Camber ; {4 ^ j6 t: A" Z厚度及阔度公差 Tolerance on Thickness & Width. h, A6 c( ?/ \1 Z 平坦度(阔度大于500公厘,标准回火). L9 I* Q, e4 L2 n7 o Flatness (width>500mm, temper: standard)7 _. J2 J# C* `9 Y" p 弯度 Camber $ u5 I5 J \2 i4 _冷辘钢片储存与处理提示 & Y! a% P0 a% B- `General advice on handling & storage of cold rolled steel coil & sheet: g* a# y5 }/ W# \ 防止生锈 # I" a1 m( h D3 a' H3 `7 U4 qRust Protection, O$ r2 m0 ^9 Q( S5 M& r1 \5 |8 g8 M 生锈速度表. ^5 n3 a* F. @8 w( v; S Speed of rusting& O3 n7 \+ O4 C4 ?; ~ 焊接 Welding , l& \# N) Y6 |- C; p4 G" M气焊 Gas Welding * e" s# O# O7 L8 H" B* @4 I7 s埋弧焊 Submerged-arc Welding$ M1 n' k. \! ]. I1 M: M 电阻焊 Resistance Welding : L; A: a$ z2 t l冷辘钢片(拉力: 30-32公斤/平方米)在没有表面处理状态下的焊接状况 ' {$ z, D! v, E& J, w* V $ P: l$ l1 ?% N$ o! ^0 HSpot welding conditions for bared (free from paint, oxides etc) Cold rolled mild steel sheets(T/S:30-32 Kgf/ μ m2)" o7 x9 J" Y2 p% Z0 `! a 时间效应(老化)及拉伸应变 ; h6 N5 B7 i0 h9 zAging & Stretcher Strains0 L& ~9 t d3 J# ]0 i 日工标准(JIS G3141)冷辘钢片化学成份( `' A) N4 U: D1 x# B3 s$ j Chemical composition – cold rolled steel sheet to JIS G3141. Y) D1 D8 J7 u' R& T/ m6 ~% S 冷辘钢片的"理论重量"计算方程式 2 o8 ~3 G/ ^4 K) O5 @( T$ WCold Rolled Steel Sheet – Theoretical mass / }' p" n: f5 a日工标准(JIS G3141)冷辘钢片重量列表 ' m0 V) T6 t2 Z- pMass of Cold-Rolled Steel Sheet to JIS G3141 3 R7 v9 `1 T5 D, s冷辘钢片订货需知 0 ?- J& f9 h P$ ROrdering of cold rolled steel strip/sheet ! H/ T# U* S r( ?, s其它日工标准冷轧钢片(用途及编号)X0 l- c$ {: h" P9 L9 C JIS standard & application of other cold Rolled Special Steel - M+ R m% h# w" v0 Y电镀锌钢片或电解钢片0 A- U2 P Z8 M. C8 Z' G3 d Electro-galvanized Steel Sheet/Electrolytic Zinc Coated Steel Sheet$ N7 A# M0 g" r- l/ c( U+ \1 M 简介% Y- t7 O: v7 [9 n4 D% M' h General 5 {* l9 F. Z5 ~, b电解/电镀锌大大增强钢片的防锈能力$ J; y% L, b8 w Galvanic Action improving Weather & Corrosion Resistance of the Base Steel Sheet 8 {0 z2 i- n5 ]- [: b上漆能力 Paint Adhesion1 ~- j* E/ p. Q+ P( r 电镀锌钢片的焊接 & _* D, T7 g) ?Welding of Electro-galvanized steel sheet 2 T, H5 r- j( Z/ P1 I b, L$ ?点焊 $ y) A4 Z& _9 E) b8 J! b9 OSpot welding ! d0 |( H# W/ p1 C滚焊5 l6 v& t$ P: A* v& A7 { Seam welding' T8 v3 W" W+ W8 j; r1 ? 电镀锌(电解)钢片 - Y4 @/ P+ n/ R% U1 X9 uElectro-galvanized Steel Sheet # ?