Made in china high quality precision aisi 4130 alloy steel pipe
Precision cold drawn seamless steel tube
OD16-325 the wall thickness is 1-22.
Delivery condition:
BK,BKW,GBK,NBK,BKS
Length
0.5-9m,or according to the clients' request
Materia
10#,20#, 45#,25Mn,E355(Q345B, St52),27SiMn
Standard
GB/T8713,GB/T3639,DIN2391,EN10305,ASTMA519,
ASTMA106-2006
ID tolerance
H8,H9
MOQ
5MT
Package
standard package or bundle with strips or wooden case
or according to customers' requirement
Place of Origin
Shandong,China
Payment
L/C or T/T (30% in advance and 70& against the copy of B/L)
Delivery
Within 30 days after confirming the deposit
Working Method
Cold drawn/rolled, honed/SRB, polished
Delivery condition of hydraulic cylinder tube:
1.NBK(+N) of hydraulic tube
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A) of hydraulic cylinder tube
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C) of honed tube
the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee
4. BKW(+LC) of hydraulic cylinder tube
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)
5. BKS(+SR) of honed tube
have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again
1, What is your main products?
Our main products cold drawn tube, cold rolled tube, hydraulic cylinder pipe, SRB honed tube
2, What is the MOQ?
5Ton
3, How about delivery time?
The time of delivery is about 20 days after we received the deposit.
4, What is the shipping port?
We ship the goods via Qingdao and Yantai
5, What is your payment terms?
We accept 30% TT in advance, 70% balance before shipment.