1. chemical composition and technicial property
|
Grade |
C |
Si |
Mn |
P |
S |
Yield Strength(mpa) |
Tensile Strength |
Elognation % |
|
sae1018 |
0.15-0.20 |
0.07-0.60 |
0.50-0.90 |
0.04max |
0.05max |
415 |
520 |
27 |
|
sae1020 |
0.17-0.24 |
0.20-0.60 |
0.35-0.65 |
0.035max |
0.035max |
490 |
540 |
28 |
2. pipe picture
3. seamless steel pipe grades can be supplied
Seamless Steel pipe grades
|
Descriptions |
Grades |
|
Structural pipe |
20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2 SAE1018, SAE1020, SAE1518, SAE1045. |
|
Liquid pipe |
20# q295b-e, q345b-e |
|
High pressure boiler tube |
20G 15MnG 20MnG 15CrMoG, 12Cr1MoVG St35.8, sa106b, sa106c, sa210a, sa210c, A333P2, A333P11, A33P12, A333P22, A33P36, A333P91, A333P92, A335T2, A335T11, A335T12, A335T22, A335T91, A335T23, A335T9 |
|
Pipeline |
API SPEC 5L, X42, X52, X60, X65,X70,X80 ASTMA53, ASTM A106, ASTM A333, BS301, BS3602, BS3603, BS3604, PSL1, PSL2, DNV-OS-F101, CSA-Z245 |
|
Alloy pipe |
4140, 42CrMo, 32CrMo, 15CrMo, |
|
Packing |
Black paint, Varnish painting, Tarpaulin packing |
|
End |
Common round end, beveled. |
|
Processing |
Galvanizing; cutting; making thread outside the pipe; Machining. |
4. seamless pipe production procedure and methods:
1. Hot rolled seamless steel pipe
using hot rolled steel pipe billet to make heating and piercing, elongating, sizing and stranghtening, cooling, finally hollow bars finished, this is the type most commonly used. Because it is hot rolled, so cost is lowest, but it is suit for large quantity, for small quantity, have to make cold drawn or round bar piercing. size: outer diameter 32mm- 499mm, wall thickness 4mm- 80mm
2. Cold drawn seamless steel pipe
for outer diameter not over than 63.5mm, small size hollow bar, when demanded quantity is under 5 tons, usually make cold drawn hollow bar, using larger size hot rolled hollow bar to draw to the size demanded.
some size can be finished only by one time drawing, but some other sizes might need twice or three times to finish drawing, it takes time, so the cost is higher.
cold drawn size outer diameter 16mm- 63.5mm
3. Hot- expanding seamless steel piper
For hollow bar sizes are special, not common sizes, have to use smaller thick wall hollow bar to hot expand to be larger size hollow bar, but the technical property for hot-expanded hollow bar will be lower than the original hollow bar. Size: outer diameter over 356mm.
5. seamless pipe detail:
6. seamless steel pipe stock picture:
7. steel pipe fabrication picture
steel pipe tube bending
steel pipe welding
8. Company
Tianjin Emerson Commercial and Trade Co.,Ltd has large stocks for the carbon steel and low alloy steel plates and sheets, especially have the thick plate and heavy plates on stock, also can provide the special material and large size steel plates, boiler and pressure vessel steel plate, marine steel plate, hot rolled steel plate for new production.We can provide many different processing: steel welding, making holes; steel plates cutting, plates processing, laser cutting, steel plates processing, plate work processing; metal plate processing;;cutting plates; plates cutting; laser cutting steel plates; ms plate cutting; cutting steel plate; steel plate cuttings; laser cut metal plate; iron plate cutting; cut metal plate; metal plate lasr cutting; metal plates cutting; plates cutting flange; cutting scrap steel plate; cut edge plate; steel cutting disc; carbon steel cutting disc; cutting disc for steel; cnc steel cutting; plate processing.
If you have any issue, please feel free to contact me.
9.FAQ
| Q: Will you accept the customized and OEM product? | |||||||||
| A: Yes, we can do the production based on your drawings and with your logo; also because we have very strong design and development team, so the feedback is very good for customized product. | |||||||||
| Q: How about the MOQ? If my first order qty is small, will you accept? | |||||||||
| A: We would like to do our best to support your trial order qty, so even 1 pc or 1 kg is ok to start cooperation; because we have confidence to move on second order with your esteemed company. | |||||||||
| Q: What is your payment terms ? | |||||||||
| A: Commonly two payment term for new customers: | |||||||||
| 1) 30% T/T as deposit , 70% balance against B/L copy; 2) 100% Irrevocable L/C at sight; | |||||||||
| If you need any other terms, pls feel free to contact us too, we will try our best. | |||||||||
| Q: How long is your delivery time? | |||||||||
| A: Our daily inventory is more than 8000 tons, so for common product size, just need 5 days from stocks; if the special size from new production, delivery 20-30 days. | |||||||||