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St45 20# Mild Cold Drawn Steel Tube Round For Hydraulic Cylinder , DIN 2391 EN 10305

Basic Information
Place of Origin: Jiangsu China (Mainland)
Brand Name: WUXI SYLAITH
Certification: ISO9001 14001 BV TUV PED DNV etc
Model Number: St45 20#
Minimum Order Quantity: 1 MT
Price: NEGOTIABLE
Packaging Details: Exporting package/wooden box package/Or per customers’ requirement
Delivery Time: 3-15 days
Payment Terms: 30%T/T in advance or 100% L/C at sight
Supply Ability: 8000MT/Month
Detail Information
Features: Thick Wall Application: Hydraulic Cylinder|Chemical
Delivery Condition: BK|BKS|NBK|Cold Finished|Cold Drawn|Stress-relieved Grade: ST52|E355|St45|SAE1026|20#|27SiMn
Product Name: Mild Steel Tubing Section Shape: Round
Standard: SAE1026|DIN 2391|EN 10305 Technique: Seamless|Cold Drawn|Cold-Drawn
High Light:

mild steel tube

,

steel round tube


Product Description

St45 20# Mild Cold Drawn Steel Tube Round For Hydraulic Cylinder , DIN 2391 EN 10305

 

 

Quick Detail

 

Products: Hydraulic cylinder tubes / Precision steel tube

Standard: DIN 2391 / EN 10305 /GB8713-88 / GB/T3639-2000

Grade: St52 / E355 / St45 / SAE1026 / 20# / 27SiMn
SIZE:(mm)

OD: 45mm ~ 500mm
WT: 3mm ~ 50mm

 

Description

 

1. Variety

 

Processing form

I.D.mm

Length

Straightness

I.D.tolerance

I.D.Roughness(RA)

Cold-rolled

30-100

≤24M

 

0.3-1.0/1000

H8-H10

0.4-1.6um

Cold-drawn

30-250

≤24M

H8-H10

0.8-1.6um

Hone

40-500

≤24M

H8-H9

0.4-0.8um

SRB

50-250

≤24M

H8

0.1-0.4um

 

2. Material Specification and Ref. Document  

ST52,BK+S OR NBK,DIN2391 

OD:45-50mm WT:3-50mm

 

3. Chemical Compisition (%)

 

Steel grade

Chemical composition,%

C

Si

Mn

P

S

Cr

St45

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.250

ST52(E355)

≤0.22

≤0.55

≤1.6

0.025

0.025

0.25

SAE1026

0.22-0.28

0.15-0.35

0.60-0.90

0.040

0.050

/

27SiMn

0.24-0.32

1.10-1.40

1.10-1.40

0.035

0.035

0.300

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.250

 

4. Mechanical Properties

 

Delivery condition

BK

Cold finished(hard)

BKS

Cold drawn and stress-relieved

Steel grade

Rm Mpa

Elongation
A5(%)

Rm MPa

ReH MPa

Elonggation
A5(%)

ST45

≥550

≥5

≥520

≥375

≥15

ST52(E355)

≥640

≥5

≥600

≥520

≥14

SAE1026

≥640

≥5

≥600

≥510

≥15

16Mn

≥640

≥5

≥600

≥520

≥14

20#

≥550

≥8

≥520

≥375

≥15

 

5. Supply Condition

  Cold drawn seamless steel tube, stress relieved and honed or skived roller burnished

 

6. Surface Roughness

 Ra = 0.4~0.8 Micron

 

7. Tolerances of Inner Dia.

 

 

Size of I.D

I.D Tolerance

Tolerance of wall thickness

H8

H9

H10

 

 

±7.5%

>210mm ±10%

30

+0.0330

+0.0520

+0.0840

>30-50

+0.0390

+0.0620

+0.1000

>50-80

+0.0460

+0.0740

+0.1200

>80-120

+0.0540

+0.0870

+0.1400

>120-180

+0.0630

+0.1000

+0.1600

>180-250

+0.0720

+0.1150

+0.1850

>250-315

+0.0810

+0.1300

+0.2100

 

8. Tolerance on Outer Dia. 

 ≤ Dia 40   +/-0.2 mm

 ≥ Dia 40 ≤ Dia 100   +/-0.3mm

 ≥ Dia 100   +/-0.5mm

 

9. Appearance

 Tube shall have a smooth internal and external surface consistent with cold working process, tube inner surface should be free from rust, scratches and other surface irregularities.

10. Scope

 Hydaulic cylinder tube for swivel crane, injection machine and construction machine application

 

Applications:

 

Used in hydraulic system,nested card connector (pipe joints) with matching,,automobile and in the occasion where the high precision,brightness,cleanness and mechanical properties of the tube are required.

 

 

Product Photo

 

St45 20# Mild Cold Drawn Steel Tube Round For Hydraulic Cylinder , DIN 2391 EN 10305 0

 

Factroy Pictures

 

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 1

 

Pipe & Tube Processing

 

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 2

 

Steel Pipe & Tube Application

 

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 3

 

Packaging and Shipping

 

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 4

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 5

 

Certificates

 

BS 6323 DIN 2391 Precision Steel Tube Carbon Steel Seamless Tube 6

 

FAQ

 

Q1: ARE YOU FACTORY OR TRADER?
A1: Wuxi Sylaith Special Steel Co.,Ltd is a manufacturer of steel pipe and tube since 2010.

We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.

 

Q2: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A2: Seamless Stainless Steel Pipe / Tube, Seamless Carbon Stainless Steel Pipe /Tube,Galvanized Steel Tube witn any Shape and Welded pipes can also be available.

 

Q3: HOW TO GET A SAMPLE?
A3: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.

 

Q4:CAN YOU PRODUCE THE PRODUCTS ACCORDING TO MY OWN DRAWINGS?
A4: Yes, we can produce the products according to your drawings that will be most satisfy you.

 

Q5: HOW TO VISIT YOUR FACTORY?
A5: Most of the main cities have flights to Shanghai; you can take flight to Shanghai Putong/Hongqiao International Airport.
If you come from Hongkong, it will take 2 hours by flight (every day 5 flight around noon time).

 

 

 

Contact Details
Deasy

Phone Number : 86-13338118310

WhatsApp : +8613338118310