DIN2391 ST52 Honed Steel Pipe Hydraulic Tube. Hydraulic steel tubes are basically divided into fluid pipe and oil steel bobbins used in hydraulic systems, also known as honing pipes, while cold-drawn or cold-rolled precision Seamless Steel Pipes also include hydraulic steel pipes. Cold-drawn or cold-rolled precision seamless steel pipes with high dimensional accuracy and good surface finish for hydraulic equipment. The raw material of the hydraulic steel pipe has undergone precise drawing, non-oxidative bright heat treatment (NBK state), non-destructive testing, the inner hole of the steel pipe is subjected to high pressure washing and pickling, the inner and outer walls of the steel pipe are treated with anti-rust oil, and the two ends are sealed for dust-proof treatment. . The steel pipe produced has high precision and good finish, and there is no oxide layer on the inner and outer walls of the steel pipe. Mechanical properties can be bent at any angle without deformation. It is mainly used to prepare steel pipes in the oil circuit of hydraulic systems, also known as hard piping in hydraulic systems, and Precision Steel Pipes for automobiles. The length is 6 meters (except for custom-made), and the delivery state is NBK (normalizing), GBK (annealing), BKS (stress relief annealing). The main materials are ST35, ST37.4 (10#), ST45 (20#), ST55 (35#), ST52 (16Mn), etc., which can meet the requirements of high precision, high finish, tensile strength and high mechanical properties for steel pipes. client.
Product Name | DIN2391 ST52 Honed Steel Pipe Hydraulic Tube |
Standard | DIN2391 ST52 |
Material | JIS:STKM19A ASTM:1524 EN:E355 ISO:TS18 |
Technology | Hot Rolled ,Cold Rolled,Cold Drawn,Hot Expended |
Tolerance | Control with in the standard, OD:+/-1%, WT:+/-5% |
Chemical Composition | C:≤0.22% Si:≤0.55% Mn:≤1.6% P:≤0.025% S:≤0.025% |
Mechanical Property | Yield Strength (MPa)≥:520 Tensile Strength (MPa):≥600 Elongation %≥:14 |
Application | Widely used in automobiles, motorcycles, gas springs, hydraulic machinery, construction machinery and refrigeration industry |
Payment Terms | 1.FOB 30%T/T,70% Before shipment 2.CIF 30% Pre-payment , Balance must be paid before shipment 3.Irrevocable 100% L/C at sight |
Third Party Inspection | SGS ,BV, MTC |
Advantages | 1.Short delivery time 2.Quality assurance 3.Competitive price, 4.Free Sample |
Delivery Time | Within 25 days after receipt of advance payment |
1. The main production process of hot-rolled Seamless Steel Pipe (main inspection process):
Tube blank preparation and inspection→tube blank heating→piercing→tube rolling→steel reheating→fixed (reduced) diameter→heat treatment △→finished tube straightening→finishing→inspection (non-destructive, physical and chemical, Taiwan inspection)→warehousing
2. The main production process of cold-rolled (drawn) seamless steel pipes:
Billet preparation→pickling lubrication→cold rolling (drawing)→heat treatment→straightening→finishing→inspection
Our products aye widely used in water engineering,petrochemical industry,chemical industry,electric power industry,agricultural irrigation,urban construction.
Used for liquid conveying:water supply and drainage.For gas transport:gas,steam,liquefier petroleum gas.
For structural use:as pile pipe,as a bridge;Pipes for wharves,roads and building structures.
Q: Are you a manufacturer?
A: Yes , we are a seamless steel pipe manufacturer, We have own factory, which is located in Shandong,China. We have a leading power in producing and exporting hot rolled seamless steel pipe,cold rolled seamless steel pipe,cold drawn seamless steel pipe and Alloy Seamless Steel Pipe etc. We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.