& P+ x0 J. x# S: U( P' S生产流程. h8 [3 S3 C( [# x1 J6 Q, p Production Flow Chart/ X% \+ H0 C4 s# E# x 常用的镀锌钢片(电解片)的基层金属、用途、日工标准、美材标准及一般厚度 , z) m! p% y# {# p+ e1 ABase metal, application, JIS & ASTM standard, and Normal thickness of galvanized steel sheet - Y3 h8 R2 Q5 h0 C" p锌镀层质量 Zinc Coating Mass - a1 n2 \2 X5 d& q8 s' V表面处理 Surface Treatment* \* Z8 u7 |- B* N6 H7 d8 q2 Q 冷轧钢片 Cold-Rolled Steel Sheet/Strip , c) o7 }" f9 V+ _; o; F3 x热轧钢片 Hot-Rolled Sheet/Strip 8 q: i8 M( `& ]: l4 U- n电解冷轧钢片厚度公差 / W; h! @1 D- W6 w$ x8 K" {Thickness Tolerance of Electrolytic Cold-rolled sheet : R* ]2 u) Q6 r9 ]& }热轧钢片厚度公差 . x# Z' u4 u0 [' N4 [Thickness Tolerance of Hot-rolled sheet ) x- t2 U2 x/ {( E. f冷轧或热轧钢片阔度公差 ' q/ v# ]. K: T( v1 BWidth Tolerance of Cold or Hot-rolled sheet 9 j' c/ q5 R& s0 t长度公差 Length Tolerance3 J, B! G& u% S6 Z$ Y1 V7 U6 c 理论质量 Theoretical Mass - q0 c, g9 C/ R锌镀层质量(两个相同锌镀层厚度)* O5 `9 r7 c: o Mass Calculation of coating (For equal coating)/MM4 m, f9 }4 D/ D% x5 T 锌镀层质量(两个不同锌镀层厚度) # B& o7 i! o9 X) {: u8 AMass Calculation of coating (For differential coating)/MM ?/ E/ u7 Q; _3 j7 Z1 U, b7 W镀锡薄铁片(白铁皮/马口铁) (日工标准 JIS G3303); d O, T% K+ P; r 简介 . r+ P1 `. ?. _1 w! UGeneral8 H9 @+ s) i) z( q0 J 镀锡薄铁片的构造6 [+ H) }0 Y3 g, { Construction of Electrolytic Tinplate' \$ }( C1 H# M) |5 ]) C. }; \ 镀锡薄钢片(白铁皮/马日铁)制造过程7 _4 w% m' o9 T) j& h- i Production Process of Electrolytic Tinplate3 t+ p t2 S" Y! _- S2 d 锡层质量 ( i( L6 i- j+ }$ J$ r, L" bMass of Tin Coating (JIS G3303-1987)9 E" o7 ^9 g& V* w r, a+ K 两面均等锡层 ( o+ k1 l, z# z' f$ v, cBoth Side Equally Coated Mass 7 l; `2 {5 w, ]+ J; Q+ q j( r8 k两面不均等锡层 0 Q& Y( Z- U& Q/ c( F% o4 pBoth Side Different Thickness Coated Mass" B' X' K7 K- z 级别、电镀方法、镀层质量及常用称号 9 p+ t% ?6 l0 d, Y, \Grade, Plating type, Designation of Coating Mass & Common Coating Mass , x' y, F: a7 l镀层质量标记* c- M: G2 l! {; b6 i Markings & Designations of Differential Coatings " ^& d0 i6 [/ B, j' \9 c# g w& Q硬度 Hardness 5 u* Y v4 J9 }! U3 R; g y单相轧压镀锡薄铁片(白铁皮/马口铁)9 G. V, |7 q/ e Single-Reduced Tinplate2 n5 `# r& h- _0 i 双相辗压镀锡薄钢片(马口铁/白铁皮)- k$ r% Q7 A3 | Dual-Reduction Tinplate) j) d* N: c$ q 钢的种类 Type of Steel ! v3 \( e6 B6 w0 C表面处理 Surface Finish ) G# e$ ^' t" u% ~常用尺寸 Commonly Used Size1 N( ^% F- s+ U, N; _ 电器用硅 [硅] 钢片 Electrical Steel Sheet4 z: ^7 ?6 ^0 X- Q. ~, i+ k 简介 General " @5 f X) ~1 T4 [! c8 ?