Peb cov DIN933 S32750 Super Duplex Bolts yog ua raws li ASTM A193 standard, siv S32750 super duplex khoom nrog ib qho tshuaj tov muaj zog: 24-26% chromium, 6-8% nickel, 3-4% molybdenum, thiab 0.18-0.22% nitrogen. Qhov combo no tau muab lawv lub zog tensile ntawm 800-1000 MPa - muaj zog dua li niaj hnub duplex bolts - thiab ua rau lawv tuav tau zoo kawg li tawm tsam xeb hauv cov chaw tshwj xeeb xws li dej hiav txwv lossis cov tshuaj tso tsheb hlau luam.
Muab lawv tso rau hauv 6% ferric chloride test (raws li ASTM G48 Method C) ntawm 50°C, thiab lawv tsis qhia ib qho pitting txawm tias tom qab 300 teev. Yog vim li cas lawv yog txoj kev xaiv zoo rau offshore rigs, desalination nroj tsuag, los ib qho chaw uas ob qho tib si zog thiab corrosion kuj yog qhov tseem ceeb. Rau wholesalers, qhov no txhais tau tias koj tuaj yeem khaws ib hom bolt uas ua tau ntau yam haujlwm, yog li koj tsis tas yuav khaws ntau yam sib xyaw.
Peb ob yam finishes: pickled (per ASTM A380) losnce corrosion kuj los ntawm tsim 7-9μm tiv thaiv txheej, thiab oiled (nrog lub teeb ntxhia txheej) los khaws threads hauv qhov zoo khaws cia. Cov pickled tiav ua rau lawv 40% ntau resistant rau pitting dua untreated bolts hauv chloride kuaj.
Peb cov threading yog spot-on: UNC threads (ASME B1.1) muaj tolerance ntawm ± 0.015mm, yog li lawv haum nuts zoo kawg. Peb kuj tuaj yeem ua custom lengths (10mm txog 300mm) nrog ± 0.3mm kam rau ua, siv txias heading machine uas tsis muaj zog cov hlau. Txhua lub bolt tau hardness check (Rockwell C 28-35, per ASTM E18) uantej shipping los Spy tias lawv zoo ib yam.
Raws li ib tug Suav chaw tsim tshuaj paus nrog 10 xyoo muab EU thiab US offshore industries, peb khiav 7 nplooj siab ntau lawm kab - suav nrog 3 high-precision CNC tshuab - nrog txhua xyoo muaj peev xwm ntawm 3,200 tons. Peb cov raw khoom mus dhau lub tshuab nqus tsev degassing kom khaws impurities qis, nrog oxygen cov ntsiab lus qis dua 15ppm, zoo los ntawm peb lub hauv tsev OES tshuab (accurate to 0.001%).
Peb khaws 500-600 tons hauv tsev khaws khoom ntawm peb lub Ningbo warehouse, npog qhov ntau thiab tsawg los ntawm ¼" txog 2½" hauv kab thiab ntev los ntawm 1" txog 12". Cov khoom muag hloov tshiab ob zaug hauv ib hnub ntawm peb lub vev xaib, thiab FOB Ningbo shipments rau in-stock bolts tawm hauv 6 hnub - pab koj khaws koj cov neeg siv khoom tuaj rau lub sijhawm.
Peb yog ib tug muaj npe nrov lag luam wholesale manufacturers thiab cog lus hnyav los muab cov kev lees paub rau koj qhov DIN933 S32750 Super Duplex Bolts xaj:
Ua siab ntev, Quality Guarantee: txhua qhov bolts uas tsis ua tau raws li DIN933 S32750 Super Duplex Bolts standard yuav raug siab dawb, yam tsis raug nqi rau koj.
Qhov thib ob, Fast Delivery: Peb khaws cov khoom siv feem ntau ntau (M8-M30) ntawm DIN933 S32750 Super Duplex Bolts txhua xyoo.
Qhov thib peb, Production Transparency: Peb tuaj yeem muab cov ntaub ntawv muaj peev xwm thiab Hoobkas audit videos raws li kev thov, ua rau koj qhia peb cov peev xwm tsim khoom rau koj cov neeg siv khoom.
