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Super duplex round bar

Super duplex round bar

What is a super duplex round bar?

These products use SDSS material – a combination of austenitic and ferrite grades of stainless steel in equal proportions. A super duplex round bar contains chromium, nickel, and molybdenum in roughly 25%, 7%, and 4%. The higher percentages compared to duplex grades make a SDSS alloy rod exceptionally corrosion-resistant. Clients can procure these bars in grades s32750, s32760, etc.

SDSS bright bar manufacturer in India

What is a super duplex hex bar used for?

The coveted metallurgical properties make these components suitable for the power sector, oil and gas, fertilizer production, and chemical processing (particularly speciality chemicals). A SDSS bar works in nuclear power, marine and shipping sectors, offshore drilling, and pollutant cleaning. Thermal stability makes them good for heat-based applications like exchangers and condensers.


Specification of super duplex round bar

Super duplex bar specifications SDSS round bar size Super duplex steel annealed bar length
  • ASTM A182
  • ASTM A479
  • ASME SA182
  • ASME SA479
  • 6mm up to 50mm
  • 100 mm to 6000 mm
25cr super duplex square bar sizes Super duplex stainless steel polished bar density 25cr duplex steel bright bar temperature range
  • 3 mm to 500 mm
  • 7.8 g/cm3
  • -50°C to 300°C
Super duplex alloy rod common forms Type 25cr duplex cold drawn bar melting point SDSS rectangular bar surface finish
  • 1410 to 1460°C
  • 63 RA
  • 32 RA
  • 6 RA

We are super duplex rod supplier in Mumbai, we produce best quality of SDSS bar for marine industry

What are the benefits of using high quality super duplex rods in construction and industrial applications?

Using SDSS rounds in construction and industrial components like rotors and shafts offers durability and strength. They have a high tensile strength of 750n/mm2 – significantly higher than austenitic or ferritic stainless steels. A SDSS square bar and super duplex circle is tough but ductile and can undergo welding using routine techniques.

We are high quality super duplex rod manufacturer in India, contact us for detail information, We ship SDSS bars to Angola, Mauritius, Uganda, & Algeria within 7 to 10 days.

Types of SDSS rod


Super duplex steel square bar

Super duplex steel square bar

SDSS bright bar

SDSS bright bar

SS super duplex hot rolled bars

SS super duplex hot rolled bars

Super duplex forged bar

Super duplex forged bar

SDSS rectangular bar

SDSS rectangular bar

Super duplex shaft

Super duplex shaft

25cr duplex steel billet

25cr duplex steel billet

Super duplex alloy bloom

Super duplex alloy bloom

Type 25cr duplex polished bar

Type 25cr duplex polished bar

SS super duplex cold drawn bar

SS super duplex cold drawn bar

Stainless steel super duplex annealed bar

Stainless steel super duplex annealed bar

We take immense pride in our commitment to quality and supply super duplex SS annealed bar that have passed our Brinell hardness testing standards

What is the impact of heat treatment on the brinell hardness of a super duplex flat bar?

These bars can undergo heat treatment to increase the hardness for specific applications. An astm a 276 super duplex bright barhas a brinellhardness (hbn) of around 270. Procedures like annealing and solution quenching can target higher hardness levels. However, an sdss annealed barcan have reduced impact toughness. So,tempering usually follows to improve strength.

Chemical composition of SDSS bright bar


Grade C N P Si Mn Mo Ni Cr S Other
S32750/S32760 0.030 0.24/0.32 0.035 0.80 1.20 3.0/5.0 6.00/8.00 24.0/26.0 0.020 Cu:0.50
Our super duplex stainless steel bars and ASTM A 276 super duplex square bar are the best of the best, created for the Petrochemical industries' superior performance

What makes super duplex stainless steel bars the best choice for petrochemical industries?

These industries need resistance to pitting and stress corrosion cracking. Super duplex stainless steel bars and SDSS ring can guard against abrasive substances such as chlorides and sulfides in the petrochemical sector. a SDSS round bar also has good thermal conductivity and a low coefficient of expansion. It works for elevated and fluctuating temperatures in these applications.

Super duplex steel bar value added services


Super duplex steel bar value added services

Mechanical properties of super duplex forged bar


Grade Density Melting point Yield strength(0.2% offset) Tensile strength Elongation
S32750/S32760 7.8g/cm3 1350°C(2460°F) PSi-80000, MPa-550 PSi-116000, MPa-800 15%
We offer SDSS forged bar, in various range of sizes and lengths to meet any requirement and designed to meet the toughest demands for quality and performance

Which range of sizes and lengths is available for a super duplex square bar?

