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Stainless steel 904L

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Product introduction

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. 904L is non-magnetic, and offers excellent formability, toughness and weldability.
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.

ITEM	Stainless Steel Sheet From China Facotry
Grade	201.202.301.302.304.304L.310S.316.316L.321.430.430A.309S.2205.2507.2520.430.630.631 .410.440.904Lect. Or Customized
Certificate	SGS,BV,IQI,TUV,ISO,etc
Surface	No.1, 2B, BA, 8K Mirror, Hairline,satin, Embossed,brush,No.4,HL,matt,pvc film,laser film.
Standard	GB, AISI, ASTM, ASME, EN, BS, DIN, JIS
Package	Standard export sea-worthy packing or customized
MOQ	1Ton

Technical data

Chemical Composition

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

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B)	Brinell (HB)
904L	490	220	36	70-90 typical	150

Physical Properties

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	At 20°C	At 500°C
904L	7900	190	15	-	-	11.5	-	500	952

Grade Specification Comparison

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
904L	N08904	904S13	-	1.4539	X1NiCrMoCuN25-20-5	2562	-

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.

Stainless Steel Seamless Pipe

Item	Standard	ASTM A213/A213M				ASTM A312/A312M				JIS G 3459
Grade		TP304 TP316 TP317 TP347 TP309H*		TP304L TP316L TP317L TP310S TP310H* TP321H△		TP304 TP316 TP317 TP317 TP317*		TP304L TP316L TP317L TP310S TP310H* TP321H△	SUS 304TB SUS 316TB SUS 317TB SUS 310TB SUS 321TB SUS 321HTB*	SUS 304LTB SUS 316LTB SUS 317LTB SUS 310LTB SUS 347TB




Yield Strength		≥170; ≥205				≥170; ≥205				≥170; ≥205
Tensile Strength		≥485; ≥515				≥485; ≥515				≥485; ≥520
Elongation		≥35				≥35				≥30; ≥35
Flattening test(mm)		H=1.09t/(0.09+t/D)and test completeness				H=1.09t/(0.09+t/D)and test completeness				H=1.09t/(0.09+t/D)
Expanding test(mm)		Expanding rate of inside diameter is21-68％								α=60° Expanding12%D
Grain size		"*""△"ASTM E112"△"No.7or thicker				"*""△"ASTM E112"△"No.7or thicker				“*”、JIS G0551 7# or 7#above
Hydraulic test(MPa)		D	Pmax		Hydraulic test p=220.6t/D designated by user and can be replaced by nondestructive flaw detection	D	Pmax	ASTM A530 /A530M D≤270mm P=2Rt/D in the formula R=50%σ0.2	P=2Rt/D in the formula R=0.6σ s can be replaced by nonderstructive flaw detection
		<25.4	7
		25.4-<38.1	10			≤88.9	17
		38.1-<50.8	14
		50.8-<76.2	17			>88.9	19
		76.2-<127	24
		≥127	31
Ntergranular corrosion test		ASTM A262 E method (supplemental requirement)				ASTM A262 E method (supplemental requirement)				JIS G0575(special requirement)
Nondestructive flaw detection		ASTM E213 E309 E426				ASTM E213 E309 E426				Can use eddy current or ultrasonic flaw detection eddy current JIS G0583EV ultrasonic JIS G0582 UD
Heat treatment		Requirements				Requirements				Requirements
Permitted variations in outside diameter (mm)		Outside diameter		Permitted variations in outside diameter		Outside diameter		Permitted variations	Outside diameter	Permitted variations
		<25.4		±0.10		10.3-48.3		+0.40/-0.80	<30	±0.3
		25.4-≤38.1		±0.15		>48.3-114.3		+0.80/-0.80
		>38.1-<50.8		±0.20		>114.3-219.1		+1.60/-0.80
		50.8-<63.5		±0.25		>219.1-457.2		+2.40/-0.80	≥30	±1%
		63.5-<76.2		±0.30		>457.2-660.4		+3.20/-0.80
		76.2-≤101.6		±0.38		>660.4-864		+4.00/-0.80
		>101.6-≤190.5		+0.38/-0.64		>864-1219.2		+4.80/-0.80
Permitted variations in wall thickness		>190.5-≤228.6		+0.38/-1.14		Permitted variations in wall thickness（mm） ±12.5%t				t<2	±0.2
		Outside diameter		Permitted variations in wall thickness
		≤38.1		+20%t/-0						t≥2	±10%
		>38.1		+22%t/-0
Bending		Reasonable straightness				Reasonable straightness				Practical straightness
Other requirements		HRB<90				HRB<90				Hardness HRB<90(special requirement)

Warehouse Storage

TIANYI Steel (Shandong) Co., Ltd. is located in the beautiful Shandong Province. With the continuous development of business, the company's business scope continues to expand. The company has a group of professional sales staff to provide customers with high-quality services. The company is committed to providing customers with high-quality, low-cost steel products. We have won the trust and praise of our customers with our commitment and quality-oriented service concept.

Packing and shipping

Our main products include: carbon steel plate, carbon steel pipe, color-coated sheet/coil, galvanized sheet/sheet tube/coil/corrugated sheet/plate steel (I-beam channel steel H-beam), long product, galvanized pipe, Welded pipe, gas pipe, spiral pipe, plate, thread, wire, automobile flat steel, etc. The stock of each specification is sufficient. And it is an excellent distributor of Chinese state-owned enterprises: Baosteel, Baotou Steel, Anshan Iron and Steel, Baotou Iron and Steel, and other national iron and steel enterprises.

Application field

Our advantage is to integrate market information, quickly find the products you need, provide high-quality price concessions, one-stop service, and provide you with products accurately and quickly. We always adhere to the tenet of "quality first, customer first, high-quality service, honesty and trustworthiness". With high-quality products, good reputation and high-quality service. We are committed to win-win cooperation with domestic and foreign merchants. We look forward to common development and create brilliance together. Feel free to contact our team to experience supreme service and quality products. Looking forward to working with us.

Customer praise

Customer visit

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Q5:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q6:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.

Q7.Do you provide custom made Products service?

A: Yes,if you have your own design , we can produce according to your specification and drawing.

Q8:What are the certifications for your products?

A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.

Q9:How long does your delivery time take?

A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.

Q10: How many countries you already exported to?

A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.

Stainless Steel Plate