Qhov thib ob plaub, 24/7 Support: Peb yuav tso ib tug mob siab rau tus account manager los muab kev txhawb nqa nqa xeeb rau koj qhov DIN933 S32750 Super Duplex Bolts order. Thov hu rau peb yog koj xav tau kev pab txog technical specifications, order updates, los lwm yam teeb meem.
Super Duplex Stainless Steel S32750 (UNS S32750; tseem hu ua 2507, DIN 1.4410)
Cov Tshuaj Muaj pes tsawg leeg
Cr: 24.0-26.0%, Ni: 6.0-8.0%, Mo: 3.0-4.0%, N: 0.18-0.22%, C: ≤0.03%, Mn: ≤1.0%, Si: ≤0.8%, P: ≤0.03%, S: ≤0.02%, Cu: ≤0.5%
Cov Khoom Siv Kho Tshuab
Lub Zog Tensile: ≥800 MPa
Lub Zog Yield: ≥550 MPa
Kev Nyuaj: ≤310 HB (Brinell); ≤32 HRC
Kev Ntev: ≥15%
Kev Tiv Thaiv Kev Xeb
Kev tiv thaiv zoo heev rau kev xeb pitting, kev xeb tawg, thiab kev ntxhov siab xeb tawg (SCC) hauv cov chaw muaj chloride ntau (xws li dej hiav txwv, cov kua qaub). Kev Tiv Thaiv Pitting Sib Npaug (PREN) ≥40, ua tau zoo dua li cov hlau duplex (2205) thiab austenitic (316).
Qhov Kub thiab Txias
Qhov kub thiab txias rau kev siv: -50°C txog 300°C (zoo tagnrho rau high-pressure, harsh industrial thiab offshore settings).
Cov Khoom Siv Sib Nqus
Sib Nqus (duplex microstructure: ~50% ferrite + ~50% austenite)
Hexagonal (hex) head (6-sided, standard rau wrench tightening)
Hom Xov
Partial thread (threaded los ntawm qhov kawg mus rau ib qho kawg, tawm ib qho smooth shank hauv qab lub taub hau) lossis full thread (optional, raws li daim ntawv thov)
Cov Qauv Xov
Metric Coarse (ISO), UNC (Unified National Coarse), UNF (Unified National Fine)
Metric Sizes (M)
M6 txog M64 (common: M8, M10, M12, M16, M20, M24, M30)
Imperial Sizes
1/4" txog 2-1/2" (common: 3/8", 1/2", 5/8", 3/4", 1")
Ntev Ntau Yam
20 hli txog 1000 hli (metric); 1" txog 40" (imperial)
Kev Ua Raws Li Cov Qauv
ASTM A193 B8S, ASME SA193, ISO 898-1, DIN 931 (ib nrab xov), DIN 933 (tag nrho xov)
Cov Kev Siv Tseem Ceeb
Roj thiab roj av hauv hiav txwv: cov taub dej, cov kav dej hauv qab dej, cov khoom siv valve
Kev ua tshuaj lom neeg: cov tshuab hluav taws xob siab, cov tshuab kua dej chloride
Cov nroj tsuag desalination: cov khoom siv tswj dej hiav txwv
Kev tsim kho dej hiav txwv: cov tshuab nkoj, cov platforms hauv hiav txwv
Qhov Chaw Tiav
Pickled, passivated, lossis polished (los ua kom muaj kev tiv thaiv corrosion thiab txo qhov paug)
Cov Lus Nug Feem Ntau
Q: Koj puas tseem ceeb suav nrog cov khoom dab tsi?
A: Peb cov khoom tseem ceeb suav nrog carbon steel, stainless hlau, thiab alloy steel, nrog kev tsom ntsoov rau cov kav dej, flanges, thiab fittings.
Q: Ntev npaum li cas los tsim ib qho kev txiav txim nrog tshwj xeeb specifications?
A: Feem ntau siv 25-30 hnub, nyob ntawm qhov nyuaj ntawm tus ncej. Peb yuav lees paub lub ntsiab lus tom qab tshawb xyuas koj cov kev xav tau.
Q: Koj puas tuaj yeem muab cov ntaub ntawv kom meej?
A: Yog, peb xav xa ib daim ntawv digital catalog nrog specifications, nqi, thiab cov duab los ntawm email. qhia qhia peb koj cov kev xav tau tshwj xeeb.
Hu rau tam sim no