These bars generally get produced in lengths from 1000 to 6000mm. The diameters of super SDSS square bars can be up to 10mm. Manufacturers can usually make custom dimensions per client specifications.

Equivalent grade of super duplex square bar


STANDARD WERKSTOFF NR. UNS
Super duplex 1.4410 S32750/S32760

Stainless steel annealed bar physical properties


Density 7.8 g/cm3
Thermal expansion 30–100°C (86–212°F)
Thermal conductivity 31.5/μΩ. in, 80/μΩ cm
Modulus of elasticity 200 GPa
 

Applications of super duplex steel hot rolled bar


Super duplex steel hot rolled bar applications

Size chart of super duplex stainless steel rod


US Bar Metric Japanese ASTM
Bar size Diam. (inch) Bar size Diam. (mm) Bar size Diam. (mm) Bar size Diam. (mm)
#3 0.375 5.5 5.5 10 10 15M 200
#2 0.250 5 5 6 6 10M 100
#5 0.625 7 7 16 16 25M 500
#4 0.500 6 6 13 13 20M 300
#6 0.750 8 8 19 19 30M 700
#8 1.000 10 10 25 25 45M 1500
#7 0.875 9 9 22 22 35M 1000
#9 1.125 11 11 29 29 55M 2500
#11 1.375 14 14 35 35
#10 1.250 12 12 32 32
#12 1.500 16 16 38 38
#14 1.750 20 20 44 44
#13 1.625 18 18 41 41

SDSS bar sizes


SDSS bar sizes
 

Tolerance chart of 25cr duplex steel polished bar


DIA – MM ISO h11 ISO h7 ISO h9 ISO h6 ISO h8 ISO h10
3 < 6 0.075 0.012 0.03 0.008 0.018 0.048
1 < 3 0.06 0.01 0.025 0.006 0.014 0.04
6 < 10 0.09 0.015 0.036 0.009 0.022 0.058
10 < 18 0.11 0.018 0.043 0.011 0.027 0.07
18 < 30 0.13 0.021 0.052 0.013 0.033 0.084
30 < 50 0.16 0.025 0.062 0.016 0.039 0.1
80 < 120 0.22 0.035 0.087 0.022 0.054 0.14
50 < 80 0.19 0.03 0.074 0.019 0.046 0.12
180 < 250 0.29 0.115 0.072 0.185
250 < 275 0.32 0.13 0.081 0.21
120 < 180 0.25 0.1 0.063 0.16

Smooth turned: diameter

tolerance (H10) = all minus

Diameter (mm) 51 to 79 31 to 50 18 to 30
Tolerance (mm) 0 0 0

Rough turned: diameter

tolerance = all plus

Diameter (mm) 151 to 225 226 to 410 75 to 150
Tolerance (mm) 0 0 0

Bright drawn: diameter

tolerance (H9) = all minus(+0mm )