( r, T软磁材料 Soft Magnetic Material" y7 O! U1 H* ~1 v 滞后回线 Narrow Hystersis ' b4 X7 \ O" b; e" R矫顽磁力 Coercive Force5 E+ @2 q- I+ K# b- B 硬磁材料 Hard Magnetic Material: D/ X2 t( a/ X/ V+ @ 最大能量积 Maximum Energy Product# I& h, W! E* b1 @ 硅含量对电器用的低碳钢片的最大好处G( J: O3 @* M! J The Advantage of Using Silicon low Carbon Steel0 p# |. A& {. p. k# P 晶粒取向(Grain-Oriented)及非晶粒取向(Non-Oriented)2 j5 k" j: C* Y$ H" L Grain Oriented & Non-Oriented6 H: w+ L( l1 {8 E; G: X 电器用硅 [硅] 钢片的最终用途及规格. J V/ V {- s% X( Q1 X, P( b- M End Usage and Designations of Electrical Steel Strip" Z6 `% f! g. Z! e 电器用的硅 [硅] 钢片之分类 ; g: r* }) _$ A+ ZClassification of Silicon Steel Sheet for Electrical Use: z. z" y2 J* ? 电器用钢片的绝缘涂层 ~8 V. B. w/ I- U' E0 pPerformance of Surface Insulation of Electrical Steel Sheets- h. `3 O! a9 V; B3 u 晶粒取向电器用硅钢片主要工业标准- |: t0 Z( ? ^* a! ]" N) F' M International Standard – Grain-Oriented Electrical Steel Silicon Steel Sheet for Electrical Use4 Y2 v i6 K- t+ d! g 晶粒取向电器用硅钢片 Grain-Oriented Electrical Steel9 B* n$ |+ _ z& h 晶粒取向,定取向芯钢片及高硼定取向芯钢片之磁力性能及夹层系数(日工标准及美材标准) ! |) @ X- _" l) F& @$ D: ]3 A8 W7 M8 g7 z& v* Y9 z Magnetic Properties and Lamination Factor of SI-ORIENT-CORE& SI-ORIENT-CORE-HI B Electrical Steel Strip (JIS and AISI Standard)4 r" L; l# v) a, U: T: O 退火Annealing Z' `& u6 o) x电器用钢片用家需自行应力退火原因 * T* n- i# H, c+ _' G. }Annealing of the Electrical Steel Sheet . D7 B0 p7 }2 i退火时注意事项 Annealing Precautionary. |& V; t/ u) n# _% E' G6 _ N, G 碳污染 Prevent Carbon Contamination ' E1 \1 p' d% m8 j5 ]! i: s热力应先从工件边缘透入 8 E" V7 p2 O3 `% j. JHeat from the Laminated Stacks Edges * b! D+ v ?" F6 S4 \ |; d提防过份氧化5 [5 H( ?# {2 M4 C$ _' v No Excessive Oxidation ~0 B5 C! _& o应力退火温度* l6 s# d G+ q3 z* Z. N$ D4 ^8 K7 H Stress –relieving Annealing Temperature 9 r) c. M k, y晶粒取向电器用硅 [硅] 钢片 – 高硼(HI-B)定取向芯钢片及定取向芯钢片之机械性能及夹层系数v8 w2 u* u- P1 W/ M- S
+ |+ {4 L# [5 \/ uMechanical Properties and Lamination Factors of SI-ORIENT-CORE-HI-B and SI-ORIENT-CORE Grain Orient Electrical Steel Sheets . k( k7 {* M9 c7 q2 U晶粒取向电器用硅 [硅] 钢;片 – 高硼低硫(LS)定取向 钢片之磁力及电力性能 ! _8 `) g x; [/ K! h0 ^: Q5 r; C; V7 B' N1 g Magnetic and Electrical Properties of SI-ORIENT-CORE-HI-B-LS % M; J4 x& e3 {" v6 s$ S晶粒取向电器用硅 [硅] 钢片 – 高硼低硫(LS) 定取向钢片之机械性能及夹层系数; ?! S( r, U( i9 K
4 I! I2 _8 a: T( MMechanical Properties and Lamination Factors of SI-ORIENT-CORE-HI-B-LS; ?) k: y' P* D% p" g- D8 p W' H7 K 晶粒取向电器用硅(硅)钢片-高硼(HI-B)定取向 芯钢片,定取向芯钢片及高硼低硫(LS)定取向芯钢片之厚度及阔度公差7 R& N4 E5 Q. Z ( z' p8 \1 W, `1 V, P Physical Tolerance of SI-ORIENT-CORE-HI-B, SI-ORIENT-CORE, & SI-CORE-HI-B-LS Grain& n8 i& b& L; w7 {; O) L Oriented Electrical Steel Sheets+ i4 z8 B, y7 c% O# |) ] 晶粒取向电器用硅(硅)钢片 – 高硼(HI-B)定取向 芯钢片,定取向芯钢片及高硼低硫(LS)定取向芯钢片之标准尺寸及包装 $ N" l% O- ^6 Q2 [; Q d. ?