9CR. General purpose pipe manufactured to ASTM Specification 519. Similar to 4140 (which has a lower carbon level), 9CR has improved hardenability and is more commonly used in the higher strength >= 110ksi condition. Available in bar dimensions of 50.8 mm (2") to 762 mm (30") Length range up to 9.14 m (30')

常用钢号：9Cr、9CrV、9Cr2W、9Cr2Mo、 9Cr2MoV等。 采用一次或两次预热：防止工件加热时变形、开裂，减少脱碳。 淬火温度高：温度高→合金元素溶入奥氏体的数量多→淬火后马氏体的合金浓度高→高的红硬性。 采用分级淬火：减少工件变形并提高韧性。 目的：马氏体中析出弥散M2C和MC碳化物，产生二次硬化效应，消除残余奥氏体和内应力。 回火次数多一方面增强二次硬化效果；另一方面主要是为了降低残余奥氏体的含量，也间接提高了性能。 T12，其中T10用 …

Designated as UNS K91560, the T91/ P91 steel is a 9Cr-1Mo ferritic alloy steel with deliberate addition of vanadium and niobium, as well as controlled nitrogen content. It has outstanding heat-resistance and creep strength. It also has good resistance to corrosion, oxidation and fatigue rupture at elevated temperatures.

2023年2月3日 · Grade 9CR can withstand extreme temperatures and varying welding conditions with its higher chromium content than other alloy steel grades. It also has excellent machinability when using proper tools and safety procedures. Overall, Alloy Steel Grade 9CR proves to be a versatile choice for safe and effective industrial welding. Conclusion

2020年5月30日 · The graph bars on the material properties cards below compare ASTM A387 grade 91 class 2 to: wrought alloy steels in the same category (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

9Cr-1Mo-V-Cb-N With many yeas production experience, strict control 9Cr-1Mo-V-Cb-N chemical composition and 9Cr-1Mo-V-Cb-N mechanical properties. Production specification

This page is mainly introduced the 9Cr-1Mo-V-Cb-N Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 9Cr-1Mo-V-Cb-N,such as it is commonly used in bars, sheet,plates, steel coils, steel

Metals / CHROME / 9CR-1MO / :BAR Sort results by: Length Ascending Length Descending Width Ascending Width Descending Dia/Height Ascending Dia/Height Descending

2020年5月30日 · Among alloy steels, the composition of ASTM A387 grade 9 steel is notable for containing a comparatively high amount of chromium (Cr) and including vanadium (V). Chromium is used to improve corrosion resistance and most mechanical properties (particularly at …

9CR-1Mo is a martensitic steel that contains 9% Chromium and 1% Molybdenum that is commonly used in the hardened and tempered condition. 9CR-1MO is often referred to as a stainless steel but it does not meet the requirements of having a …