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A928 S32750 SAF2550 Electric duplex steel pipe
Duplex steel pipe are used for heat exchangers and cold drencher and devices for oil refining, chemical fertilizer, paper making, petroleum, OEM, etc.
- Product Details
A928 S32750 SAF2550 Electric duplex steel pipe
Duplex stainless steel pipe applicationed in :
It is used for heat exchangers and cold drencher and devices for oil refining, chemical fertilizer, paper making, petroleum, OEM, etc.
duplex stainless steel mainly represents the brand name
DSS can be generally divided into four categories
Low alloy - representative brand: UNS S32304 (23cr-4ni-0.1n)
Medium alloy - representative plate no. : UNS S31803 (22cr-5ni-3mo-0.1 N)
High alloy type - representative label: UNS S32550 (22cr-6ni-3mo-2cu-0.2n)
Super duplex stainless steel - standard plate: UNS S32750 (25cr-7ni-3.7 mo-0.3 N)
Low alloy UNS S32304 does not contain molybdenum and can replace AISI304 or 316 in stress corrosion resistance.
Medium alloy: the corrosion resistance of UNS S31803 is between AISI316L and 6%Mo+N austenitic stainless steel.
1． s32750 duplex steel pipe chemical composition（%）
|
steel grade |
C≤ |
Mn≤ |
Si≤ |
S≤ |
P≤ |
Cr≤ |
Ni |
Mo |
Cu≤ |
N |
|
S32750（SAF2507） 00Cr25Ni7Mo4N |
0.03 |
1.20 |
0.8 |
0.020 |
0.035 |
24.0/26.0 |
6.0/8.0 |
3.0/5.0 |
0.50 |
0.24/0.32 |
|
S3180.(SAF2507) 00Cr22Ni5Mo3N |
0.03 |
2.00 |
1.0 |
0.020 |
0.030 |
21.0/23.0 |
4.50/6.50 |
2.50/3.50 |
0.08/0.20 |
|
|
S31500(3RE60) 00Cr18Ni5Mo3Siz |
0.03 |
1.2/2.00 |
1.4/2.00 |
0.030 |
0.030 |
18.0/19.0 |
4.25/5.25 |
2.50/3.00 |
0.05/ |
2、S32750 duplex steel pipe mechanical property
|
steel grade |
σb(Mpa)≥ |
σs(Mpa≥) |
δ% ≥ |
hardness |
|
| BH Brinell Hardness | Rockwell Brinell Vickers | ||||
|
S32750（SAF2507） 00Cr25Ni7Mo4N |
800 |
550 |
15 |
310 |
32 |
|
S3180.(SAF2507) 00Cr22Ni5Mo3N |
620 |
450 |
25 |
290 |
30.5 |
|
S31500(3RE60) 00Cr18Ni5Mo3Siz |
630 |
440 |
30 |
290 |
30.5 |
Seamless Stainless steel pipe &tubes specification / dimensions / size / standard / steel grade / material
Nominal Dia: 1/2 "to 32" NB for seamless pipe
Schedules: 5S, 10S, 40S, 80S, 10, 20, 30...120, 140, 160, XXS
All dimensions are in accordance with ANSI B36.19 and ANSI B36.10
Size Range for tubing: OD:1/4" (6.25mm) to 8" (203mm), WT 0.02" (0.5mm) to 0.5"(12mm)
Length:30 m(Max) or as your requirement
Process: Cold drawn, Cold rolled, Precision Rolled for Seamless Pipe or Tube
Finish: Annealed & pickled, bright annealing, polished
Ends: Beveled or plain end, square cut, burr free ,Plastic Cap at Both end
Product show and packing:
