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Q345B precision steel pipe

Precision seamless steel pipe is a cold drawn or hot-rolled after treatment of a high-precision steel pipe. As the precision seamless steel pipe inside and outside the wall of non-oxidized layer of precision seamless steel pipe, to withstand high pressure without leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc., is mainly used to produce pneumatic or hydraulic components Of products, such as cylinders or cylinders, are made of seamless tubes. Precision seamless steel pipe chemical composition of carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.

PRODUCT DETAILS


Product information

Precision seamless steel pipe is a cold drawn or hot-rolled after treatment of a high-precision steel pipe. As the precision seamless steel pipe inside and outside the wall of non-oxidized layer of precision seamless steel pipe, to withstand high pressure without leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc., is mainly used to produce pneumatic or hydraulic components Of products, such as cylinders or cylinders, are made of seamless tubes. Precision seamless steel pipe chemical composition of carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.

Precision tube is a high-precision, high-brightness seamless steel tube produced by cold drawing or cold rolling.Its inner and outer diameters can be accurate to within 0.2mm.

While ensuring bending and torsional strength, it is light in weight, so it is widely used in the manufacture of precision mechanical parts and engineering structures.

Precision steel pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. Due to the advantages of no oxide layer on the inner and outer walls of precision steel pipes, no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, and no cracks in flattening, it is mainly used to produce pneumatic or hydraulic components, such as cylinders or Cylinders can be seamless or welded.

Precision steel pipe process

The production process of precision steel pipes is the same as that of ordinary seamless pipes, except for the final pickling and cold rolling process.

Tube billet—inspection—peeling—inspection—heating—piercing—pickling and passivation—grinding—lubricating and air drying—cold rolling—degreasing—head cutting—inspection—marking— -Product packaging

Quality Inspection:

Tube will be subjected to the nondestructive electric test or the hydrostatic test. 

Appearance quality: cracks, folds, rolling folds, 

Grade and Chemical Composition (%) :

Material

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

ASTM 5115/GB 15Cr

0.18

0.37

0.7

0.035

0.035

1

0.3

0.3

0.15

ASTM 5120/ GB 20Cr

0.24

0.37

0.8

0.035

0.035

1

0.3

0.3

0.15

ASTM 5130/ GB 30Cr

0.34

0.37

0.8

0.035

0.035

1.1

0.3

0.3

0.15

ASTM 5140/ GB 40Cr

0.44

0.37

0.8

0.035

0.035

1.1

0.3

0.3

0.15

ASTM 5145/ GB 45Cr

0.49

0.37

0.8

0.035

0.035

1.1

0.3

0.3

0.15

ASTM 4130/ GB 30CrMo

0.34

0.37

0.7

0.035

0.035

1.1

0.3

0.3

0.25

ASTM 4317/ GB 35CrMo

0.4

0.37

0.7

0.035

0.035

1.1

0.3

0.3

0.25

ASTM 4140/ GB 42CrMo

0.45

0.37

0.8

0.035

0.035

1.2

0.3

0.3

0.25

GB38CrMoAI/JIS SCM645

0.42

0.45

0.6

0.035

0.035

1.65

0.3

0.3

0.25

ASTM 6150/ GB 50CrVA

0.54

0.37

0.8

0.025

0.025

1.1

0.3

0.25

0.1

ASTM 4142/ GB 40CrMnMo

0.45

0.37

1.2

0.035

0.035

1.2

0.3

0.3

0.3

 

 

More details

 

Steel Pipe Type

Precision seamless steel pipe

Outside Dia(mm)

10.3-1219mm

Wall Thickness(mm)

1.5-30mm

Length

Random length:5-12m

Standard

API5L , ASTM A106 Gr.B, ASTM A53 Gr.B, ASTMA179/A192/A213/A210/370WP91,WP11,WP22             

GB5310-2009,GB3087-2008,GB6479-2013,GB9948-2013,  GB/T8163-2008, GB8162-2008,GB/T17396-2009

Material

20#,A53B, A106B, API 5L ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4 STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49

Surface

Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,ect

Certificates

API5L ISO 9001:2008 TUV SGS BV etc

Packaging

Loose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging, End with Plastic caps or as per requirement

Application

1. Fluid pipe

2. Power Plant 

3. Structure pipe
4. High and low pressure Boiler tube

5. Seamless pipe  /tube for petroleum cracking  

6. Conduit pipe 

7. Scaffolding pipe pharmaceutical andship,building etc.

Factory appearance and appearance

Shandong Yinghao Steel Co., Ltd. has tens of thousands of square meters of plant. The company has abundant capital, sufficient supply of goods and convenient transportation. The company adheres to the external market as the center, the internal management as the center, and takes the road of quality and efficiency development, and has achieved good economic and social benefits.
Company's products: stainless steel series, carbon steel series, aluminum series, galvanized, color coating, coil, seamless pipe, welded pipe, square pipe, round rod, profile, steel wire, steel strand and other products. Products sell well all over the country, and exported to the EU, the United States, Australia, Southeast Asia, the Middle East and other more than 50 countries, we can also customize products according to your requirements.
We have advanced processing equipment, such as automatic submerged arc welding machine, CNC cutting machine and other equipment, strict control of product quality. In line with the business principle of mutual benefit, we have won the trust of customers with professional service, quality products and competitive prices. We warmly welcome domestic and foreign customers to cooperate with us and achieve success together.
Welcome new and old customers to visit, negotiate, win-win cooperation!

 

 

Customer Photos 

Over the years, Shandong Yinghao Steel Co., Ltd. is committed to developing the international market. Our customers come from all over the world, such as Africa, Latin America, the Middle East, Southeast Asia, Europe, etc. We have established long-term and friendly cooperative relations with many customers from all over the world. Every year, there are many well-known buyers to visit our factory, and our products have been recognized by them.

 

 

 

Packing and delivery

We offer different modes of transport depending on the customer's destination: rail transport and ship transport.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards, Specifications, Package No., Contract No., Heat No., Weight of zinc film, Color, Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.

 

 

 

Application field

 

Equipment manufacturing and repair

Antibacterial stainless steel has the advantages of stainless steel and good antibacterial properties, and the demand in the field of kitchen equipment, work benches and utensils of the food industry, medical equipment, tableware and hanging towel holders in daily life, and brackets of refrigerators are increasing.

Auto industry

The main use of stainless steel is the exhaust system, which accounts for more than 1/2 of the total amount of automotive stainless steel, 80% of which is ferritic stainless steel.

Petrochemical industry including fertilizer industry

The demand for stainless steel pipes is extremely large. The industry mainly uses stainless steel seamless pipes. The

specifications include: 304, 321, 316, 316L, 347, 317L, etc., the outer diameter is around ¢18-¢610, and the wall thickness is 6mm-50mm. Left and right (generally the medium and low pressure conveying pipes with specifications above Φ159mm), the specific application fields are: furnace tubes, material conveying pipes, heat exchanger tubes, etc.

Fluid transport such as water and gas

Stainless steel tubes and water delivery equipment are the most advanced basic water purification materials in the world. They have strong corrosion resistance, and can not be compared with cast iron pipes, carbon steel pipes and plastic pipes.

 

 

 

PARTNER

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CERTIFICATE OF HONOR


The company's products cover stainless steel coil, stainless steel pipe, stainless steel bar and stainless steel profiles. The company has plasma cutting machine, coil flattening equipment, laser cutting machine, 8K mirror, frosted wire drawing, film and titanium plating equipment, which can be used for stainless steel material flattening, slitting, cutting plate, oil grinding wire drawing, whole roll oil film wire drawing, 8K mirror, titanium and other processing. 

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