Stkm 15A Stkm 15b Carbon Steel Pipe for Mechanical Pipe Used

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Special Purpose
• Section Shape: Round
• Model NO.: WAN 380
• Outer Diameter: 6 -150 mm
• Thickness: 0.5 - 10 mm
• Length: 1-6m
• Delivery Detail: 15-30 Days Since Order Confirmation.
• Surface: Black Painting, Oil Coated, etc
• Standard or Not: Standard
• Second or Nonsecond: Non Secondary
• Alloy or Not: Non-Alloy
• Price Term: Fob, CIF,CNF
• Payment: L/C, T/T
• Transport Package: in Bundle or as Requested
• Specification: ISO, TUV, AD,
• Trademark: Kingmetal
• Origin: China
• HS Code: 730490
• Production Capacity: 50000 Ton/Tons Per Month

Product Description

Standard: JIS G3445, ASTM A519, DIN 2391, EN 10305-1, EN 10297 etc. ....

Steel Grade: STKM 11A - STKM 20A, SCM415 -SCM440; ST35, ST37, St45, St52, E195, E235, E355, 30CrMo4, 35CrMo4,
SAE 1010, 1020, 1030,1045, 4130, 4140, 8620, 4340, 52100 etc. ...

Process: Cold Drawn, Cold Rolled, Hot rolled+Cold Drawn.
Surface: Black painted,oil coated, Smooth, Bright,etc.

Application:
The Automobile pipes are widely used for the auto/motorcycle/agricultural machine/railway project/low-high pressure boiler tubes/bearing tubes/ships manufacturing industries/oil and other high standards & demand processing & manufacturing industries.
 

DESIGNATION	SYMBOL	DESCRIPTION
Cold drawn(rolled)-Hard	+C/BK	No heat treatment after the final colddrawing.
Cold drawn(rolled)-Soft	+LC/BKW	After the final heat treatment,there is a suitable drawing pass.
Stress relieved after cold draw(rolled)	+SR/BKS	After the final cold drawing,there is a stress relief heat treatment in a controlled atmosphere.
Annealed	+A/GBK	After the final cold drawing,the tubes are annealed in a controlled atmosphere.
Normalized	+N/NBK	After the final cold drawing,in a controlled atmosphere.

Mechanical tube :
Standard :JIS G3445
Main steel tube grade :

STKM 11A ,STKM 12A, STKM 12B ,STKM 13A STKM 13B,STKM 13C
 

Grade		Designation	Chemical Composition %
			C	Si	Mn	P	S
11	A	STKM 11A	0.12 max.	0.35 max.	0.60 max.	0.040 max.	0.040 max.
12	A B C	STKM 12A STKM 12B STKM 12C	0.20 max.	0.35 max.	0.60 max.	0.040 max.	0.040 max.
13	A B C	STKM 13A STKM 13B STKM 13C	0.25 max.	0.35 max.	0.30 ~0.90	0.040 max.	0.040 max.
14	A B C	STKM 14A STKM 14B STKM 14C	0.30 max.	0.35 max.	0.30 ~1.00	0.040 max.	0.040 max.
15	A B	STKM 15A STKM 15B	0.25 ~0.35	0.35 max.	0.30 ~1.00	0.040 max.	0.040 max.
16	A B	STKM 16A STKM 16B	0.35 ~0.45	0.40 max.	0.40 ~1.00	0.040 max.	0.040 max.
17	A B	STKM 17A STKM 17B	0.45 ~0.55	0.40 max.	0.40 ~1.00	0.040 max.	0.040 max.
18	A B C	STKM 18A STKM 18B STKM 18C	0.18 max.	0.55 max.	1.50 max.	0.040 max.	0.040 max.
cite from JIS G3445-2004 edition

 

KINGMETAL STEEL INDUSTRY CO.,LTD ,is a professional company in manufacturing and saling steel pipes and pipe fittings
( tee, elbow ,reducer ,flanges). we are an old company in this area ,we start from 1989 and have rich exporting experience .

Cooperating with us you will feel easy and safe !