COMPANY INFORMATION
ST35 High pressure cold drawn carbon steel boiler tube
we are the manufacture of precision seamless steel tube and we are the top 5 manufacturer in China , we mainly produces all kinds of specifications seamless steel pipe which are used in hydraulic cylinder ,automobile ,oil drilling ,textil machinery and so on .so welcome to our company to visiting and negotiate business.
PRODUCT INFORMATION
Article | ST35 High pressure cold drawn carbon steel boiler tube |
Surface | according to the customer’s acquirement |
Length | 1m - 6m or as your requirement |
W.T. | 2-30mm |
O.D. | 30-250mm |
Application | Vehicles, engineering machinery hydraulic chassis, air piping system, etc |
Packing | We usually bundle with steel strips ,branding parcel ,wooden box |
Terms conditions | CIF,CFR,FOB |
Payment | should be 30% in advance by T/T and the balance upon B/L copy or L/C. |
Delivery Time | 25 days after received the deposit by T/T |
Note | we can produce other standard as the customers' requirement |
MECHINCAL COMPOSITION
Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | other |
C20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 |
| Cu≤0.25 |
CK45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 |
| Cu≤0.25 |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.040 | 0.040 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | Alt≥0.015 |
ST52 E355 16Mn | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | 16Mn |
25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 |
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27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 |
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42SiMn | 0.39-0.45 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 |
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42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 |
| 0.15-0.25 |
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SOME DIMENSIONS
40*50 | 90*110 | 140*170 | 190*215 |
40*55 | 95*110 | 145*170 | 190*220 |
50*60 | 95*115 | 150*170 | 190*225 |
50*65 | 100*110 | 150*175 | 200*220 |
55*70 | 100*114 | 150*180 | 200*225 |
60*70 | 100*115 | 155*180 | 200*230 |
60*75 | 100*120 | 160*175 | 200*245 |
60*78 | 100*125 | 160*180 | 200*250 |
63*73 | 105*125 | 160*185 | 220*250 |
63*75 | 110*125 | 160*190 | 220*270 |
63*76 | 110*130 | 160*195 | 225*250 |
63*78 | 115*130 | 165*190 | 240*273 |
65*80 | 115*135 | 165*205 | 250*290 |
70*80 | 120*140 | 170*200 | 250*300 |
70*82 | 125*140 | 180*200 | 260*300 |
70*85 | 125*145 | 180*205 | 280*323 |
70*90 | 125*150 | 180*210 | 280*355 |
75*90 | 130*150 | 180*215 | 300*350 |
80*92 | 130*155 | 180*220 | 200*213 |
80*95 | 130*160 | 185*205 | 200*216 |
80*100 | 135*160 | 185*215 | 250*266 |
85*100 | 140*160 | 185*220 | |
90*105 | 140*165 | 190*210 |
FINISHED PRODUCTS
APPLICATION
Application | Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services. |
For Auto use,machinery use,oil cylinder tube,motorcycle shock reducer use, auto shock reducer inner cylinder,gas spring use etc. | |
Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building,Liquid service, petroleum cracking, chemical fertilizer equipment,Drawing-oil-equipment and structure purposes. |
TESTING
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material |
2.100% Dimension & Visual Examination |
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test |
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT) |
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor) |
6.Straightness Test (optional) |
7.Roughness Test (optional) |
8.Intergranular Corrosion Test(optional) |
9.Impact Test (optional) |
10.Grain Size Determinations (optional) |
NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION. |
OUR SERVICES
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T , L/C And so on.
OUR PROCESSING
PACKAGING AND SHIPPING
Please don’t worry that our products are packed, stored, transported according to the international regulation.
We do care about the quality of our products; even some little details are paid attention to. We wrap the
precision steel pipe with anti-rust paper and steel rings to prevent damage. Identification labels are tagged
according to standard specification or customer's instructions. Special packing is available as per customer's requirement. Plus, our storage racks are made of wood. Any unwanted chemical reaction can be prevented.
OUR CERTIFICATE