4. Mechanical Tubes/Pipes, description about ST52 seamless precision cold rolled steel pipe on China Suppliers Mobile

ST52 seamless precision cold rolled steel pipe

Standard & Material	Carbon Steel	ASTM A519 Standard	MT1010, MT1020, 1008, 1010, 1018, 1020, 1025, 1030, 1045, 1518
		JIS G3445 Standard	STKM11A STKM12A STKM12B STKM12C STKM13A STKM13B STKM13C STKM14A STKM14B STKM14C STKM15A STKM15C STKM16A STKM16C STKM17A STKM17C STKM18A STKM18B STKM18C STKM19A STKM19C STKM20A
		JIS G3473 Standard	STC370, STC440, STC510A, STC510, STC540, STC590A, STC590B
		DIN 2391 Standard	St 35, St45, St52
		EN 10297-1 Standard	E235, E275, E315, E355, E470
		EN 10305-1 Standard	E215, E235, E355
		EN 10305-4 Standard	E215, E235, E355
		BS 6323-3 Standard	HFS 3, HFS 4, HFS 5, HFS 8
		NF A49-311	TU 37-b, TU 52-b, TU 56-b, TU XC35
	Alloy Steel	ASTM A519 Standard	1345, 3140, 4130, 4135, 4140, 4150, 4320, 4340, 5120, 5130
		JIS G3429 Standard	STH11, 12 STH21, 122 STH31
		JIS G3441 Standard	SCR420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM440TK
	Stainless Steel	ASTM A511 Standard	MT304, MT304L, MT310S, MT316, MT316L, MT317, MT321, MT347, MT403, MT410, MT431
		ISO Standard	NACE MR-0175
Size		Size Range		Tolerance
	OD	6-325mm		-0.035 -- +0.045mm
	ID	2-250mm		±0.035mm
	WT	1-32mm		depends on sizes
	Length	random or fixed length		+0-3.5mm
	Straightness	0.15:1000, 0.4:1000, 0.5:1000 1:1000 or customized
	Surface Roughness	Ra 0.02—0.4μm

Widely used in Machinery, Automotive & Aerospace Industry,Bicycles, Furniture, Apparatus, other mechanical parts and structures and so on.

1. Q: What’s the delivery condition of seamless cold drawn mechanical tubing?

1)BK (+C) Cold finished/hard (cold finished as drawn).

2) BKW (+LC) Cold finished/soft

3) BKS (+SR) Cold finished/stress relieve annealed.

4) GBK (+A) Annealed.

5) NBK (+N) Normalized.

2. Q: What’s the surface roughness of seamless mechanical tubing you could do ?

A:Surface Roughness: a=0.02~0.4micron or depends on the customer’s requirement.

3.Q: How’s the straightness of cold drawn mechanical tubes?

A: Straightness:0.3~0.8mm/1000mm

4.Q: Shall we get the discount if repeating our orders?

A: Of course, biggest discount will be shared with the repeat customers.

Place of Origin	Tianjin, China
Certification	ISO9001
Thickness	1, 32
Application	Hydraulic cylinder tube & pipe
Surface Treatment	BK, NBK, BKS,
Technique	Cold Drawn
Standard
Alloy Or Not	Non-alloy
Grade
Secondary Or Not	Non-secondary
Special Pipe	cold drawn precision seamless steel pipe
Section Shape	Round

ST52 seamless precision cold rolled steel pipe