12 cr2mowv tib alloy seamless steel pipe

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12Cr2MoWVTiB alloy seamless steel pipe GangYan102 (12Cr2MoWVTiB) is a low-Hop Jinbei Shi Body heat-resistant steel, mainly tungsten and molybdenum composite solid solution strengthening, vanadium and titanium composite dispersion strengthening and hardening of trace boron, with excellent conditions of less than 600 ° C the steel mechanical properties, oxidation resistance and organizational stability. 12Cr2MoWVTiB alloy seamless steel pipe Tag: 12Cr2MoWVTiB, Boiler steel pipe, Alloy steel tube, GB5310- 2008, High Pressure Boiler Seamless Steel Pipe, 12Cr2MoWVTiB alloy seamless steel pipe, alloy steel pipe, seamless alloy pipe 主要特性在使用状态下以铁素体组织为主的合金钢管。含铬量在11%~30%，具有体心立方晶体结构。这类钢一般不含镍，有时还含有少量的Mo、Ti、Nb等到元素，这类钢具导热系数大，膨胀系数小、抗氧化性好、抗应力腐蚀优良等特点，多用于制造耐大气、水蒸气、水及氧化性酸腐蚀的零部件。这类合金钢管存在塑性差、焊后塑性和耐蚀性明显降低等缺点，因而限制了它的应用。炉外精炼技术（AOD或VOD）的应用可使碳、氮等间隙元素大大降低，因此使这类钢获得广泛应用。

怎样焊接12Cr2MoWVTiB钢管 12Cr2MoWVTiB钢也叫钢102。其焊接性能良好，可采用全氩弧焊或氩弧焊打底、电焊盖面的工艺方法进行焊接，其焊接工艺要点如下： (1)焊接材料选择。氩弧焊打底时，选用国产TIG-R34氩弧焊丝，直径φ2.5mm。氩气纯度要求在99.95%以上，打底层厚度2.5-3mm。电焊盖面时选用E5515-B3-VWB焊条，使用前烘干，温度350~400℃保温2h。 (2)焊前预热。102钢焊前需预热250 - 300℃，小径管可不预热。
Application Hot strength of steels at 620 ° C is better, even up to the level of some chromium-nickel austenitic steels, but the oxidation resistance of a sharp decline in its 3000h unit area weight of 242g / m2, the corrosion rate of 0 in recent years, the information is. 15mm / year maximum recommended use temperature has been reduced from 620 ° C to 600 ° C.
Available Sizes  O.D.: from 3/4 to 20 inch  W.T.: 0.102 to 4inch (2.6 to 100 mm)  Length: max 16000mm
Marking:
Pipes are supplied with marking according to standard and customer request.
Marking is paint on the ends of pipes.
The same data, as well as additional information per customer’s request, is indicated on the bundle’s tags.
Delivery:
Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
Weight of bundle – up to 5000 kg upon request of customer.
Each bundle is furnished with three tags.

Chemical Compositions (%) of 12Cr2MoWVTiB Elements Data Carbon 0.08-0.15 Silicon 0.45-0.75 Manganese 0.45-0.65 Phosphorus(max) ≤0.030 Sulfur(max) ≤0.030 Chromium 1.60-2.10 Molybdenum 0.50-0.65 Cuprum(max) ≤0.20 Nickel(max) ≤0.30 Vanadium(max) 0.28-0.42 Aluminum Tungsten 0.30-0.55 Titanium 0.08-0.15
Mechanical Properties of 12Cr2MoWVTiB
Yield Strength (Mpa)
540-735
Tensile Strength (Mpa)
2345
Elongation (%)
18

The W.T. tolerance of 12Cr2MoWVTiB W.T.(S) Tolerance of W.T.
<3.5
+15%(+0.48mm min)
-10%(+0.32mm min)
3.5-20
+15%,-10%
>20
D<219
±10%
D≥219
+12.5%,-10%
Inspection and Test:
Chemical Composition Inspection
Mechanical Properties Test (Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test)
Surface and Dimension Test
No-destructive Test
Hydrostatic Test
Surface treatment:
Oil-dip, Varnish, passivation, phosphating, Shot Blasting. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
U-Bend tubes Our U-Bend Manufacturing Center allows us to increase efficiency and reduce lead times, while maintaining the world-class quality for which we are known. Sunny steel’s tubing and pipe are produced to dimensional tolerances and finish requirements of ASTM and ASME A179, A 249/SA 249, A 688/SA 688, and A 803/SA 803 specifications.

Check to see more information about U-bend pipes:
Packing
ASME SA556
Usage Feed water Heater Tubes Standard: ASME SA556
Read more: http://www.sunnysteel.com/blog/index.php/12cr2mowvtib-alloy-seamless-steel-pipe/ Relation information of steel:  Why seamless steel pipe? Some benefits of Seamless Steel Pipe  Seamless steel pipes for high temperature and pressure sevice  ASTM A335 Pipe Specifications, Seamless Ferritic Alloy Steel Pipe for High-Temperature Service  ASTM Standard of Steel pipes  Silicon-Manganese Steel, resulfurized and rephosphorized Carbon Steels  ASTM Standard for Boilers tube, Super heater tubes  ASTM standard for forgings  ASTM standard for steel castings  ASTM Standard of Structural Tubing  ASTM Standard of Steel pipes  ASTM standard for Welded fittings

Get in Touch If you are interested in our products or cooperating with us, even having a comment or a suggestion please contact us now, for more detailed information. Tel.: +8621 3378 0199 | E-mail:sales@sunnysteel.com
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12 cr2mowv tib alloy seamless steel pipe

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12 cr2mowv tib alloy seamless steel pipe