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GB/T18983-2003油淬火-回火彈簧鋼(三)

發(fā)布時間:2010/6/30

表6.靜態(tài)級、中疲勞級鋼絲力學(xué)性能

直徑范圍/mm?

抗拉強(qiáng)度/MPa?

斷面收縮率a/%≥?

FDC?

FDCr-A?

FDCrV-B?

FDSiMn?

FDCrSi?

TDC?

TDCr-A?

TDCrV-B?

TDSiMn?

TDCrSi?

FD?

TD?

0.50~0.80?

1800~2100?

1800~2100?

1900~2200?

1850~2100?

1850~2100?

-?

>0.80~1.00?

1800~2060?

1780~2080?

1860~2160?

1850~2100?

1850~2100?

-?

>1.00~1.30?

1800~2010?

1750~2010?

1850~2100?

1850~2100?

1850~2100?

45?

45?

>1.30~1.40?

1750~1950?

1750~1990?

1840~2070?

1850~2100?

1850~2100?

45?

45?

>1.40~1.60?

1740~1890?

1710~1950?

1820~2030?

1850~2100?

1850~2100?

45?

45?

>1.60~2.00?

1720~1890?

1710~1890?

1790~1970?

1820~2000?

1850~2100?

45?

45?

>2.00~2.50?

1670~1820?

1670~1830?

1750~1900?

1800~1950?

1970~2140?

45?

45?

>2.50~2.70?

1640~1790?

1660~1820?

1720~1870?

1780~1930?

1950~2120?

45?

45?

>2.70~3.00?

1620~1770?

1630~1780?

1700~1850?

1760~1910?

1930~2100?

45?

45?

>3.00~3.20?

1600~1750?

1610~1760?

1680~1830?

1740~1890?

1910~2080?

40?

45?

>3.20~3.50?

1580~1730?

1600~1750?

1660~1810?

1720~1870?

1900~2060?

40?

45?

>3.50~4.00?

1550~1700?

1560~1710?

1620~1770?

1710~1860?

1870~2030?

40?

45?

>4.00~4.20?

1540~1690?

1540~1690?

1610~1760?

1700~1850?

1860~2020?

40?

45?

>4.20~4.50?

1520~1670?

1520~1670?

1590~1740?

1690~1840?

1850~2000?

40?

45?

>4.50~4.70?

1510~1660?

1510~1660?

1580~1730?

1680~1830?

1840~1990?

40?

45?

>4.70~5.00?

1500~1650?

1500~1650?

1560~1710?

1670~1820?

1830~1980?

40?

45?

>5.00~5.60?

1470~1620?

1460~1610?

1540~1690?

1660~1810?

1800~1950?

35?

40?

>5.60~6.00?

1460~1610?

1440~1590?

1520~1670?

1650~1800?

1780~1930?

35?

40?

>6.00~6.50?

1440~1590?

1420~1570?

1510~1660?

1640~1790?

1760~1910?

35?

40?

>6.50~7.00?

1430~1580?

1400~1550?

1500~1650?

1630~1780?

1740~1890?

35?

40?

>7.00~8.00?

1400~1550?

1380~1530?

1480~1630?

1620~1770?

1710~1860?

35?

40?

>8.00~9.00?

1380~1530?

1370~1520?

1470~1620?

1610~1760?

1700~1850?

30?

35?

>9.00~10.00?

1360~1510?

1350~1500?

1450~1600?

1600~1750?

1660~1810?

30?

35?

>10.00~12.00?

1320~1470?

1320~1470?

1430~1580?

1580~1730?

1660~1810?

30?

-?

>12.00~14.00?

1280~1430?

1300~1450?

1420~1570?

1560~1710?

1620~1770?

30?

-?

>14.00~15.00?

1270~1420?

1290~1440?

1410~1560?

1550~1700?

1620~1770?

-?

>15.00~17.00?

1250~1400?

1270~1420?

1400~1550?

1540~1690?

1580~1730?

AFDSiMn和TDSiMn直徑≤5.00mm時,斷面收縮率應(yīng)≥35%;直徑>5.00mm~14.00mm時,斷面收縮率應(yīng)≥30%。?

 

 

 

 

 

 

 

 

 

 

 

 

 

7.4.2公稱直徑>1.00mm的鋼絲應(yīng)測量斷面收縮率。
7.4.3經(jīng)協(xié)議,鋼絲也可采用其他抗拉強(qiáng)度控制范圍。
7.4.4一盤或一軸內(nèi)鋼絲抗拉強(qiáng)度允許的波動范圍為:
  a) ?VD級鋼絲不應(yīng)超過50?Mpa;
  b) ?TD級鋼絲不應(yīng)超過60?Mpa;
  c) ?FD級鋼絲不應(yīng)超過70?Mpa;?