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CHANGZHOU RUIYUAN STEEL TUBE CO., LTD.
CHANGZHOU RUIYUAN STEEL TUBE CO., LTD. We are leading manufacturer of CDS and HFS pipes and Tubes.
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High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm

High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm

Brand Name : CHANGZHOU RUIYUAN
Certification : ISO9001, ISO14001, PED, OHSAS 18001
Place of Origin : JIANGSU, CHINA
MOQ : 0.1 MT
Payment Terms : T/T, L/C, D/P, CASH, D/A, Western Union
Supply Ability : 6000MT/Month
Delivery Time : 20~30 days after order
Packaging Details : Ends caps, Hexagonal Bundles with steel strips and plastic bags wrapping outside/Wooden box/Steel frame/Or as per client’s requirement.
STANDARD : DIN
SHAPE : CIRCULAR
PLACE OF ORIGIN : JIANGSU, CHINA
SECONDARY OR NOT : BRAND NEW
PROCESSING : SEAMLESS
SURFACE : BARE, OIL, VARNISH, BLACK, LUBRICATION
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High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm


Specifications:


Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling

Ends: PE, ends caps

Marking: as per requirement

Delivery Condition: Annealed/Normalized/Tempered

Size:(mm)
OD: ≤ 114.3 mm

or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length

Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement


CHEMICAL COMPOSITION (%):


CHEMICAL COMPOSITION (CAST ANALYSIS) IN%

Grade

C≤

Si≤

Mn

P≤

S≤

ST 37.4

1.0255

0.17

0.35

≥ 0.35

0.040

0.040


MECHNICAL PROPERTIES:


STEEL GRADE

Tensile Strength

σb(Mpa)

N/mm2

Yield Strength σs(Mpa)

(WT in mm)

Elongation δ(%)

(L=5do)

IMPACT

(DVM—TEST SAMPLE)

≤16

>16≤40

>40≤65

L

T

L

T

(MIN) N/mm2

% (MIN)

δ (MIN)

ST 37.4

1.0255

350-480

235

225

215

25

23

43

27


DIMENSION TOLERANCE:


OD (mm)

Permissible daviation in OD

Tube Barrel and tube ends

At tube ends, subject to particular agreement 1)

≤ 100

±1% (value up to ±0.5mm are permitted)

± 0.4 mm

100 − 200

±1%

± 0.5%

> 200

±1%

± 0.6%

Length Tolerance (mm)

≤6000

0 - +10

6000<L≤12000

0 - +15

>12000

By Agreement


INSPECTION AND TEST:


CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening,impact, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.


Description:


DIN1630 is the standard for high performance seamless steel pipe. It applies to seamless circular tubes and pipes made of unalloyed steels. These pipes are pradominantly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes. They are designed to meet high performance requirements. Normally, there are no limiting values for the maximum permissible working pressure of these tubes. The permissible working temperature shall not exceed 300℃.

Top quality products


Applications:


1. chemical plant,

2. vessels,

3. pipework,

4. for general mechanical engineering purposes.

Designed to meet high performance requirements


Competitive Advantage:


Try our best to reduce the costs during our production. Try our best to give biggest benefit to our customer!



Product Tags:

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