化工应用

在碳氢化合反应中发挥重要作用,从燃烧器到用于制造合成气的蒸汽重整器,为后续的化肥精炼工艺提供原料,为我们的植物和作物提供充足的养分。此类管材的另外一个应用是在低温条件下运行的制药设备。

 

从对我们的植物和庄稼种植提供的化肥,到护肤类和牙齿美白产品,化肥工业中有关尿素及铵的生产工艺是我们在生活中不可或缺的组成部分。

化肥生产过程中,会产生极易腐蚀的环境,例如在180°C~250°C,加上150个 大气压下生产的甲铵。

例如硝酸,硫酸,磷酸还有三聚氰胺的生产,对于传统不锈钢等级,如 304L/316L不锈钢制管的使用,需要更复杂的解决方案。

从冷凝器到冷却塔,潜伏在化工厂内的有多种不同类型的腐蚀环境。

Austenitic

MST designationAttributeNearest equivalent standardTypical chemical composition 1)DensityMin. mechanical prop. at RT
  UNSENJISCmaxCrNiMoCuothers  Rp0.2 Yield StrengthRm Tensile Strength
           g/cm3lb/in3MPaksiMPaksi
DMV 304Corrosion Resistant S304001.4301SUS 3040.0618.59.5   7.90.292053051575
DMV 304LCorrosion Resistant S304031.4306SUS 304L0.0319.011.07.90.291702548570
DMV 304LNCorrosion Resistant S304531.4311 0.0318.010.0   7.90.292053051575
DMV 321Corrosion Resistant S321001.4541SUS 3210.0818.510.5 5 x C < Ti < 0.67.90.291702548570
DMV 347Corrosion Resistant S347001.4550SUS 3470.0818.511.0  10 x C < Nb < 1.07.90.292053051575
DMV 316Corrosion Resistant S316001.4401SUS 3160.0617.011.52.258.00.292053051575
DMV 316LCorrosion Resistant S316031.4404 0.0317.012.02.25  8.00.291702548570
DMV 316LMoSCorrosion Resistant S316031.4435SUS 316L0.0317.012.52.758.00.291702548570
DMV 316LNCorrosion Resistant S316531.4429 0.0317.012.52.75 0.12 < N < 0.228.00.292053051575
DMV 316TiCorrosion Resistant S316351.45710.0817.011.52.258.00.292053051575
DMV 316LVMCorrosion Resistant S316731.4441 0.02517.514.02.8<0.10N<0.108.00.291902849071
DMV 317LCorrosion Resistant S317031.4438SUS 317L0.0318.014.53.58.00.292053051575
DMV 316LUGCorrosion Resistant S316031.4435 0.0217.013.54.5  8.00.291702548570
DMV 309Corrosion Resistant S309001.4828SUS 309 TB0.0725.014.07.90.292053051575
DMV 306SiCorrosion Resistant S306001.4361 0.01518.015.0  Si 47.90.292403554078
DMV 4439Corrosion Resistant (S31726)1.44390.0317.513.54.5N 0.168.00.292403555080
DMV 4335Corrosion Resistant S310021.4335 0.01525.020.5  N<0.107.90.292553754078
DMV 25.22.2Corrosion Resistant S310501.44660.0225.022.02.0N 0.127.90.292553754078
DMV 310SCorrosion Resistant S310081.4845 0.01525.021.0   7.90.292053051575
DMV 904Corrosion Resistant N089041.45390.0220.525.54.51.58.00.292153149071
DMV 926Corrosion Resistant N089261.4529 0.0220.025.06.50.8N 0.208.00.292954365094
DMV 954Corrosion Resistant S312541.45470.0220.018.06.2N 0.208.00.293104565595
DMV 304HHeat ResistantS304091.4948 0.08 2)18.59.5   7.90.292053051575
DMV 304HCuHeat Resistant1.49070.13 2)18.59.53.0N 0.10; Nb 0.57.90.292353459085
DMV 321HHeat ResistantS321091.4940 0.08 2)18.511.0  Ti > 4 x C < 0.67.90.291702548070
DMV 347HHeat ResistantS347091.49120.08 2)18.511.0Nb > 8 x C < 1.07.90.292053051575
DMV 347HFGHeat Resistant 1.4908 0.10 2)18.511.0  Ti+Nb > 8xC < 1.07.90.292053055080
DMV 310HHeat ResistantS310091.4845SUS 310 TB0.10 2)25.020.08.00.292053051575
DMV 310NHeat ResistantS310421.4952 0.10 2)25.020.0  N 0.20; Nb 0.408.00.292954365595
DMV 4841Heat Resistant1.48410.1025.020.5Si 2.08.00.292053051575

1) All figures in weight percentage. In case of order, the limits of the order specification will apply.
2) Minimum level of carbon content is mandatory.

