и,ְָи,ְи,и,и,и,ְ,ְ ͷߣ15637584700

Q345GJحQ345GJZ25CحQ345GJZ35DحQ345B-Z15حQ345D-Z25حSM490B-Z25ح

ߣTEL15637584700    Դwww.gbqgw.com    ʱ䣺2016-03-05 16:41    

Q345GJ Q345GJZ25C Q345GJZ35D Q345B-Z15 Q345D-Z25 SM490B-Z25A572Gr50 

1׼ƶĿĺ

ṹøְ壬дȸߡԺáǿȲΧСǿȺЧӦСŵ㣬߲㽨ҪҴƹƷ

ǰ˳ݡи߲㽨ҪĿԽǿȼߵĽṹְ壬Ӧı׼ȥ͹淶гί׼GB/T19879-2005ṹøְ塷 200621գƶҹ߲㽨øֵķչ淶ڽṹøְ߲ƷʹƷﵽֲͬĵˮƽƶƷṹͬʱõع淶г߽İȫܡ

ֽṹ50ŷԽԡɫʩЧʸߡռʸߵȶ෽ƣѳΪϽṹķչҹ꽨һֽṹֲ1996ǰڣѴģʵ˹ֽṹİȫԷdzҪøֲļҪYB4104-2000ǷǵЧJIS G 3136ṹø֡׼ƶģȷΪֽṹṩʸֲġٽṹøֹ淢˻ãйشĴáġϺֶĵش󹤳Ⱥøñ׼ƺͽֽṹYB4104-2000еĸְǿȼΪ345MPaǿ490 MPaѿǿ590 MPa780MPaĸǿȵĽøְ֣иҹֽṹĿǰҲѶ390MPa420MPa460MPaҲ˼ΪƶӦṹ߲㻯ʹȷչĸǿȸֲIJƷ׼Լṹͽɱ͸ֽṹòĵĺȡɿԡ

 

2 ׼οҪ

׼ǵЧձ׼JIS G3136—1994ṹøֲġJIS G3136ձݽֽṹԿֲĵļҪصоƶһרñ׼׼ڼҪͼĿ˼·˸ձ׼Ĺ涨ҹṹøְļչGB700-88̼ؽṹ֡GB/T1591-94ͺϽǿȽṹ֡GB/T5313-85ȷְܸ塷Ȼͨñ׼Эһ£ϵͳһҡͬʱֿǵʹòŵҪرǽ˽貿ı׼JGJ99-98߲ýֽṹ̡˸ֽṹ淶Ĺ涨

 

        ׼Ҫ

3.1÷Χƺ

׼߲㽨ҪṹĺȲ100mmĸְ壬ְȷΧձ׼һ£гľ󲿷

׼еƺŷΪ235MPa345 MPa390 MPa420 MPa460 MPaǿȼ𣬸ǿȼΪZͷZ֣ZZ15Z25Z35ȼƺְͬҪȼƺžõĺܡJIS G3136ȣ׼ٹ涨;һķǺӽṹƺšGB/T221ƷƺűʾĹ涨͹̽ṹ̼ظֺ͵ͺϽǿȸֵıʾǽṹøֵԣͻ߲㽨ʱƺɴܽṹøֺĺƴĸְֵɡںȷְܸ壬ȼźϺȷܼQ345GJCZ25QGJֱΪ㡢߲㡢λƴĸ345ΪֵλMPa Z25ΪȷܼCΪȼӦ0¶ȡ

 

3.2ߴ硢Ρƫ

3.2.1ְijߴ硢ΡƫGB/T709Ĺ涨

3.2.2Ϊӱ׼ԣ޶ûҪֱ׼ɶԭ򣬱׼涨˫Э飬ɹӦߴ硢ƫĸְ塣

 

3.3״̬

ݸְѧҪʵʣ׼Ըְ涨ơ+ػ𡢴+ػ¶—αƵȽ״̬״̬ɹ˫̶¶—αƽ״̬һΪֺʹٽʽӹ졣չ׼Ķ壬¶—αǸְ¶ȺͺȵĽͶܵϸƵһַڹ涨¶ɵģ涨¶Ƚӽڻȫɵ¶ȣ΢֯ѧܲȴá״̬ΪTMCPTMձ׼JIS G3136Ҳ涨иý״̬

 

