天津20G鍋爐管\直徑219x6mm3087無縫鋼管執(zhí)行標(biāo)準(zhǔn)
天津20G鍋爐管\直徑219x6mm3087無縫鋼管執(zhí)行標(biāo)準(zhǔn)————
4×4-5-6-8
|
152×4.5-6-8-12-14-16-18-20-25-30
|
450×10-12-14-16-20-25-34-40-50
|
36×3.5-5-6-8
|
159×4.5-6-10-12-14
|
480×10-12-14-16-18-20-25-30-40
|
38×4-5-6-7-8-9-10
|
159×16-18-20-22-25-30
|
500×10-12-14-16-20-25-34-40-50
|
39×3.5-5-8-10
|
168×8-10-12-14-20-25-30-35
|
510×10-12-14-16-20-25-34-40-50
|
42×3.5-4-5-6-7-8-9-10
|
180×8-12-16-25-30
|
530×10-12-14-16-18-20-30-40
|
45×3.5-4-5-6-7-8-9
|
180×32-34-38-40-45-50
|
560×10-14-16-20-25-30-40-50-60
|
48×3.5-4-5-6-7-8-9-10
|
194×6-8-12-16-20-25-30-40-45-50
|
580×10-14-16-20-30-40-50-70
|
51×3.5-4-5-6-7-8-9-10
|
203×6-7-10-15-20-25-30
|
600×10-14-18-25-20-30-50-60
|
56×3.5-4-5-6-7-8-9-10
|
203×32-36-40-45-50
|
610×10-14-18-25-20-30-50-60
|
57×3.5-5-6-7-8-9-10-12
|
219×6-8-12-16-18-20-25
|
620×14-20-30-35-45-50-60
|
準(zhǔn)
|
牌號
|
抗拉強度(MPa)
|
屈服強度(MPa)
|
伸長率(%)
|
硬度
|
GB3087
|
10
|
335~475
|
≥195
|
≥24
|
/
|
20
|
410~550
|
≥245
|
≥20
|
/
|
-
|
GB5310
|
20G
|
410~550
|
≥245
|
≥24
|
/
|
20MnG
|
≥415
|
≥240
|
≥22
|
/
|
-
|
25MnG
|
≥485
|
≥275
|
≥20
|
/
|
|
15CrMoG
|
440~640
|
≥235
|
≥21
|
/
|
|
12Cr2MoG
|
450~600
|
≥280
|
≥20
|
/
|
|
12Cr1MoVG
|
470~640
|
≥255
|
≥21
|
/
|
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