1.Super duplex Stainless Steel Fastner 2205/S31803 Bolts
1. Product Detail
Super Duplex Stainless Steel Fastener 2205/S31803 Bolts
ISO 9001:2008 certificate, EN 10204 3.1 certificate
GB, ISO, DIN, BS, ANSI/ASME/JIS, according to customer's requirement.
(1) Stainless steel: 17-4PH, 321, 904L, A-286 etc.
(2) Duplex stainless steel: Duplex 2205, 2507, Zeron 100 etc.
(3) Alloy steel: Nickel alloy 20
Monel 400, K-500
Zirconium 702, 705
Nimonic 75, 80A, 90
Titanium grade 2, grade 5
Inconel 600, 601, 625, 718, X-750
Hastelloy B-2, B-3, C-22, C-276, X
Incoloy 800, 800H, 800HT, 825, 925
Zn-plated, Ni-plated, Passivated, Tin-plated, Sandblast and Anodize, Chromate, Polish, Eletro Painting, Chrome plated etc.
Annealing, Normalizing, Tempering, Quenching, Hardening, Spheroidizing, Stress Relieving
(1) guaranted quality
(2) competitive price
(3) promptly delivery
(4) rich experience
(5) excellent service
(6) good reputation
2. Material Introduction
S31803 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.
2.1 The characteristics of S31803:
High general corrosion resistance
Pitting and crevice corrosion resistance superior to 317L austenitic stainless steel
High resistance to chloride stress corrosion cracking
High resistance to corrosion fatigue and erosion
Good sulfide stress corrosion resistance
Excellent impact toughness
Lower thermal expansion and high thermal conductivity than austenitic stainless steels
Good workability and weldability
2.2 The applications of Duplex S31803:
Chemical process vessels, piping and heat exchangers
Pulp mill digesters, bleach washers, chip pre-steaming vessels
Food processing equipment
Oil field piping and heat exchangers
Flue gas desulfurization equipment
Effluent scrubbing systems
Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
Cargo tanks for ships and trucks
Special alloy product Flow Chart
Place of Origin: Jiangsu China (Mainland)
Brand Name: HPF,QFC
Certificate: ISO 9001:2008
Inspection: EN 10204 3.1 ceritificate
Grade: 4.8-12.9,A2-70,A4-80 etc.
Standard: GB,ISO,DIN,BS,ANSI etc.
Material: carbon steel,alloy steel etc.
Application: ship,power,chemical industry,car etc.
Category: hexagon head bolt,thread rod,stud bolt,U-shape bolt etc.
Type: hexagon head,flat head,round head