| Material Grade: | S32750 ， F53， 2507， 1.4410 ， F55， S32760 ， 1.4501 | Standard: | ASTM A790 ， ASME SA790 ， ASTM A928 ， ASME SA928 |
|---|---|---|---|
| Type: | Seamless ， Welded | Certificate: | Norsok ， ABS， LR， CCS， BV， DNV-GL ， KR， ISO ， PED ， ASME |
| NDT: | MT， ET， UT， HT， PT， PMI | Packing: | Ply Wooden Case |
| High Light: | super duplex， welded steel pipe | ||
Super Duplex Steel Pipe ， ASTM A790 S32750 ， ASTM A790 2507， 1.4410
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 MPa | Rp 1.0 MPa | Rm MPa |
20 | 400 | 440 | 600 |
| 100 | 330 | 365 | 570 |
| 200 | 280 | 310 | 530 |
| 300 | 230 | 260 | 490 |
| °F | YS 0.2% KSI | YS 1.0% KSI | UTS KSI | Elongation % | |
| 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
NFA NACE API ISO HAF
Materials:304/304L/304H;321/321H;316/316L/316H;316TI;317L;347H;310S;UNS31803;UNS32750/U NS08904L，
TP410/TP410S;ECT
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:
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