3.4ѧɷ

3.4.1Ϊ߸ְۺܣ֤ṹҪ׼ԸֵĴϸҪ󣬴󽵵кԪPSԪصĺZְ壬P0.020%SGB/T5313Ĺ涨ڷZְ壬P0.025%S0.015%Pֱձ׼JIS G3136ϡɷϲȡ̼̽ļʩᳫԸֽꡢ΢Ͻ𻯴ꡢĺGB/T1591Ĺ涨ѵĺݾȺǿҪ涨Ϊ0.01%--0.10%ж235MPaĸְ壬̼ձ׼JIS G3136½ձ׼Ϊ0.22%,׼ͳһΪ0.20%ͬʱ̺ʵʵʹֹ淶涨Ϊ1.20%ձ׼Ϊ1.40%

3.4.2ṹøְҪõĺܣΪ˱׼JIS G3136Ըְĺ̼ͺָҪ󣬼㹫ʽùʺѧṫʽ345MPaְ״̬µĺ̼Ҫձ׼ϣ345MPaϵǿȼֵ̼ͺָͬ״̬˹涨ְֱܹ֤ĺܡ

 

3.5ѧ

3.5.1ΪӦṹ߲㻯ʹȷչӦṹ345MPaϸǿȸֲĵ󣬴Ӷﵽṹͽɱٸֽṹòĵĺȡ߽ṹɿԵĿģǿȸְ壬ǿȸְ岹׼ǷdzҪġĿǰѿǿ590 MPa780MPaĸǿȵĽø֣1׼г󣬲ǵֽṹԸǿȼֵ󣬱JIS G3136YB4104390 MPa420 MPa460 MPaǿȼĿǿȺʰGB/T1591Ĺ涨

 

 590 MPa780MPaǿȽøѧܲ

 

ǿȼ

 mm

ǿ

MPa

ǿ

MPa

%

ǿ

AKV,

0,J

590 MPa

80

≥440

≥590

≥20

≤0.85

≥47

780 MPa

25--100

≥620

780--930

≥16

≤0.85

≥47

 

3.5.2ṹҪõĿԣΪ˸ְѧҪнϵ͵ǿȡ͵ǿȿʹϾõ345 MPaֲĵǿȲӦС1.20ӦǿȲ0.83ҪJIS G3136Ҳй涨ǿȵʽʾġ460MPaĿ֣ǿҲ涨Ϊ0.85׼ձ׼ϰߣ涨345 MPaǿȲ0.80390 MPa420 MPa460 MPaǿȼǿȲ0.85

׼ƺžǿȺЧӦС20 MPaص㣬JIS G 3136GB/T1591ĺЧӦԣϺ˸ֽṹҵԲϵǿȵȽGB/T1591ЧӦʽ14.5%߲ʣڸֽṹĽṹƣ߸ֽṹЧ档׼JIS G 3136GB/T1591Աȼ2ͱ3

3.5.3ǿȸְ㲨Χְ̫ƫϴ󣬵ܵʱͻᷢԽתƣܰĿ𻵳̶ȶΪ˱׼涨ޡ̽ṹøһ㶼涨ǿȷΧ涨㷶Χĺ,ҲǽṹøְҪϵһͻص㡣ձ׼JIS G3136㲨Χ涨Ϊ120MPa׼Ҫ󣬽ΧС110MPa

3.5.4ֽṹӺDzȴھֲ죬γɸԼʱذIJ״˺ѡJGJ99-98涨ְĺȷܲСZ15ձ׼JIS G3136涨ְ岻СZ25𡣱׼GB/T5313涨ֺȷܼZ15Z25Z35ĸְƺţԱӦͬĽṹҪְиûѡʹúͺͬļǩ

3.5.5Ϊ֤ṹİȫṹøְҪ߱һijԣձ׼JIS G3136涨¶Ϊ0档׼GB700GB/T1591涨Q235GJQ345GJBCDEĸ𣬷ֱӦ¡0桢-20桢-40¶ȣQ390GJQ420GJQ460GJCDE𣬷ֱӦ0桢-20桢-40¶ȡ׼涨涨¶ıVͳС34Jձ׼еIJС27JĹ涨ߡ

3.5.6JGJ99-98Ҫ󣬱׼涨ṹøְҪ֤ϸ񡣿ǵյĽͲƷ֤ߣ׼ֹ涨ܱ֤ϸɲ顣ûҪ飬ںͬעǷɸݺͬҪ򹩷ȷ

 

3.6

׼бĹ涨ͬGB/T16270-1996ԴGB/T3274вԽǿص㡣ձ׼Ա涨Ϊ“кȱ”ڼ򵥣ҹִС

 