Diameter (mm) 19 to 30 11 to 18 6 to 10
Tolerance (mm) 0 0 0
 

Super duplex round bar price list


Dia (in) Weight per Length  Delivery Time  Rate Per Kgs(INR) Price in USD Price in Dirham (AED) CFR Charges in USD(Till any port)
metre (kg)
3mm 0.055 As Per Requirement Ready Stock  850 US $ 10.200 37.400 205
1/8" 0.062 854 US $ 10.248 37.596 208
5/32" 0.095 858 US $ 10.296 37.792 211
4mm 0.098 862 US $ 10.344 37.988 214
3/16" 0.141 866 US $ 10.392 38.184 217
5mm 0.154 870 US $ 10.440 38.380 220
7/32" 0.19 874 US $ 10.488 38.576 223
6mm 0.223 878 US $ 10.536 38.772 226
1/4" 0.249 882 US $ 10.584 38.968 229
7mm 0.298 886 US $ 10.632 39.164 232
5/16" 0.387 890 US $ 10.680 39.360 235
8mm 0.398 894 US $ 10.728 39.556 238
9mm 0.498 898 US $ 10.776 39.752 241
3/8" 0.557 902 US $ 10.824 39.948 244
10mm 0.62 906 US $ 10.872 40.144 247
11mm 0.748 910 US $ 10.920 40.340 250
7/16" 0.761 914 US $ 10.968 40.536 253
12mm 0.889 918 US $ 11.016 40.732 256
1/2" 0.994 922 US $ 11.064 40.928 259
13mm 1.043 926 US $ 11.112 41.124 262
14mm 1.207 930 US $ 11.160 41.320 265
9/16" 1.256 934 US $ 11.208 41.516 268
15mm 1.391 938 US $ 11.256 41.712 271
5/8" 1.551 942 US $ 11.304 41.908 274
16mm 1.578 946 US $ 11.352 42.104 277
17mm 1.791 950 US $ 11.400 42.300 280
11/16" 1.88 954 US $ 11.448 42.496 283
18mm 2.001 958 US $ 11.496 42.692 286
3/4" 2.237 962 US $ 11.544 42.888 289
20mm 2.47 966 US $ 11.592 43.084 292
22mm 2.979 970 US $ 11.640 43.280 295
7/8" 3.038 974 US $ 11.688 43.476 298
24mm 3.543 978 US $ 11.736 43.672 301
25mm 3.871 982 US $ 11.784 43.868 304
1" 3.97 986 US $ 11.832 44.064 307
26mm 4.17 990 US $ 11.880 44.260 310
27mm 4.49 994 US $ 11.928 44.456 313
1-1/8" 5.033 998 US $ 11.976 44.652 316
30mm 5.548 1002 US $ 12.024 44.848 319
1-1/4" 6.349 1006 US $ 12.072 45.044 322
32mm 6.314 1010 US $ 12.120 45.240 325
1-3/8" 7.55 1014 US $ 12.168 45.436 328
35mm 7.553 1018 US $ 12.216 45.632 331
36mm 7.999 1022 US $ 12.264 45.828 334
38mm 8.903 1026 US $ 12.312 46.024 337
1-1/2" 8.951 1030 US $ 12.360 46.220 340
40mm 9.872 1034 US $ 12.408 46.416 343
1-5/8" 10.449 1038 US $ 12.456 46.612 346
1-3/4" 12.179 1042 US $ 12.504 46.808 349
45mm 12.555 1046 US $ 12.552 47.004 352
1-7/8" 13.977 1050 US $ 12.600 47.200 355
48mm 14.205 1054 US $ 12.648 47.396 358
50mm 15.414 1058 US $ 12.696 47.592 361
2" 15.906 1062 US $ 12.744 47.788 364
2-1/8" 17.963 1066 US $ 12.792 47.984 367
2-1/4" 20.128 1070 US $ 12.840 48.180 370
60mm 22.205 1074 US $ 12.888 48.376 373
2-3/8" 22.435 1078 US $ 12.936 48.572 376
2-1/2" 24.856 1082 US $ 12.984 48.768 379
2-5/8" 27.409 1086 US $ 13.032 48.964 382
2-3/4" 30.083 1090 US $ 13.080 49.160 385
3" 36 1086 US $ 13.128 49.356 325
3 1/4" 42.9 1090 US $ 13.176 49.552 328
31/2" 49.8 1094 US $ 13.224 49.748 331
3 3/4" 57.1 1098 US $ 13.272 49.944 334
4" 65 1102 US $ 13.320 50.140 337
4 1/4" 73.4 1106 US $ 13.368 50.336 340
4 1/2" 82.3 1110 US $ 13.416 50.532 343
5" 102 1114 US $ 13.464 50.728 346
5 1/4" 111.98 1118 US $ 13.512 50.924 349
5 1/2" 123 1122 US $ 13.560 51.120 352
5 3/4" 134 1126 US $ 13.608 51.316 355
6" 146 1130 US $ 13.656 51.512 358
6 1/2" 172 1134 US $ 13.704 51.708 361
7" 199 1138 US $ 13.752 51.904 364
7 1/2" 229 1142 US $ 13.800 52.100 367
8" 260 1146 US $ 13.848 52.296 370
8 1/2" 294 1150 US $ 13.896 52.492 373
9" 329 1154 US $ 13.944 52.688 376
10" 406 1158 US $ 13.992 52.884 379
11" 492 1162 US $ 14.040 53.080 382
12" 585 1166 US $ 14.088 53.276 385
340mm 728 1170 US $ 14.04 51.48 370
16" 1040 1174 US $ 14.088 51.592 373