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Groupes de Produits
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Type de paiement: L/C,T/T,D/P,D/A
transport: Ocean,Land,Air,Express
marque: YUHONG
Tolérance: ± 10%
Service De Traitement: Pliant
ASTM A790 S31803 (1.4410) Tuyaux en acier inoxydable duplex
YUHONG SPECIAL STEEL traite de l'acier inoxydable austénitique, de l'acier allié au nickel (Hastelloy, Monel, Inconel, Incoloy) des tuyaux et tubes sans soudure et soudés depuis plus de 25 ans, vendant chaque année plus de 80000 tonnes de tuyaux et tubes en acier. Notre client couvre déjà plus de 45 pays, comme l'Italie, le Royaume-Uni, l'Allemagne, les États-Unis, le Canada, le Chili, la Colombie, l'Arabie saoudite, la Russie, la Corée, Singapour, l'Autriche, la Pologne, la France, .... Et notre filiale du groupe et usine ont déjà été approuvées par : ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.
Normes : ASTM/ASME A789/SA789, A790/SA790, A450, A530
Matériel: UNS S31803 (Cr22Ni5Mo3/1.4462)/2205, UNS S32750(1.4410) , UNS S31500 (Cr18NiMo3Si2),
UNS32760(1.4501)
Composition chimique
| Grade |
C max |
Si max |
Mn max |
P max |
S max |
Cr | Ni | Mo | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Propriétés physiques
| Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC |
| UNS S32750 | 550 | 800 | 15 | 20 |
| UNS S31803 | 450 | 620 | 25 | 20 |
| UNS S31500 | 440 | 630 | 30 | 20 |
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Application duplex de tuyau d'acier inoxydable :
Traitement chimique, Transport et Stockage.
Exploration pétrolière et gazière et plates-formes offshore.
Raffinage du pétrole et du gaz.
Milieux marins.
Équipement de contrôle de la pollution.
Fabrication de pâtes et papiers
Usine de traitement chimique
Certains des tests de qualité que nous effectuons comprennent :
| 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 |
Essais supplémentaires : Outre les essais mentionnés ci-dessus, nous effectuons également des essais supplémentaires sur les produits fabriqués. Les tests effectués dans ce cadre comprennent :
| Unités de vente | : | Ton |
|---|---|---|
| Type de colis | : | CAISSE EN CONTREPLAQUÉ |
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Détails d'emballage: CAISSE EN CONTREPLAQUÉ
productivité: 1000TONS
transport: Ocean,Land,Air,Express
Lieu d'origine: CHINE
Soutenir: 1000TON
Hafen: NINGBO,TIANJING,SHANGHAI
Type de paiement: L/C,T/T,D/P,D/A
Incoterm: FOB,CFR,CIF,EXW,Express Delivery
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.