-12 国标QT450-109 {( g+ K3 F& ]# A, Y' {
Carbon (C) 3.25-3.75 Chromium (Cr) 0.25 max# }3 _. q) A# M5 R% |
Silicon (Si) 2.25-2.60 Sulfur (S) 0.015 max
" P$ h9 c5 ^" p5 r$ }+ s9 bManganese (Mn) 0.2-0.5 Phosphorus (P) 0.080 max3 A* U, T J9 p, h5 t! K3 t
Nickel (Ni) 0.5-1.02 X& e3 \( O N3 E3 c* o
80-55-6 国标QT500-79 \: E; M$ G& k4 s
Carbon (C) 3.0-3.8 Copper (Cu) 0.3-0.7 (optional)**
$ c; E( H) d" }* \# _1 dSilicon (Si) 2.0-2.6 Chromium (Cr) 0.025 max9 A4 _' M4 f4 n& B8 {
Manganese (Mn) 0.5-1.0 Sulfur (S) 0.015 max
% W, d+ u* n/ X# p8 N8 p( SMolybdenum (Mo) 0.35-0.50 Phosphorus (P) 0.08 max
/ @- }( d; o3 D4 c- p8 r: K6 V" QNickel (Ni) 0.5-1.0 t l% c- c# Q' ^5 `: I( i
ASTM A48是灰铁的标准,其中30对应国标HT250,参考化学范围如下:
; D- V% I0 X- nCarbon (C) 2.9-3.5 Chromium (Cr) 0.25 max6 {1 P f, n: @
Silicon (Si) 1.9-2.3 Sulfur (S) 0.20 max$ w5 w/ N3 d# V" A( K* T( M
Manganese (Mn) 0.5-0.9 Phosphorus (P) 0..20 max |
评分
-
查看全部评分
|