德国 · DIN

1.0488

DIN 17123:1997 — Welded circular fine grain steel tubes for structural steelwork; technical delivery conditions

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DIN EN 10216-3:2004压力钢 - 交货技术条件 - 第3部分：合金细晶粒钢管无缝钢管
DIN 17103:1989Weldable fine grain structural steel forgings; technical delivery conditions
DIN 17179:1986Seamless circular tubes of fine grain steels for special requirements; technical delivery conditions
DIN EN 10028-3:2009压力平板钢产品-第3部分:可焊接细晶粒钢，正火
DIN 17178:1986Welded circular tuber of fine grain steels for special requirements; technical delivery conditions
DIN EN 10217-3:2005承压焊接钢管 - 交货技术条件 - 第3部分：细粒合金钢管
DIN 17102:1983Weldable normalized fine grain structural steels;technical delivery conditions for plate,strip,wide flats,sections and bars.
SEW 081Mechanical-technological properties of grain-refined structural steels suitable for welding, normalized, according to DIN 17102 in the measurement range of > 100 mm <= 250 mm
DIN 17125:1997Square and rectangular fine grain steel tubes (hollow sections) for structural steelwork; technical delivery conditions
DIN 17123:1997Welded circular fine grain steel tubes for structural steelwork; technical delivery conditions
WB 352/2:2013Weldable fine grain steels with a minimum yield strength of 275 MPa;Seamless hollow body,seamless pipe
SEW 081-2:1998Mechanical properties of weldable fine grain steels normalized rolled in greater thicknesses up to 250mm - Part 2:Fine grain steels in accordance with DIN EN 10028-3 for pressure equipment.

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元素	min	max	相似	备注
Al	0.02		If nitrogen is additionally fixed by niobium	If nitrogen is additionally fixed by niobium
C		0.16
Cr		0.3
Cr+Cu+Mo		0.45
Cu		0.2
Mn	0.6	1.4
Mo		0.08
N		0.02
Nb		0.03
Nb+Ti+V		0.05
Ni		0.3
P		0.03
S		0.025
Si		0.4

热处理 / 状态	屈服强度	抗拉强度	伸长率	断面收缩率	冲击功	硬度
钢管正火 t <= 20 mm	≥285 Upper Yield Stress	390–510	≥24 Parallel to the tube axis		≥47 Charpy V Notch -20°C

冲击功 Kv/Ku (J)

热处理 / 状态	温度 ℃	min	备注
钢管正火 t <= 20 mm	-20	47	Charpy V Notch