Q345GJ Q345GJZ25C Q345GJZ35D Q345B-Z15 Q345D-Z25 SM490B-Z25 A572Gr50 

 

2 ׼GB1591JIS G 3136ƺܶԱ

 

׼

ƺ


ȼ

ǿReN/mm2

ǿRmN/mm2

쳤A%

  AKVJ

  180°

 
d=ֱ
a=


ǿ

  ְ,mm

6-16

>16-
35

>35-
50

>50
100



С

ְ,mm


16

>16

 

׼

Q345GJ

B

 



≥345


345

455


335

445


325

435


490—
610


22


34


2a


3a


≤0.80

C

0

D

 

-20

E

-40

GB/T
15
91

Q345

C

≥345


325


295


275


470—
630


22

0


34


2a


3a

 Ҫ

D

-20

E

 

-40

27

JIS
G 31
36

SN490

B



 

325

445

6-<
12mm
≥325

>16-40mm
325--445

>40-
100mm
295

415


490—
610


ձ

17
21
23



0



27


Ҫ


Ҫ

 
0.80

C



 

 

Q345GJ Q345GJZ25C Q345GJZ35D Q345B-Z15 Q345D-Z25 SM490B-Z25 A572Gr50 

 

 345MPaǿȺЧӦ

 

 

Ӧ100mmʱǿȺЧӦֵ

YB4104

Q345GJ

GB/T1591

Q345

JIS G 3136\JIS G 3106

SN490     SM490

20MPa

70 MPa

30 MPa

ЧӦ

5.8%

20.3%

9.2%

 

3.7̽

׼ձ׼GB/T5313涨Zְ̽ˣ̽˱׼GB/T2970-91кְ峬鷽ϸ񼶱кͬעڷZְ壬׼涨ûҪҲɰGB/T2970̽ˡ

 

3.8⼼Ҫ

Ϊӱ׼ԣֱ׼ɶԭ򣬱׼ר⼼Ҫ涨˫Э飬ɶԸְбڻҪҪûҪͻܣҪ600ʱǿȲСڳµ2/3ȡ

 

4 Ӧ

ṹøְ׼ԲǿȡǿȲΧǿȺЧӦԡԡȷܵȷ涨˽ϸҪ˸ֽṹİȫҪӦҹֽṹøְѵõ㷺ϿɺӦá

1996꿪ʼģ߲㽨ṹøְ壬ṹøְĿۼƴ12֣ǿȼﵽ460MPaʽṹøְڸ߲ʹȸֽṹù㷺ӦãƷֹȫƷˮƽ߻˸ֽṹҵĸ߶ȳޣָ߲㽨ṹøְҪӦ4

 

 ָ߲㽨ṹøְҪӦù

Q345GJ Q345GJZ25C Q345GJZ35D Q345B-Z15 Q345D-Z25 SM490B-Z25 A572Gr50 

 

ƺ

Ӧù

ʱ

Q345BQ345B-Z25

ɽ

1996

A572Gr50

1997

SM490BSM490B-Z25

ϺϢŦ

1998

SM490B

Q345D-Z25/Z35

Q345B-Z25

Źʻչ

1998--1999

Q345BQ345B-Z15

 

ɶŴááִ

2000

Q345D-Z25/Z35

ҴԺ

2002

Q345CQ345C-Z15

Ϻï㳡

2002

Q345B

Q345GJZ35D

 

ڻչ

2002--2003

Q345GJC

Q345GJ

Q345GJZ25D

Q345GJZ35D

 

Ϻֶ

йش

̩

Ļ

\ӾݵȰ˳

̨

2003--2005

 

 

ֽGB/T19879-2005ṹøְ塷4޸ģ

 Q345GJ Q345GJZ25C Q345GJZ35D Q345B-Z15 Q345D-Z25 SM490B-Z25 A572Gr50

 ޸ǰǿ ReHMpa  ޸ǰǿ ReHMpa

 ְȣmm  ְȣmm

ƺ

  

6-16  16-35  35-50  6-16  16-35  35-50

  50-100  50-100

B

C

Q235GJ  ≥235  235-345  225-335  215-325  ≥235  235-355  225-345  215-355

D

E

B

C

Q345GJ  ≥345  345-455  335-445  325-435  ≥345  345-465  335-455  325-445

D

E

C

Q390GJ  D  ≥390  390-500  380-490  370-480  ≥390  390-510  380-500  370-390

E

ӣ ι˾ ϲ޹˾ ΢ ˲   

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