Annealed DIN 2391 Cold Drawn Steel Tube High Precision For
Hydraulic Cylinder
Quick Detail
Standards: DIN2391 ST52 (16Mn)
Material Grade: 16Mn / 25Mn / 20# / 45# / 27SiMn / ST45 / ST52 /
E355 / A519 SAE1518 / A519 SAE1026 /
Size(mm):
ID :45mm – 500mm
WT:3mm – 50mm
Description
Standards: DIN2391 ST52 (16Mn)
(GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519)
Grade: ST52 (16Mn)
Inside Dimensions: 45mm ~ 500mm
Wall Thickness: 3mm ~ 50mm
Length: max 24000mm
Application: Hydraulic Cylinder
Packing: Beveled/black painting/ plastic caps/ in bundles/ steel
strips/ wooden protection
Inspection and Test: Chemical Composition Inspection, Mechanical
Properties Test(Tensile Strength, Yield Strength,Elongation,
Flaring, Flattening, Bending, Hardness, Impact Test),Surface and
Dimension Test,Nodestructive Test, Hydrostatic Test.
Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot
Blasting.
Mark: As per customers’ requested.
Delivery Condition:Annealed, Normalized, Normalized and Tempered.
Processing Range And Precision
Cold Drawn Tubes: ID:45mm-630mm Length:14,000mm Straightness:0.3-1.0 Precision:H8-H10 Roughness:Ra0.8-Ra1.6 | Honing Tubes: ID:25mm-500mm Length:10,000mm Straightness:0.3 Precision:H7-H8 Roughness:Ra0.2-Ra0.8 |
ID Tolerance of Precision Honed Tubes
SIZE of I.D | I.D.Tolerance | Tolerance of wall thickness |
H8 | H9 | H10 |
30 | +0.0330 | +0.0520 | +0.0840 | <120mm(O.D) ±5% ≥120mm(D.D) to 210mm ±7.5% >210mm ±10% |
>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 | +0.185 |
>250-315 | +0.0810 | +0.1300 | +0.2100 |
>315-400 | +0.0890 | +0.1400 | +0.2300 |
Mechanical Propety
Material: 20# 45#,16Mn St45, St52, 25Mn,27SiMn, SAE1026.SAE1518
etc.
STANDARD: GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519
Delivery condition | cold finished(hard)(BK) | cold drawn and stress relieved(BK+S) |
STEEL GRADE | Rm MPa | Elongation (%) | Rm MPa | ReH MPa | Elongation (%) |
20# | ≥550 | ≥ 8 | ≥ 520 | ≥ 375 | ≥ 15 |
45# | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 10 |
16Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
25Mn | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |
27SIMn | ≥ 800 | ≥ 5 | ≥ 760 | ≥ 610 | ≥ 10 |
ST45 | ≥ 550 | ≥ 5 | ≥ 520 | ≥ 375 | ≥ 15 |
E355(ST52) | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 520 | ≥ 14 |
SAE1026 | ≥ 640 | ≥ 5 | ≥ 600 | ≥ 510 | ≥ 15 |
Product Photo
Application
Packing & Delivery
Our Factory
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).