Austenitic Ferritic

MST designationNearest equivalent standardTypical chemical composition 1)DensityMin. mechanical prop. at RT
 UNSENJISCmaxCrNiMoCuothers  Rp0.2 Yield StrengthRm Tensile Strength
          g/cm3lb/in3MPaksiMPaksi
DMV 18.5S315001.4424 0.0318.54.82.7 Si 1.7; N 0.17.80.284406463092
DMV 22.5S318031.44620.0322.05.53.0N 0.17 2)7.80.284506562090
DMV 25.7S31260  0.0325.06.53.00.5N 0.20; W 0.57.80.2845065690100
DMV 25.7CuS325501.45070.0325.07.03.51.5N 0.22 2)7.80.2855080760110
DMV 25.7NS327601.4501 0.0325.07.04.00.5N 0.25; W 0.5 2)7.80.2855080750109

1) All figures in weight percentage. In case of order, the limits of the order specification will apply.

2) Min PRE value controlled.

Nickel and Nickel Based Alloys

MST designationAttributeNearest equivalent standardTypical chemical composition 1)DensityMin. mechanical prop. at RT
  UNSENCmaxCrNiMoCuothers  Rp0.2 Yield StrengthRm Tensile Strength
          g/cm3lb/in3MPaksiMPaksi
DMV 200Pure NickelN022002.40660.0599.48.90.321031537955
DMV 201Pure NickelN022012.40680.02 99.4   8.90.32831234550
DMV 400Nickel-CopperN044002.43600.15 65.0 30.0Fe 2; Mn 1.58.80.321802645065
DMV 8020Corrosion Resistant N080202.46600.0220.034.02.53.5Nb + Ta8.10.292403555080
DMV 928Corrosion Resistant N080281.45630.0227.031.03.51.2N 0.108.00.292103150073
DMV 931Corrosion Resistant N080311.45620.01527.031.06.51.2N 0.208.10.292804165094
DMV 4692Corrosion Resistant N080342.46920.0127.035.06.51.5N 0.208.10.2931045750108
DMV 800LCorrosion Resistant (N08800)1.45580.02521.032.0Ti 0.30; Al 0.308.00.291802645065
DMV 800Corrosion Resistant N088001.48760.0821.032.0  Ti < 0.408.00.292103150073
DMV 825Corrosion Resistant N088252.48580.0322.042.03.02.0Ti 0.80; Al 0.108.10.291802653075
DMV 600LCorrosion Resistant N066002.48170.02516.076.0  Fe 88.40.301802655080
DMV 690Corrosion Resistant N066902.46420.0229.060.0Fe 98.20.292053058585
DMV 625Corrosion Resistant N06625 Gr.12.48560.02522.063.09.0 Nb 3.58.50.3141460827120
DMV G3Corrosion Resistant N069852.46190.01522.048.07.02.0Co;W8.30.302053058585
DMV C22Corrosion Resistant N060222.46020.0122.057.013.0 W8.70.3131045690100
DMV 59Corrosion Resistant N060592.46050.0123.059.016.0Al8.60.3134050690100
DMV C4Corrosion Resistant N064552.46100.0116.066.016.0 Ti8.60.3128041700102
DMV C276Corrosion Resistant N102762.48190.0116.057.016.0W8.40.3035051750109
DMV 800HHeat ResistantN088101.49580.10 2)21.032.0  (Al.Ti) 0.15 - 0.608.00.291702550073
DMV 811Heat ResistantN088111.49590.10 2)21.032.00.85 < Ti + Al < 1.208.00.291702550073
DMV AC66Heat ResistantS332241.48770.0627.032.0  Ce 0.07; Nb 0.88.00.291852750073
DMV 600HHeat ResistantN066002.48160.0716.076.0Fe 88.40.302403555080
DMV 625Heat ResistantN06625 Gr.22.48560.02522.063.09.0 Nb 3.58.40.3027640690100
DMV 601Heat ResistantN066012.48510.0823.062.0Al 1.2; Ti 0.38.10.292403560087
DMV 617Heat ResistantN066172.46630.0822.055.09.0 Co 12; Al; Ti8.40.3030044700102
DMV C263Heat ResistantN072632.46500.0820.052.05.8Co 20;Ti 2.1,Al 0.5;Mn <0.68.40.35851181004145
DMV 718Corrosion Resistant N077182.46680.0819.052.53.0Nb 5.1;Mn 0.35;Ti 0.8;Al 0.58.20.2910351501276185

1) All figures in weight percentage. In case of order, the limits of the order specification will apply.
2) Minimum level of carbon content is mandatory.

应用的产品包括:

汽提器

氨基甲酸冷凝器

管材:U型管或是直管,最长长度为43米(110英尺)长

Bimetallic Tubes

双层管是用来解决有关尿素汽提器所涉及到的最恶劣的环境。此类产品由外管 DMV 25.22.2 和内管壁的锆级702构成,我们研发的这项加工技术能确保双金属在冷加工过程中完美的粘合。

Bimetallic pipes and process pipework in typical dimensions up to 31 mm (1.22”) OD.