Wugang 13MnNiMoR, 13MnNiMo5-4, DIWA353 large thickness of the boiler steam Steel
Grade : 13MnNiMoNbR, 13MnNiMo5-4 (DIWA353, BHW35), 13MnNiMoR
Availability steel Size :8 -145 * 1500-3900 * 3000 * 18000
13MnNiMo5-4 is mainly used for 10-30 kilowatts or more units boiler drum roll production , Wuyang in the 1980s took on 145mm thick BHW35 (13MnNiMo5-4) boiler drum plate localization national research project . With the continuous improvement of production equipment Wugang and metallurgical process technology , with a large thickness of boiler drum 13MnNiMo5-4 steel production technology has matured. After 2000 , have developed a for the manufacture of 10-30 kilowatts or more dedicated drum boiler plate 13MnNiMo5-4 series of products, its thickness specifications are : 65,95,135,145 mm and so on. Wugang boiler drum plate technology expert review comments will be assessed : Wuyang Iron and Steel Co., Ltd. developed 13MnNiMo5-4 drum steel, its smelting , rolling, heat treatment process is reasonably practicable . 13MnNiMo5-4 steel through several large boiler plant performance evaluation , its chemical composition and mechanical properties to meet German VdTUV384, Di Lingen steel DH-E24-C (DIWA353) material specifications, and each boiler manufacturing plant boiler drum with steel technical requirements. Steel sheet has high strength and toughness characteristics , the manufacturing process to meet the boiler thermal cycling requirements, good weldability . Wuyang Iron and Steel Co., Ltd. developed 13MnNiMo5-4 -thick steel plate , fill the gap , reaches the level of the German Di Lingen steel products , it is recommended in the boiler industry to promote the use , the corresponding foreign brands : 13MnNiMo5-4, DIWA353.

13MnNiMoNbR 50 * 1720 * 4150 1 2.841 Wugang
13MnNiMoNbR 50 * 1970 * 3010 1 2.362 Wugang
13MnNiMoNbR 50 * 1710 * 4120 1 2.804 Wugang
13MnNiMoNbR 52 * 2610 * 2720 1 2.956 Wugang
13MnNiMoNbR 55 * 1630 * 2820 1 2.013 Wugang
13MnNiMoNbR 58 * 2120 * 4780 1 4.689 Wugang
13MnNiMo54 65 * 2870 * 3730 1 5.572 Wugang
13MnNiMoNbR 70 * 1020 * 2310 1 1.316 Wugang
13MnNiMoNbR 72 * 2020 * 3170 1 3.677 Wugang
13MnNiMoNbR 72 * 2210 * 2650 1 3.363 Wugang
13MnNiMoNbR 72 * 2020 * 2920 1 3.387 Wugang


Chemical and mechanical properties of elemental analysis

   Steel melting composition and product analysis Wt%
Standard composition C Si Mn P S Cr Mo Ni Nb Alt
Melting component ≤ 0.15 0.10 ~ 0.50 1.00 ~ 1.60 ≤ 0.020 ≤ 0.010 0.20 ~ 0.40 0.20 ~ 0.40 0.60 ~ 1.00 0.005 ~ 0.020 0.020 ~ 0.050
Product analysis ≤ 0.17 0.050 ~ 0.56 0.95 ~ 1.70 ≤ 0.025 ≤ 0.010 0.15 ~ 0.45 0.15 ~ 0.45 0.55 ~ 1.05 0.004 ~ 0.025 0.020 ~ 0.050


Mechanical properties of steel to meet the requirements of Table 2

Thickness
mm Re
(Mpa) Rm
(Mpa) A
(%) 0 ℃ Akv
(J) Cold
d = 3a 180
≤ 50 ≥ 400 570 ~ 740 ≥ 18 ≥ 31 intact
> 50 ~ 100 ≥ 390
> 100 ~ 125 ≥ 380
> 125 ~ 150 ≥ 375
Plate Dimension Tolerance : EN10029-1991
Surface quality : EN10163-2-1991
Inspection: Optional EN10160-1999, SeL072-77, JB4730.3-2005 standards prescribed inspection level .


Gas content of alloying elements and control

C Si Mn Ni Cr Mo Nb P S Cu [N] Σ [0] [H]
≤ 0.15 0.10 ~
1.00 ~ 0.50
0.60 to 1.60
1.00 0.20
0.40 0.20
0.40 0.005
0.005 ~ 0.015
0.002 to 0.010
0.04 to 0.004
0.08 43 ~
60ppm 10 ~
20ppm ≤ 2.0 ppm

Physical mechanical properties of steel

Size (mm) Tensile
Rp0.2
(Mpa) Rm
(MPa) A
(%) Rp0.2
(MPa) Rm
(MPa) A
(%) 0 ℃ Akv (J) Cold 180
d = 3a
65 410 ~ 550 600 ~ 71 520 ~ 25 440 ~ 480 580 ~ 650 20 ~ 26 170 ~ 280 intact
80 ~ 125 450 ~ 550 620 ~ 680 20 ~ 23 407 ~ 460 560 ~ 62 020 ~ 26 100 ~ 260
135 500 ~ 540 620 ~ 66 020 ~ 25 420 ~ 472 550 ~ 61 220 ~ 25 150 ~ 227
145 510 550 630 685 20.5 - 22 430 ~ 475 560 ~ 630 110 ~ 282 19 - 22 -