发明名称 |
WELD METALS WITH SUPERIOR LOW TEMPERATURE TOUGHNESS FOR JOINING HIGH STRENGTH, LOW ALLOY STEELS |
摘要 |
Weld metals suitable for joining high strength, low alloy steels are provided. These weld metals have microstructures of acicular ferrite (16') interspersed in a hard constituent (11'), such as lath martensite, yield strengths of at least about 690 MPa (100ksi), and DBTTs lower than about -50 DEG C (-58 DEG F) as measured by a Charpy energy versus temperature curve. These weld metals include about 0.04 wt% to about 0.08 wt% carbon; about 1.0 wt% to about 2.0 wt% manganese; about 0.2 wt% to about 0.7 wt% silicon; about 0.30 wt% to 0.80 wt% molybdenum; about 2.3 wt% to about 3.5 wt% nickel; about 0.0175 wt% to about 0.0400 wt% oxygen, and at least one additive selected from the group consisting of (i) up to about 0.04 wt% zirconium, and (ii) up to about 0.02 wt% titanium.
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申请公布号 |
WO0212581(A1) |
申请公布日期 |
2002.02.14 |
申请号 |
WO2001US24260 |
申请日期 |
2001.08.03 |
申请人 |
EXXONMOBIL UPSTREAM RESEARCH COMPANY |
发明人 |
FAIRCHILD, DOUGLAS, P.;KOO, JAYOUNG;BANGARU, NARASIMHA-RAO, V.;MACIA, MARIO, LUIS;BEESON, DANNY, L.;OZEKCIN, ADNAN |
分类号 |
B23K35/30;C22C38/02;C22C38/04;C22C38/08;C22C38/12;C22C38/42;C22C38/44;C22C38/48;C22C38/50;C22C38/58;(IPC1-7):C22C38/08;C22C38/14;B23K35/22;B23K9/00;B23K9/18 |
主分类号 |
B23K35/30 |
代理机构 |
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主权项 |
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地址 |
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