DIN 2391-1 seamless steel pipes/cold drawn steel pipe

                              DIN2391 cold drawn Seamless Steel Tube/pipe for sale   Product Description Standard:DIN 2391-1 
OD:15-110mm,WT:1-12mm 
Length:5-12m random or be fixed as customers' requests DIN2391-81 seamless precision steel tubes Field of application This standard defines the technical delivery conditions for seamless precision steel tubes according to DIN 2391 which are made from the steel grades listed.Tubes according to this standard are mainly used where accuracy to dimension and,possibly,small wall thicknesses and good surface condition are required. Chemical composition(%)

Grade	Mfg. Process	Chemical composition(%)
		C	Si	Mn	P	S	Ni	Cr	Mo	Others
St30Si	S	0.10Max	0.30Max	0.55Max	0.04Max	0.04Max	-	-	-	-
St30A1	S	0.10Max	0.05Max	0.55Max	0.04Max	0.04Max	-	-	-	Al deoxydized
St35	S	0.17Max	0.35Max	0.40Max	0.05Max	0.05Max	-	-	-	-
St45	S	0.21Max	0.35Max	0.40Max	0.05Max	0.05Max	-	-	-	-
St52	S	0.22Max	0.55Max	1.60Max	0.05Max	0.05Max	-	-	-	-

 
EN 10210:Seamless structural steel pipes  

Product Name	Executive  Standard	Specification Range (mm)	Steel Grade
Cold drawn seamless  precision tube	DIN2391	15-110mm	ST35,ST37.4,ST44, ST45,ST52

  Tolerance Table of Steel Tube:

NAME	Scope (mm)	DIN series(mm)
Out Diameter	3-30	±0.08
	31-40	±0.15
	41-50	±0.20
	51-60	±0.25
Wall Thickness	1-14	±10%

  Mechanical Property: 

Standard	Steel Grade	Mechanical Performance
		GBK(+A)		NBK(+N)
		Tensile Strength (Rm mpa)	Elongation rate (A5 %)	Tensile Strength (Rm mpa)	Yield Strength  (Reh mpa)	Elongation rate (A5 %)
DIN 2391	St35	≥315	≥25	346-478	≥235	≥25
	St37	≥315	≥25	346-478	≥235	≥25
	St37.4	≥315	≥25	346-478	≥235	≥25
	St45	≥390	≥21	440-570	≥255	≥21
	St44	≥390	≥21	440-570	≥255	≥21
	St52	≥490	≥22	490-630	≥355	≥22

    Steel Grade: 
ASTM A519: 1010-1045, 4130-4142, 5135
GB/T8162: 10, 20, 35, 45, 16Mn, 12C rMo, 15CrMo, 12C rl MoV
JIS G3441: SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK 
JIS G3444: STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17, STKM 18
STKM 19, STKM 20
DIN 2391: St30Si, St30A1, St35, St45, St52
EN10305: E235, E355 
EN 10210: S235JRH; S275J0H, S275J2H; S355J0H, S355J2H; S275NH, S355NH; S275NLH, S355NLH Product Overviews    
          Packaging & Shipping   Technology                      

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