St52 NBK Status Precision Stainless Tubing Cold Drawing

St52 NBK Status Precision Stainless Tubing Cold Drawing

Product Details:

Place of Origin: CHANGZHOU, CHINA
Brand Name: Joyruns
Certification: ISO9000
Model Number: Seamless precision NBK steel Tube

Payment & Shipping Terms:

Minimum Order Quantity: 2TONs
Price: Negotiable
Packaging Details: Exporting package/wooden box package
Delivery Time: 30DAYS
Payment Terms: TT OT 100% LC AT SIGHT
Supply Ability: 1000Ton/month
Get Best Price Contact Now

Detail Information

Standard: DIN 2391 / EN 10305-1 / EN10305-4 Grade: ST35, ST37.4, ST37, ST45, ST52, ST52.4, E235, E255, E355.
Delivery Condition: NBK, Bright Anaerobic Normalizing. OD. Range: 3.16mm – 114.3mm
Wall Thickness: 0.5mm-15mm Length: Max Length 20M
High Light:

NBK status precision stainless tubing

,

St52 precision stainless tubing

,

St52 erw precision tubes

Product Description

Cold Drawn Carbon Steel Seamless Tubing DIN2391 St37.4 NBK status

Precision Seamless Steel Tube: Norm DIN2391 EN10305, High quality carbon precision steel tubes St35 St37.4 St52, cold drawing, bright heat treatment without oxidation (NBK status), non-destructive testing, cleaning, phosphating, anti-rust oil dipping, the application for machine tools industry, construction machinery, ship building industry hydraulic system, automotive steel tube, and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.

 

 

Products Specification :
Production Standard :DIN 2391/DIN 1629/EN 10305/ASTM A179/JIS G3445
Finished Condition : NBK(+N) / GBK(+A) / BK(+C) / BKW(+LC) / BKS(+SR)
Material: ST35(E235) / ST45(E255) / ST52(E355) / ST37.4

 

Size Range and Tolerance
OD Size Range (mm) DIN tolerance Special tolerance Special high precision
ø4~30mm ±0.08mm ±0.05mm ±0.03mm
ø31~40mm ±0.15mm ±0.05mm ±0.03mm
ø41~50mm ±0.20mm ±0.08mm ±0.03mm
ø51~60mm ±0.25mm ±0.10mm ±0.03mm
ø61~70mm ±0.30mm ±0.15mm ±0.05mm
ø71~80mm ±0.35mm ±0.20mm ±0.05mm
ø81~90mm ±0.40mm ±0.25mm ±0.05mm
ø91~100mm ±0.45mm ±0.35mm ±0.05mm

 

Wall Thickness Range DIN tolerance Standard tolerance Special high precision
0.5~15mm ±10% ±5~8% ±5~7%

 