+ { / M8 ~ k9 B, B2 q9 k `4 E, oStandard Forms and Size of SI-ORIENT-CORE-HI-B,SI-CORE, & SI-ORIENT-CORE-HI-B-LS Grain-$ |) }' B$ J! [5 R* y* _" G$ u Oriented Electrical Steel Sheets + s+ Z. H6 ~9 X4 u" Y绝缘表面 Surface Insulation ! o- P9 ~, J8 j非晶粒取向电力用钢片的电力、磁力、机械性能 及夹层系数7 w( {+ q* b3 v& Q; {8 {4 C & z8 u3 U7 C. t Lamination Factors of Electrical, Magnetic & Mechanical Non-Grain Oriented Electrical% s" N" B. a# I 电器及家电外壳用镀层冷辘 [低碳] 钢片 9 F# Y. {% \, i; }Coated (Low Carbon) Steel Sheets for Casing,Electricals & Home Appliances$ |" R# \. X5 S0 E9 P 镀铝硅钢片 Aluminized Silicon Alloy Steel Sheet ) Z8 x! D6 I3 C简介 General 8 q3 K) ~0 D3 W" G2 D Z1 S镀铝硅合金钢片的特色 ; U2 V" o0 X5 U- ]; _Feature of Aluminized Silicon Alloy Steel Sheet 4 l7 a- l3 H! S; W7 O6 K. Y* \/ J用途2 |9 _' x/ H# D0 W. m) ? End Usages# d1 M2 @$ Z3 q3 g$ d& B g. M 抗化学品能力 1 Y& T- Z) t) z% gChemical Resistance9 F* E1 R. w) e8 b k3 N7 `* v 镀铝(硅)钢片 – 日工标准(JIS G3314) - I- _- [9 A; t& n0 @Hot-aluminum-coated sheets and coils to JIS G 3314* c) ~- p- A$ q, q% g7 Y: [ 镀铝(硅)钢片 – 美材试标准(ASTM A-463-77)35.7 JIS G3314镀热浸铝片的机械性能+ ?: d% _: ?1 c5 @7 ?/ ~# t " |. D& i& l9 }2 C) y Mechanical Properties of JIS G 3314 Hot-Dip Aluminum-coated Sheets and Coils 4 Q y2 n" n: ~4 |; q公差 Size Tolerance# ~/ }$ L5 }! a3 x$ v2 G1 X 镀铝(硅)钢片及其它种类钢片的抗腐蚀性能比较7 n9 P/ J. u' M" P, |" U Comparsion of various resistance of aluminized steel & other kinds of steel0 {: O- z: E- W$ x& M- E 镀铝(硅)钢片生产流程7 ? ]& m5 [) _4 G! a( t Aluminum Steel Sheet, Production Flow Chart 9 L, Y0 i8 Q0 f$ S2 G( Q: }0 q焊接能力 Weldability * H" F, b. z; b: e* R, _/ D, M镀铝钢片的焊接状态(比较冷辘钢片) & }+ [* B5 W6 p* }$ d0 n: Y e6 FTips on welding of Aluminized sheet in comparasion with cold rolled steel strip1 J' h: f0 p# K0 I5 R7 q: s7 c8 U 钢板 / ?( }4 X8 h; `. VSteel Plate0 Y( z2 w$ p7 F# L; | 钢板用途分类及各国钢板的工业标准包括日工标准及美材试标准 ) I- Q8 m* Q& A! U9 xType of steel Plate & Related JIS, ASTM and Other Major Industrial Standards 8 B5 R8 ?2 D7 w9 ]7 ~5 R# s# @钢板生产流程 4 {. i3 v. x7 ]& X# fProduction Flow Chart 8 a) N4 b$ b, |9 ?9 d9 i钢板订货需知 & _- @1 S0 y- I0 Q6 bOrdering of Steel Plate 1 u/ w2 C8 O j2 y$ F+ d( R/ {不锈钢 ' `/ A- {2 v8 \/ Z( ~" {3 \Stainless Steel$ H. l3 H# d8 D. K) E5 `/ R 不锈钢的定义 Definition of Stainless Steel0 X( T% `- j$ T- u+ U5 s 不锈钢之分类,耐腐蚀性及耐热性8 G+ o) R9 N- x5 W Classification, Corrosion Resistant & Heat Resistance of Stainless Steel ) W2 n6 |3 ~+ D# y ]) _铁铬系不锈钢片 5 V) {5 d+ A; n. d0 K* S: F) ^% OChrome Stainless Steel" k `/ A) @( Q 马氏体不锈钢* D+ c7 P3 o) m6 ], p. r+ a9 ^+ i Martensite Stainless Steel2 k( _9 J1 s: i* V9 s2 T 低碳马氏体不锈钢 % v2 r( y1 ~! H( Y; Z; rLow Carbon Martensite Stainless Steel 4 ?