EN10305-1 EN10305-4 Round Precision Steel Tube / DIN 2391 St30Si Annealed Steel Tube

Quick Detail:

Standard: DIN 2391  EN10305-1, EN10305-4, BS 6323,  ISO 8535

Grade: St 30 Si / St 30 Al / St 35 / St37 / St37.4 / St45 / St 52 / St52.4 / E215 / E235 / E355
Size:(mm)

Out Dimensions: 6 mm ~ 350 mm
Wall Thickness: 0.8 mm ~30mm
Length: Fixed(6m,9m,12,24m) or normal length(5-12m)   

Description:

Precision steel tube 
Precision in size,Bright for the surface, high ability of mechanical performance  

Standard: DIN 2391, EN10305-1, EN10305-4, BS 6323,  ISO 8535

STEEL GRADE: ST30Si, ST30Al, ST35, ST37, ST37.4, ST45, ST52, ST52.4, etc

SURFACE TREATMENTS

1. Bare Tube (No coating): Bright and smooth, Surface Roughness both inner and outer surface 

0.2Ra Maximum for special requirement

2. Surface Coating

 A. Silver galvanized

 B. Yellow galvanized

 C. Olive green coated

Layer thickness: 8-20um, Salty Spray Test: 48-150 hours

3.  Black phosphate

APPLICATIONS

1. Automotive fields

 A. Fuel injection lines/nozzles

 B. CNG (Compressed Nature Gas) tube-- Burst pressure: 1307Bar, Working Pressure: around 350bar

C. Drive transmission: Steering column elements

 D. Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts

2. Hydraulic Fields

A. Hydraulic circuits (HPL), pneumatic lines, and hydraulic suspension 

B. Hydraulic cylinders (HPZ)

Chemical Composition:

Steel grade		Chemical composition, as a percentage by mass
Symbol	Material number	C max.	Si max.	Mn	P max.	S max.
St 30 Si	1.0211	0.10	0.30	<=0.55	0.025	0.025
St 30 Al	1.0212	0.10	0.05	<=0.55	0.025	Mr. Charlie Zhu Tel: 86-25-58439035 Contact to this supplier Related Search Precision Steel Tube    Round Steel Tube    Round Welded Steel Tube    Stainless Steel Round Tube    Steel Tube    Annealed Steel    More>> Find more related products in following catalogs on Hisupplier.com Minerals & Metallurgy >> Magnetic Materials >> Magnetic Tools × Company Info Huacheng Industry Pipe Making Corporation. [China (Mainland)] Business Type:Manufacturer City: Nanjing Province/State: Jiangsu Country/Region: China (Mainland) View Contact Details You May Like: prev galvanized steel tubing Seamless Steel T... car stabilizer bar auto stabilizer bar mild steel pipe welded steel pipe seamless carbon steel pipe welded steel ... Seamless Alloy Steel Tube Round Steel Tu... steel u tube Heat-Exchanger U Tube seamless steel tubing Round Steel Tube Mechanical Steel Tube thin wall steel Tu... 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