X25CrMnNiN25-9-7焊接性（1.4872）气态腐蚀能力
X25CrMnNiN25-9-7（1.4872）板，棒，管，钢带，线材，锻件，锻管，锻板，锻棒，圆棒，板材，薄板，无缝管，焊管，圆钢，丝材
X25CrMnNiN 25-9-7
牌号
欧标钢号
1.4872EN 10088-1-2005
对应标准
不锈钢第1部分:不锈钢的清单
Staehle Stainless steels.Part 1:List of stainless steels
归类
奥氏体不锈钢
性能
耐腐蚀
标签
耐热钢
密度7.8 g/cm3
珠光体钢- 合金元素主要为铬和钼，总含量不超过5%，具有优良的高温强度，500～600℃加工性能，成本低。广泛用于生产600℃以下的耐热零件，如锅炉钢管、汽轮机叶轮、轧辊、紧固件、高压容器、管道等。代表钢种有16Mo、15CrMo、12Cr1MoV、12Cr2MoWVTiB、10Cr2Mo1、25Cr2Mo1V、20Cr3MoWV。
马氏体钢——铬含量7～13%，具有优良的高温强度、抗氧化性和耐湿腐蚀性，但焊接性不好。4Cr9Si2、4Cr10Si2Mo用于制造内燃机的排气阀，也属于马氏体钢、
铁素体钢- 含有较多的铬、铝、硅，形成单相铁素体结构，具有优越的抗氧化性，耐高温气态腐蚀能力。但其高温强度较低，室温脆性较大，焊接性不好。钢种，如 1Cr13SiAl、1Cr25Si2。
X25CrMnNiN 25-9-7 化学元素成分含量(%)
物理性能
X25CrMnNiN25-9-7 对应不同标准
1EN 10088-1-2005 不锈钢 第1部分:不锈钢的清单X25CrMnNiN 25-9-7 1.4872
2DIN EN 10095-2018 耐热钢和镍合金X25CrMnNiN 25-9-7 1.4872
室温下的机械性能（最终热处理或 Q/T）
热成型温度/℃：1150～800
热处理温度/℃|软退火：750～800
热处理温度/℃|淬火：—
条件：退火
σb/MPa：550～750
σs≥/MPa：255
δ5≥（％）：25
X25CrMnNiN25-9-7 (1.4872) plate, bar, tube, steel strip, wire, forging, forged pipe, forged plate, forged bar, round bar, plate, thin plate, seamless pipe, welded pipe, round steel, wire
X25CrMnNiN 25-9-7
Brand
European standard steel grade
1.4872EN 10088-1-2005
Corresponding standards
Stainless steel Part 1: List of stainless steel
Staehle Stainless steels. Part 1:List of stainless steels
classification
austenitic stainless steel
performance
Corrosion resistance
label
Heat resistant steel
Density 7.8 g/cm3
Pearlitic steel alloy elements are mainly chromium and molybdenum, with the total content not exceeding 5%. It has excellent high temperature strength, 500-600 ℃ processability and low cost. It is widely used to produce heat-resistant parts below 600 ℃, such as boiler steel pipes, turbine impellers, rolls, fasteners, high pressure vessels, pipes, etc. Representative steel grades include 16Mo, 15CrMo, 12Cr1MoV, 12Cr2MoWVTiB, 10Cr2Mo1, 25Cr2Mo1V and 20Cr3MoWV.
Martensitic steel with chromium content of 7-13% has excellent high temperature strength, oxidation resistance and wet corrosion resistance, but poor weldability. 4Cr9Si2 and 4Cr10Si2Mo are used to manufacture exhaust valves for internal combustion engines, and also belong to martensitic steel
Ferritic steel - containing more chromium, aluminum and silicon, forming single-phase ferrite structure, with superior oxidation resistance and high temperature gas corrosion resistance. But its high temperature strength is low, room temperature brittleness is high, and its weldability is poor. Steel grades, such as 1Cr13SiAl and 1Cr25Si2.
X25CrMnNiN 25-9-7 chemical element content (%)
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physical property
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X25CrMnNiN25-9-7 corresponds to different standards
1EN 10088-1-2005 Stainless Steel Part 1: List of Stainless Steel X25CrMnNiN 25-9-7 1.4872
2DIN EN 10095-2018 Heat resistant steel and nickel alloy X25CrMnNiN 25-9-7 1.4872
Mechanical properties at room temperature (final heat treatment or Q/T)
Hot forming temperature/℃: 1150 ～ 800
Heat treatment temperature/℃ | Soft annealing: 750 ～ 800
Heat treatment temperature/℃ | Quenching: -
Condition: annealed
σ b/MPa：550～750
σ s≥/MPa：255
δ 5≥（％）：25