Size List : all dimensions are by metric.
OD×WT OD×WT OD×WT OD×WT OD×WT OD×WT OD×WT OD×WT
Ø4×0.5 Ø12×1.5 Ø16×2.5 Ø22×1.5 Ø28×2.0 Ø34×2.0 Ø38×3.0 Ø48×3.5
Ø4×1.0 Ø12×2.0 Ø16×3.0 Ø22×2.0 Ø28×2.5 Ø34×2.5 Ø38×3.5 Ø48×5.0
Ø5×1.0 Ø12×2.5 Ø18×1.0 Ø22×2.5 Ø28×3.0 Ø34×3.0 Ø38×4.0 Ø50×5.0
Ø6×1.0 Ø14×1.0 Ø18×1.5 Ø22×3.0 Ø28×3.5 Ø34×3.5 Ø38×5.0 Ø50×6.0
Ø6×1.5 Ø14×1.5 Ø18×2.0 Ø22×3.5 Ø28×4.0 Ø34×4.0 Ø38×6.0 Ø60×3.0
Ø6×2.0 Ø14×2.0 Ø18×2.5 Ø22×4.0 Ø30×1.5 Ø34×4.5 Ø40×4.0 Ø60×5.0
Ø8×1.0 Ø14×2.5 Ø18×3.0 Ø22×5.0 Ø30×2.0 Ø34×5.0 Ø42×2.0 Ø60×6.0
Ø8×1.5 Ø14×3.0 Ø19×2.0 Ø24×2.0 Ø30×2.5 Ø35×1.5 Ø42×3.0 Ø60×7.0
Ø8×2.0 Ø15×1.0 Ø20×1.0 Ø25×2.0 Ø30×3.0 Ø35×2.0 Ø42×3.5 Ø60×8.0
Ø8×2.5 Ø15×1.5 Ø20×1.5 Ø25×2.5 Ø30×3.5 Ø35×2.5 Ø42×4.0 Ø65×5.0
Ø9×1.5 Ø15×2.0 Ø20×2.0 Ø25×3.0 Ø30×4.0 Ø35×3.0 Ø42×4.5 Ø65×8.0
Ø10×1.0 Ø15×2.5 Ø20×2.5 Ø25×4.0 Ø30×5.0 Ø35×3.5 Ø42×5.0 Ø70×4.0
Ø10×1.5 Ø15×3.0 Ø20×3.0 Ø27×3.0 Ø32×2.0 Ø35×4.0 Ø42×6.0 Ø70×5.0
Ø10×2.0 Ø16×1.0 Ø20×3.5 Ø27×3.5 Ø32×2.5 Ø35×4.5 Ø45×3.0 Ø70×8.0
Ø10×3.5 Ø16×1.5 Ø20×4.0 Ø27×4.0 Ø32×3.0 Ø35×5.0 Ø45×6.0 Ø90×5.0
Ø12×1.0 Ø16×2.0 Ø22×1.0 Ø28×1.5 Ø32×4.0 Ø38×2.5 Ø48×3.0 Ø114×4.0

 

Features:

Carbon Steel Seamless Tubes 

● DIN highly accurate, cold drawn and bright carbon steel seamless tube is used as the tube to be phosphated. The phosphated is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent from the rust. The caps are covered at two ends of tube to prevent from the dust.
● High accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall.
● The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized.
● The color of NBK tube is Bright Black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.


EN 10305-1 Chemical composition(%) 

Steel grade
Name

Steel
Number

C(% max)

Si(% max)

Mn(% max)

P(% max)

S(% max)

E215

1.0212

0.10

0.05

0.70

0.025

0.015

E235

1.0308

0.17

0.35

1.20

0.025

0.015

E355

1.0580

0.22

0.55

1.60

0.025

0.015

 

EN 10305-1 Mechanical and technological properties 

Yield strength
(min Mpa)
Tensile strength
(min Mpa)
Elongation
(min %)
215 290-430 30
235 340-480 25
355 490-630 22

 

Condition on delivery of EN 10305-1:

Term

Symbol

Explanation

Cold-finished/hard
(cold-finished as-drawn)

BK

No heat treatment after the last cold-forming process. The tubes, therefore, have only low deformability.

Cold-finished/soft
(lightly cold-worked)

BKW

After the last heat treatment, there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.

Annealed

GBK

After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.

Normalized

NBK

The tubes are annealed above the upper transformation point in a controlled atmosphere or under a vacuum.

 

St52 NBK Status Precision Stainless Tubing Cold Drawing 0   St52 NBK Status Precision Stainless Tubing Cold Drawing 1   St52 NBK Status Precision Stainless Tubing Cold Drawing 2

 

St52 NBK Status Precision Stainless Tubing Cold Drawing 3      St52 NBK Status Precision Stainless Tubing Cold Drawing 4

St52 NBK Status Precision Stainless Tubing Cold Drawing 5

Want to Know more details about this product
I am interested in St52 NBK Status Precision Stainless Tubing Cold Drawing could you send me more details such as type, size, quantity, material, etc.
Thanks!
Waiting for your reply.