Seamless DIN2391 St35.8 Carbon Steel Pipe Specification

• Customization: Available
• Type: Seamless
• Technique: Cold Drawn
• Model NO.: EL-SP
• Material: Carbon Steel
• Surface Treatment: Oiled
• Usage: Pipeline Transport, Machinery Industry, Chemical Industry
• Section Shape: Round
• Wt: 0.5-10mm
• Length: 1-6m
• Delivery Time: 15-30 Days After Down Payment
• Process: Cold Draw,Cold Rolled,etc.
• Alloy or Not: Non Alloy
• Standard or Not: Standard
• Secondary or Not: Non Secondary
• Price Term: Fob,CIF,CNF
• Payment: L/C,T/T
• Transport Package: in Bundle or as Requested
• Specification: 3.18-76.2m
• Trademark: Kingmetal
• Origin: China
• HS Code: 730419
• Production Capacity: 5000 Tons Per Month

Product Description

Material:10#(St37.4,St35,St37,E235),20#(St45,St44,E255),45#(Ck45),16Mn(St52),etc.


Standard:DIN2391,EN10305-1,GB/T3639,JIS G3101,JIS G3131,JIS G3106,DIN EN10025,GB/T700,ISO630, ISO3573,GOST380,ASTM A283M,


Application:Widely used in petroleum,foodstuff, chemical industry,construction, electric power,nuclear,energy, machinery,papermaking,ship building, boiler fields.


Chemical Composition

Grade	Mfg. Process	Chemical composition(%)
		C	Si	Mn	P	S	Ni	Cr	Mo	Others
St30Si	S	0.10Max	0.30Max	0.55Max	0.040Max	0.040Max	-	-	-	-
St30A1	S	0.10Max	0.05Max	0.55Max	0.040Max	0.040Max	-	-	-	Al deoxydized
St35	S	0.17Max	0.35Max	0.40Max	0.050Max	0.050Max	-	-	-	-
St45	S	0.21Max	0.35Max	0.40Max	0.050Max	0.050Max	-	-	-	-
St52	S	0.22Max	0.55Max	1.60Max	0.050Max	0.050Max	-	-	-	-

Mechanical Properties(Mpa)

Grade	Material number	Tensile Test MPa or N/mm2		Remaks (Similar to JIS)	Possibility Temperature
		Min Yield point	Tensile Strength
St30Si	1.0211	-	400Min	(STKM11)
		-	355Min
		-	285Min
		215	295~420
St30Al	1.0212	-	400Min	(STKM11)
		-	355Min
		-	285Min
		215	295~420
St35	1.0308	-	440Min	(STC38)
		-	370Min
		-	315Min
		235	340~470
St45	1.0408	-	540Min	(STKM13)
		-	470Min
		-	390Min
		255	440~570
St52	1.0580	-	590Min	(STKM19)
		-	540Min
		-	490Min
		350	490~630

Delivery Condition

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 vacuum.