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Home ProductsDuplex Stainless Steel Pipe

Super Duplex Stainless Steel Pipes

Super Duplex Stainless Steel Pipes

  • Super Duplex Stainless Steel Pipes
  • Super Duplex Stainless Steel Pipes
  • Super Duplex Stainless Steel Pipes
Super Duplex Stainless Steel Pipes
Product Details:
Place of Origin: China, USA, Korea, UE
Brand Name: YUHONG
Certification: ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Payment & Shipping Terms:
Minimum Order Quantity: 100KGS
Price: negotiable
Packaging Details: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time: 10days->
Payment Terms: T/T, L/C
Supply Ability: 1500 tons per month
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Detailed Product Description
High Light:

super duplex seamless pipe


welded steel pipe

Super Duplex Stainless Steel Pipe, A789/A790  S32205, S31803, S32750, S32760 , S32304,S31500


Super Duplex Stainless Steel Pipe / Tube , UNS S32304 / 1.4362 / X2 Cr Ni 23.4



Chemical Analysis
Typical values (Weight %)

C Cr Ni Mo N Others
0.020 23 4 0.2 0.1 S = 0.001
PREN (Cr%) + 3.3 (Mo%) = 16 (N%) ≥ 24



Mechanical Properties
Tensile Properties (Minimum Values)


°C Rp 0.2
Rp 1.0


400 440 600
100 330 365 570
200 280 310 530
300 230 260 490


°F YS 0.2%
YS 1.0%
68 58 64 87   25
212 48 53 83   25
392 41 45 77   20
572 33 38 71   20


Values obtained for hot rolled plates (th ≤ 2”). Alloy 2304 must not be used for a long time at temperatures higher than 300°C (572°F), where precipitation hardening phenomenon occurs.

Toughness Values (KCV Minimum Values)


Temp.   -50°C +20°C   -60°F +70°F
Single   75 J/cm 90 J/cm   54 ft.lbs 65 ft. lbs
Average (5)   90 J/cm 150 J/cm   65 ft.lbs 87 ft.lbs


Hardness (Typical Values)


Average (5) HV10 180-230 HB : 180-230 HRC _ 20



Specification:O.D.6-530mm W.T.0.5-40mm  L max 24000mm
ASTM/ASME:A213/SA213 A249/SA249 A268 A312/SA312 A269 A270 A358 A376 A409 A511 A688 A789 A790 A803 A928 

A544 A409 A632 A688 

A778 A908
SB161 SB163 SB167 SB338 SB407 SB423 SB444 SB619 SB622 SB626 SB668 SB677 SB829
JIS:G3459 G3446 G3447 G3448 G3459 G3463 G3468
DIN:17455 17456 17457 17458 17459 2391 2462
EN:10216-5 10217-7
GOST9941 GOST9940

Materials:304/304L/304H;321/321H;316/316L/316H;316TI;317L;347H;310S;UNS31803;UNS32750/U NS08904L,


Delivery condition: Normal annealing+Tempered;Brighting annealing;BK;Pickled;

Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags 

on each bundle, 

Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips;wooden case packing 

with steel frame;
Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), 

Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), 

Exterior Size Inspection.
Mill Test Certificate:EN 10204/3.1B

Classification Society Criterion:CSS,DNV,GL,LR,NK,KR,ABS,BV


Some of the quality tests carried out by us includes:

Corrosion Test Conducted only when specially requested by the client
Chemical Analysis Test done as per required quality standards
Destructive / Mechanical Testing Tensile | Hardness | Flattening | Flare | Flange
Reverse-bend and Re. flat tests Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end
Eddy Current Testing Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
Hydrostatic Testing 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s .
Air Under Pressure Test To check any evidence of air leakage
Visual Inspection After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections

Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:

  • Eddy Current Testing
  • O.P Testing
  • Radiography Testing
  • Corrosion Testing
  • Micro Testing
  • Macro Testing
  • IGC Testing
  • Ultrasonic testing
  • Liquid Penetrate testing


Contact Details
Yuhong Group Co.,Ltd

Contact Person: Jikin Cai

Tel: +86-13819835483

Fax: 0086-574-88017980

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