En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance

Get high precision cold rolled seamless steel tubes with bright surface and tight tolerance from our factory. En10305/ DIN2391 standard. Order now!
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PRODUCTS DETAILS

Basic Info.

Usage
Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape
Round
Outer Diameter
8mm~140mm
Thickness
0.8mm~20mm
Length
6meters, 9meters, 12meters, Random Length
Surface
Annealing Bright, Phosphating
Tolerance of Size
+/- 0.05mm
Delivery State
Bk, Bks, Nbk, Bkw, Gbk
Transport Package
Bundled, Wrapped, Wooden Cased.
Specification
ASME, DIN
Trademark
Iron&steel
Origin
China
HS Code
73041990
Production Capacity
100 Tons Per Month

Product Description

En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm ToleranceQingdao Ironsteel International Trading Co., Ltd provide high quality, low priced Cold Rolled/Cold Drawn Seamless steel pipes.  Our factory founded in 2002, 15 advanced production lines can make full range sizes of cold rolled seamless steel pipes(by carbon steel/alloy steel materials) . We haveour own testing labs, equipped with all necessary testing equipments for chemical analysis, water pressure testing, X-ray inspection, ultrasonic testing, eddy current inspection, tension testing, chemical testing, and so on. 
High precision cold drawn seamless steel tube identifies the precision steel pipe with high dimension precision (inside diameter and outside diameter). Good surface finish, excellent roundness and straightness, and uniform wall occurrence. It can be very popular in mechanical structure and hydraulic gym equipment. This cold rolled or cold drawn seamless steel tube can greatly lessen machining time,  raise the product excellence.
https://qdironsteel.en.made-in-china.com/product/svInuZCdSekx/China-DIN-ASTM-API-Standard-Tandem-Rolled-Hot-Rolled-Seamless-Carbon-Steel-Pipe-25mm-610mm.html
Precise Cold Rolled Seamless Steel Pipe by DIN, ANSI, JIS standard.

OD: 8mm ~140mm
Wall thickness:  0.8mm ~20mm
Tolerance: +/-0.1mm

Technique: Cold drawing/Cold rolling
Standard: ASME SA192/SA179, GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material: 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, 40Cr, ST52, ST45, ST37.4, Q345B, etc
Delivery state: BK, BKW, NBK, GBK, BKS
Usage: widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel pipe:
1.       Smaller caliber
2.       Accept small qty order
3.       Good surface treatment
4.       The pipe with superior performance, suitable for mechanical making
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
Introduction of delivery state
Designation Symbol Description
Cold finished (hard) BK Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation
Cold finished (soft) BKW The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding).
Cold finished and stress-relleved BKS Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree
Annealed GBK The last cold forming process is followed by annealing in a controlled atmosphere
Normalized NBK The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere
Different kinds of delivery condition, surface of pipe can be bright, galvanized, phosphating, etc.
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
Preicision Seamless Tube Size List
OD (mm) Thickness (mm) OD (mm) Thickness (mm) OD (mm) Thickness (mm) OD (mm) Thickness (mm)
Φ13.1 1.5-3 Φ35.5 1.5-7 Φ46.1 1.5-10 Φ93 1.5-15
Φ19.25 1.5-5 Φ35.9 1.5-7 Φ47.8 1.5-10 Φ19-Φ121 1.5-15
Φ22 1.5-5 Φ36.6 1.5-7 Φ49.2 1.5-10    
Φ22.2 1.5-5 Φ38 1.5-8 Φ49.5 1.5-10    
Φ25 1.5-6 Φ38.4 1.5-8 Φ52.3 1.5-10    
Φ26.3 1.5-6 Φ40 1.5-10 Φ53.8 1.5-10    
Φ27 1.5-6 Φ40.2 1.5-10 Φ57 1.5-10    
Φ28 1.5-6 Φ40.9 1.5-10 Φ59 1.5-10    
Φ30 1.5-6 Φ41.3 1.5-10 Φ60 1.5-11    
Φ30.25 1.5-6 Φ41.6 1.5-10 Φ62.5 1.5-11    
Φ30.9 1.5-6 Φ42 1.5-10 Φ74 1.5-11    
Φ31 1.5-7 Φ43 1.5-10 Φ75 1.5-11    
Φ32 1.5-7 Φ44.5 1.5-10 Φ76 1.5-11    
Φ35 1.5-7 Φ45.8 1.5-10 Φ89 1.5-15    
Precise size controlling, make sure the tolerance no more than +/-0.1mm
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
Size tolerance 
OD Standard tolerance Special tolerance
Outer Diameter GB/T3639 DIN2391 EN10305 O D thickness
4mm-20mm ±0.10 mm ±0.08 mm ±0.08 mm ±0.05mm ±0.05mm
20mm-30mm ±0.10 mm ±0.08 mm ±0.08 mm ±0.08 mm ±0.08 mm
31mm-40mm ±0.15 mm ±0.15 mm ±0.15 mm ±0.10 mm ±0.08 mm
41mm-60mm ±0.20 mm ±0.20 mm ±0.20 mm ±0.15 mm ±0.15 mm
61mm-80mm ±0.30 mm ±0.30 mm ±0.30 mm ±0.20 mm ±0.20 mm
81mm-120mm ±0.45 mm ±0.40 mm ±0.40 mm ±0.30 mm ±0.30 mm
 
Chemical Composition of seamless steel pipe
Material Chemical composition (%)
C Mn P S Si Ni Cu
20#
AISI 1020
0.17~0.23 0.35~0.65 0.035 0.035 0.17~0.37 0.3 0.25
45#
ASTM1045, DIN45
0.42~0.5 0.5~0.8 0.04 0.045 0.17~0.37 0.25 0.25
Mechanical Properties of seamless steel pipe
Steel material Tensile Strength Mpa Yield strength Mpa Elongation
%
Hardness Straightness
20# 510 245 25 156HB 0.3~1.0
45# 647 355 16 HRC62 0.3~1.0
 Our factory takes more than 5 suare kilometers, 15 production lines can make different sizes cold rolled or cold drawn seamless pipes.
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance
Professional exporting team grarantee the top quality of packing and shipment service.
En10305/ DIN2391 High Precision Cold Rolled Cold Drawn Seamless Steel Tube with Bright Surface and +/-0.05mm Tolerance FAQ
Q: What's  your advantages
1. More nearly 20 years' experience of manufacturing and exporting work of COLD ROLLED SEAMLESS STEEL PIPES.
2. ISO/SGS/CE certified factory.
3. Special teams for sales, production, logistic and after sale services.
Q: Are you a manufacturer?
A: Yes, Our factory located in Shandong Province, China. The factory has 15 advanced production lines for the highest quality stainless steel pipe. You could definitely enjoy our direct factory price.
Q:Can we visit your factory ?
A: We welcome you come to China any time to visit our factory.

Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication, during production and before shipment, the third party inspection is also accepted.
Q:  What pre-sales service you provide?

A:  Prompt quotation, sample checking for free, 24 hours online communication, professional shipment freight calculation.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to
quantity.




 

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