/ J4 [& z9 ^; p含铁体不锈钢 4 r% w* b5 Z: M6 ZFerrite Stainless Steel/ }! K: v9 F! b5 a7 ?0 j- y 镍铬系不锈钢 4 D+ D, x5 F# `2 k# h, x9 t% L/ QNickel Chrome Stainless Steel2 S: J; l1 S1 Y) s/ D( X$ Q7 C+ s! | 释出硬化不锈钢; I+ |' J7 h+ ]% [ Precipitation Hardening Stainless Steel + M+ Y5 b4 x" O! b铁锰铝不锈钢 $ ?2 c/ G) |7 Q' `$ n! IFe / Mn / Al / Stainless Steel 3 D' A# E* R: R8 ?9 f不锈钢的磁性' c6 y# I* x7 ? W) S$ E4 M D Magnetic Property & Stainless Steel # B3 b5 ]1 u4 j, x. f6 b不锈钢箔、卷片、片及板之厚度分类7 E. i5 Q* |, h) E Classification of Foil, Strip, Sheet & Plate by Thickness5 I+ x5 {3 b+ H* G6 g3 J, i+ w 表面保护胶纸 ! A( K' f/ Y9 uSurface protection film 1 N; k+ W; @) k& E3 N: K3 l不锈钢片材常用代号 * [; C1 R2 j8 B' y1 nDesignation of SUS Steel Special Use Stainless, X& @! c* J* p- v e5 P% P 表面处理 Surface finish ) _, b+ W1 i6 \/ V$ ?$ w1 J薄卷片及薄片(0.3至2.9mm厚之片)机械性能4 T- {6 |* m& f Mechanical Properties of Thin Stainless Steel(Thickness from 0.3mm to 2.9mm) – strip/sheet E; F- j0 u/ z7 D, ^) Q不锈钢片机械性能(301, 304, 631, CSP), n9 N9 R7 b2 K& e0 Q( v! c Mechanical Properties of Spring use Stainless Steel : F* Q! g/ H# f: Y, m5 m* E不锈钢 – 种类,工业标准,化学成份,特点及 主要用途. t# n. O; x6 F" Q, z1 p* w7 O 7 i, |# t+ ?% N1 v- @1 R4 w Stainless Steel – Type, Industrial Standard, Chemical Composition, Characteristic & end usage of the most commonly used Stainless Steel ) H! Q; q) V1 l- ^9 x; I不锈钢薄片用途例 8 z+ j4 U+ s! M3 L4 G( sEnd Usage of Thinner Gauge9 A0 V) X S- E0 i" C1 Z t 不锈钢片、板用途例: ^' R% ]+ i! W7 T# T; e. v* w Examples of End Usages of Strip, Sheet & Plate ) |5 L, m) q( c不锈钢应力退火卷片常用规格名词图解8 h" h; a$ B4 z& [% ~! p/ } General Specification of Tension Annealed Stainless Steel Strips% t. S4 K: u+ e5 P7 t, q# Q& n2 J 耐热不锈钢 2 ]: \; k" w# Z+ LHeat-Resistance Stainless Steel + D+ Z' j+ Y0 m4 o镍铬系耐热不锈钢特性、化学成份、及操作温度 4 u7 I# \& c: QHeat-Resistance Stainless Steel/ S$ g6 c* m9 Y 铬系耐热钢 % \1 C. ^& j8 l3 T: o1 jChrome Heat Resistance Steel + d d; B! D9 X$ H8 n4 W- ]镍铬耐热钢 , q' ~! ~6 ^. Q2 v0 |* k: g* VNi - Cr Heat Resistance Steel 7 { n: ~& z; b( N( ?0 W超耐热钢4 E* _2 \0 J' c1 |* H2 X Special Heat Resistance Steel5 W& A! Q& ~+ |1 s* K, i/ {; I 抗热超级合金 & h! O& ?