Material of H-beam SM490YB marine field
As an important structural material, H-shaped steel is widely used in shipbuilding, marine engineering, water conservancy and other fields. Among them, SM490YB is a high-quality H-shaped steel material, which is especially suitable for marine engineering.
SM490YB steel has high strength, good corrosion resistance, good weldability and cold formability. At the same time, it also has excellent low temperature toughness. After low temperature impact test and overpressure test, its performance is stable, and it can withstand large dynamic load and sea wave impact.
In shipbuilding, SM490YB steel is often used to manufacture parts such as hulls, plates, keels, gun shafts and propulsion systems. In marine engineering, it is also widely used in the manufacture of offshore platforms, submarine pipelines and marine facilities.
Generally speaking, H-shaped steel SM490YB is a high-toughness, high-corrosion-resistant steel material, which is suitable for the construction and construction of various structures and facilities in marine environments. With the continuous development of the marine engineering field in the future, the application prospect of SM490YB steel in this field will definitely become wider and wider.


Theoretical weight table of welded H-beam specification(KG/M) | |||||
Category | Type | H×B(mm) | t1(mm) | t2(mm) | Theoretical weight |
HW | 200×200 | 200×200 | 8 | 12 | 50.5 |
200×204 | 12 | 12 | 56.7 | ||
250×250 | 250×250 | 9 | 14 | 72.4 | |
250×255 | 14 | 14 | 82.2 | ||
300×300 | 294×302 | 12 | 12 | 85 | |
300×300 | 10 | 15 | 94.5 | ||
300×305 | 15 | 15 | 106 | ||
350×350 | 344×348 | 10 | 16 | 115 | |
350×350 | 12 | 19 | 137 | ||
400×400 | 388×402 | 15 | 15 | 141 | |
394x398 | 11 | 18 | 147 | ||
400×400 | 13 | 21 | 172 | ||
400×408 | 21 | 21 | 197 | ||
414x405 | 18 | 28 | 233 | ||
428×407 | 20 | 35 | 284 | ||
458×417 | 30 | 50 | 415 | ||
498×342 | 45 | 70 | 605 | ||
HM | 150x100 | 148×100 | 6 | 9 | 21.4 |
200×150 | 194×150 | 6 | 9 | 31.2 | |
250×175 | 244×175 | 7 | 11 | 44.1 | |
300x200 | 294x200 | 8 | 12 | 57.3 | |
350×250 | 340×250 | 9 | 14 | 79.7 | |
400×300 | 390×300 | 1o | 16 | 107 | |
450×300 | 440×300 | 11 | 18 | 124 | |
500×300 | 482x300 | 11 | 15 | 115 | |
488×300 | 11 | 18 | 129 | ||
600×300 | 582×300 | 12 | 17 | 137 | |
588×300 | 12 | 20 | 151 | ||
594x302 | 14 | 23 | 175 | ||
HN | 100×50 | 100×50 | 5 | 7 | 9.54 |
125×60 | 125×60 | 6 | 8 | 13.3 | |
150×75 | 150×75 | 5 | 7 | 14.3 | |
175x90 | 175x90 | 5 | 8 | 18.2 | |
200×100 | 198x99 | 4.5 | 7 | 18.5 | |
200x100 | 5.5 | 8 | 21.7 | ||
250x125 | 248×124 | 5 | 8 | 25.8 | |
250x125 | 6 | 9 | 29.7 | ||
300x150 | 298×149 | 5.5 | 8 | 32.6 | |
300×150 | 6.5 | 9 | 37.3 | ||
350×175 | 346×174 | 6 | 9 | 41.8 | |
350×175 | 7 | 11 | 50 | ||
400x150 | 400×150 | 8 | 13 | 55.8 | |
400×200 | 396×199 | 7 | 11 | 56.7 | |
400×200 | 8 | 13 | 66 | ||
450x150 | 450×150 | s | 14 | 65.5 | |
450×200 | 446x199 | 8 | 12 | 66.7 | |
450×200 | 9 | 14 | 76.5 | ||
500x150 | 500×150 | 10 | 16 | 77.1 | |
500x200 | 496×199 | 9 | 14 | 79.5 | |
500×200 | 10 | 16 | 89.6 | ||
506×201 | 11 | 19 | 103 | ||
600×200 | 596×199 | 10 | 15 | 95.1 | |
600×200 | 11 | 17 | 106 | ||
606×201 | 12 | 20 | 120 | ||
700×300 | 692x300 | 13 | 20 | 166 | |
700×300 | 13 | 24 | 185 | ||
800x300 | 792×300 | 14 | 22 | 191 | |
800×300 | 14 | 26 | 210 | ||
900x300 | 890×299 | 15 | 23 | 213 | |
900x300 | 16 | 28 | 243 | ||
912x302 | 18 | 34 | 286 |
Item | Carbon Steel Plate / Pipe / Bar / Coil/H-Beam | |
Steel Grade | AH36 E36 A36 D36 DH36 EH36 S235JR 1.0038 S235J0 S235J2 1.0117 | |
S275JR 1.0044 S275J0 S275J2 1.0145 S355JR 1.0045 S355J2 1.0577 | ||
S355NL 1.0546 SS400 Q235 Q345 S235jr Ss355jr Sm490ya Sm490yb | ||
Standard | ASTM A29/A29M-05,JIS G4051/G3131/G3101/G3505,EN10130,TOCT380/1050/ISO630/683/4997/13976/5000/11949,KS D3503/355/3517,IS 1079/5517 Sm490ya Sm490yb | |
Surface | Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE | |
Technique | Hot rolled , Cold rolled | |
Carbon Steel Plate / Pipe / Bar / Coil /Beams | ||
Size | thickness | 1mm-150mm(SCH10-XXS) |
Outer diameter | 6mm-2500mm (3/8"-100") | |
width | CUSTOMIZED | |
length | CUSTOMIZED | |
Trade terms | Price terms | FOB,CIF,CFR,CNF,Ex-work |
Payment terms | L/C at sight, T/T (30%DEPOSIT) | |
Delivery time | 7-10 days or customized | |
Export to | Ireland,Singapore,Indonesia,Ukraine,Saudi Arabia,Spain,Canada,USA, Brazil,Thailand,Korea,Italy,India,Egypt,Oman,Malaysia,Kuwait,Canada, Viet Nam, Peru,Mexico,Dubai, Russia,etc | |
Package | Standard export seaworthy package,or as required. | |
Application | Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear,energy,machinery,biotechnology,paper making,shipbuilding,boiler fields. | |
Pipes also can be made according to the customer's required. | ||
Contact | If you have any questions,please feel free to contact me. | |
Container size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM | |
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM | ||
40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |





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FAQ
1. who are we?
We are based in Shandong, China, start from 2020,sell to North America(25.00%),South America(22.00%),Southeast Asia(20.00%),South Asia(10.00%),Eastern Europe(6.00%),Africa(5.00%),Domestic Market(5.00%),Mid East(5.00%),Oceania(2.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Stainless Steel Coil/Pipe; Galvanized Steel Coil; Color Coated Coil; Cold Rolled Coil; Carbon Steel Coil/Pipe, Color Coated Steel,H beams,I beams
4. why should you buy from us not from other suppliers?
Shandong Xinchengyuan Import and Export Co., Ltd is a professional steel company engaged in the research, development, production, sale and service. It had five branches companies .Our annual sales nearly one billion, about 280,000 tons steel, It is locate in Jinan
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,CPT,DDP,DDU;
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