Chemical Composition:

Grade	Deliver Condition	Chemical Compostion ％
		C	Si	Mn	P	S
		Max	Max	Max	Max	Max
J55	Nornalization Rolling	--	--	--	0.03	0.03
K55	Nornalization Rolling	--	--	--	0.03	0.03
N80-1	Nornalization Rolling	--	--	--	0.03	0.03

Mechanical Property:

Grade	Deliver Condition	Mechanical Properties
		Yield Strength	Tensile Strength	elongation
		Min Mpa	Min Mpa	min（%）
J55	Nornalization Rolling	379-552	517	API 5L
K55	Nornalization Rolling	379-552	655
N80-1	Nornalization Rolling	552-758	689

 

Product name	Material	Standard	Size(mm)	Application
Low temperature tube	16MnDG 10MnDG 09DG 09Mn2VDG 06Ni3MoDG ASTM A333	GB/T18984-2003 ASTM A333	OD:8-1240*WT:1-200	Apply to - 45 ℃ ~ 195 ℃ low temperature pressure vessel and low temperature heat exchanger pipe
High-pressure boiler tube	20G ASTMA106B ASTMA210A ST45.8-III	GB5310-1995 ASTM SA106 ASTM SA210 DIN17175-79	OD:8-1240*WT:1-200	Suitable for manufacturing high pressure boiler tube, header, steam pipe, etc
Petroleum cracking tube	10 20	GB9948-2006	OD: 8-630*WT:1-60	Used in oil refinery furnace tube, heat exchanger tube
Low medium pressure boiler tube	10# 20# 16Mn,Q345	GB3087-2008	OD:8-1240*WT:1-200	Suitable for manufacturing various structure of low and medium pressure boiler and locomotive boiler
General structure of the tube	10#,20#,45#,27SiMn ASTM A53A,B 16Mn,Q345	GB/T8162-2008 GB/T17396-1998 ASTM A53	OD:8-1240*WT:1-200	Apply to the general structure, engineering support, mechanical processing, etc
Oil casing	J55,K55,N80,L80 C90,C95,P110	API SPEC 5CT ISO11960	OD:60-508*WT:4.24-16.13	Used for extraction of oil or gas in oil Wells casing, used in oil and gas well sidewall

  Application:   RFQ: Q1: Are you manufacture or Trader A: We are both manufacture and trader Q2: Can you offer sample? A: Sample small one can be offered by free, but buyer should pay the express fee Q3: Can you offer processing service? A: We can offer cutting, drilling, painting, coat powder etc... Q4: What is your advantage on steel? A: We can customize steel structure accoridng to buy's drawings or request. Q5: How about your logistic service? A: we have professional logistic team who has rich experience on shipping, can offer the steady and quality ship line.