& B8 O; g; H: Y0 bHeat Resistance Super Alloy $ P8 @* [* L& ~2 [0 i! {耐热不锈钢比重表& _( f% \+ H7 l8 y( Y& Z Specific Gravity of Heat – resistance steel plates and sheets stainless steel& I6 S6 U6 k( t3 O, N 不锈钢材及耐热钢材标准对照表 / a7 S$ L0 l* l$ B/ U' gStainless and Heat-Resisting Steels+ A; \+ ?9 e, u: l. \ 发条片 Power Spring Strip 9 c3 c' D9 \; w发条的分类及材料 ' Y0 c# `, Z" H( J. ~Power Spring Strip Classification and Materials % W6 ^1 Q, g2 @+ v& J上链发条 Wind-up Spring2 q" J! b1 V5 H( |6 y' g 倒后擦发条 Pull Back Power Spring) _3 e$ \. P9 v0 N5 H$ {* a 圆面("卜竹")发条 Convex Spring Strip% `- _1 {# d) n, i 拉尺发条 Measure Tape ! F2 d1 j2 `" D+ M* j魔术手环 Magic Tape) z0 w" ]$ a+ h' {7 N* ^) d 魔术手环尺寸图Drawing of Magic Tap2 }- }$ ~* h5 Y n2 \9 { 定型发条 Constant Torque Spring " t; t0 a2 @3 ~1 D1 m9 S定型发条及上炼发条的驱动力 6 d; D' C" \( [# A: GSpring Force of Constant Torque Spring and Wing-up Spring ( ~! _* W+ r; d! D, B, j定型发条的形状及翻动过程3 ]/ p% ?$ p5 y2 z; T Shape and Spring Back of Constant Torque Spring# \4 @% y+ o6 A8 _ 定型发条驱动力公式及代号4 M- e& @0 u. s1 @5 a7 c2 k The Formula and Symbol of Constant Torque Spring1 G- j* _+ X8 z$ L) s 边缘处理 Edge Finish 0 k3 L/ B. K3 K2 j6 x$ {硬度 Hardness 4 v/ i. N7 X9 L1 ?( i高碳钢化学成份及用途* W, {% G$ q# w9 { High Carbon Tool Steel, Chemical Composition and Usage ! N5 P# l- l/ n/ {7 G- {每公斤发条的长度简易公式& a& g2 Z/ j3 L- P. T+ u3 z' z The Length of 1 Kg of Spring Steel Strip2 C2 V1 f* l$ U4 V: C0 H SK-5 & AISI-301 每公斤长的重量/公斤(阔100-200公厘) Weight per one meter long (kg) (Width 100-200mm) & w9 R) K8 m _$ U- h: B0 JSK-5 & AISI-301 每公斤之长度(阔100-200公厘) Length per one kg (Width 100-200mm) / H8 Q0 A& F9 BSK-5 & AISI-301 每公尺长的重量/公斤(阔2.0-10公厘)" A2 [; T0 [% K+ [ Weight per one meter long (kg) (Width 2.0-10mm) * D, Q" J% b- j% `: h( K- f6 T5 iSK-5 & AISI-301 每公斤之长度(阔2.0-10公厘) ( w: c$ `/ w a8 `0 \Length per one kg (Width 2.0-10mm) 2 z2 l: C$ D, e+ `8 i高碳钢片 High Carbon Steel Strip + ? k& {5 ^- w J7 `5 B* Y5 y分类7 I3 k: Q( Z" Y5 }) M Classification* n- h# I+ y+ L' x( w 用组织结构分类$ g" ]" J$ s4 l4 O/ y Classification According to Grain Structure; N0 d$ i2 r0 @3 F 用含碳量分类 – 即低碳钢、中碳钢及高碳钢8 d" P) i. [( |: |: @5 p Classification According to Carbon Contains4 O% T8 u% Y; K0 C- G; D$ _" ? 弹簧用碳钢片 c! z1 c& A: Y! }. o* nCarbonSteel Strip For Spring Use; V- p) q; W* k 冷轧状态 Cold Rolled Strip, p0 K9 t: x1 \9 o+ K 回火状态 Annealed Strip |