Lork Supply of Super Duplex Stainless Steel Coils for Gas Scrubbing Plants 904L

• Type: Stainless Steel Coils
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 904L
• Certification: ISO, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold Rolled
• Model NO.: 904L Coil
• Surface Treatment: Pickling
• Key Words: 904L Coil
• Thickness: 0.3 -20mm
• Width: 1000mm-2000mm
• Length: as Your Requirments
• Diameter Tolerance: H9, H11, H13, K9, K11, K13 etc
• Sample: Free-Sample
• Surface: Lack, Peeled, Polishing, Bright, Sand Blast, Hl
• MOQ: 100kgs
• Stock: in Stock
• Transport Package: Wooden Package
• Specification: 904L Coil
• Trademark: LORK
• Origin: China
• HS Code: 7505120000
• Production Capacity: 50000kg/Month

Product Description

Product Description

 

Introduction

LORK is a special stainless steel manufacturer with 20 years of manufacturing experience.
 

904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L is non-magnetic, and offers excellent formability, toughness and weldability.
Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.

Duplex Stainless 904L Applications

▪ Wiring in electrostatic precipitators
▪ Oil refinery components
▪ Seawater cooling devices
▪ Gas scrubbing plants
▪ Pulp and paper processing industries
▪ Acetic, phosphoric and sulphuric acid proc

Possible Alternative Grades

Grade	Reasons for choosing grade 904L
316L	A lower cost alternative, but with much lower corrosion resistance.
6Mo	A higher resistance to pitting and crevice corrosion is needed.
2205	A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.)
Super duplex	Higher corrosion resistance is needed, together with a higher strength than 904L.

904L Pipe Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	Cu
904L	max.	0.02	2	1	0.045	0.035	19-23	4-5	23-28	1-2

904L Duplex Stainless Sheet Pipe Mechanical Properties
 

Tensile strength Rm	650 - 850 MPa
Yield point Rp0.2	≥ 300 MPa
Hardness	≤ 260 HB
Elongation	≥ 35%
Modulus of elasticity, E	195 GPa
Density	8.10 kg/dm³
Annealing	1050 - 1150ºC

Available Sizes And Specifications

904L stainless steel coil sizes and specifications
Grade	904L
Cold rolled stainless steel coil	Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm, Surface: 2B/BA/SB/8K/HL/1D/2D etc
Hot rolled stainless steel coil	Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm Surface: No.1/pickling
Standard	ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,   BS 1449, DN17441, G4305

Detection

Processing

 

Packaging & Shipping

Company Profile

FAQ

Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .

Q2: Can I have free sample before making orders?

A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.

Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .

Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .

Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .