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ABOUT USThe company can also deliver goods directly from the steel plant according to customer needs, thus saving landing costs and reducing costs and prices. In line with the service purpose of moving house and considering the needs
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PRODUCT CENTERWith strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production
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NEWSWith strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production
Stainless steel 904L
Classification :
PRODUCT DETAILS
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 |
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| <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) | ||||||||
Storage video
Factory appearance and appearance
With strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons, saving customers procurement time, ensuring customers' production cycle and product quality, and being the quality partner of end customers.
Factory appearance and appearance
1. Samples may be provided by the seller and freight borne by the buyer.
2. We have full stock,and can deliver within short time. Many styles for your choices.
3. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
4. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
5. We have many years of experience in manufacturing and selling steel and we cherish every order from our honor.
Application field
The main supply fields are: aerospace, national defense equipment, military weapons, chemical industry, shipbuilding, nuclear energy, trains, containers, environmental protection, precision machining, auto parts, machinery, electronic products, molds, medical treatment Equipment, construction, decoration, etc.
Customer Visit Feedback
With 30 years of experience in R&D and production of high-quality steel, we have been selected as one of China's top 500 enterprises for 15 consecutive years. With strong financial strength, we have set up large factories and warehouses in more than 10 cities across the country, with a stock of more than 100000 tons
Honor
The company has adhered to the principle of quality first and service-oriented for many years, and has provided high-quality steel for key national projects such as steel structure engineering, highway and railway construction, hydropower stations, mines, and plant renovations.
COOPERATIVE PARTNER
FAQ
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:Do you have the products in stock?
A:We have the products in stock. Also, we can produce for your order.
Q5:Do you offer after-sales services?
A:Certainly. If you have any questions, please feel free to contact us. We shall certainly do it to your satisfaction.
Q6:What kind of work does your company do?
A:Our company is a professional manufacturer. We mainly produce stainless steel plate/coil/round rod, carbon steel plate/coil,galvanized plate/coil, PPGI coil, roofing sheet and so on.
Q1:Will you offer samples?
A:Yes. We will provide samples according to your needs and send them out within three days after receiving payment.
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.
Q7;What are the advantages of your company？
We have international advanced production equipment, large factory buildings, strong company strength, perfect products and reliable quality。
Q8： Are you a factory or trading company?
A;We are a factory specializing in the production of steel
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Email : phl@zgbaogangsteel.com
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Address : Minlong steel trading market , Qingdao ,China
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