SUZHOU SUPERIOR STEEL CO.,LTD

ASTM A789 UNS 31803,Duplex Stainless Steel Pipe Brighting Annealing

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
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