2014年12月1日星期一

Product: Hot Dip Galvanized Steel Coil

1. Standard: JIS G3302, JIS G3313, ASTM A653, GB/T2518-88, GB11253-89, ASTM A1008-2000 etc.
2. Material: SGCC, DC51D, DX51D, DX52D, SGCD, Q195, Q235, SGHC, DX54D, S350 GD, S450 GD, S550 GD etc.
3. Thickness: 0.1~4.0mm
4. Width: 600~1500mm
5. Spangle: Zero, Small, Big, Regular
6. Zinc Coating: 40~275g
7. Surface Treatment: chromated and oiled, chromated and non-oiled, skin pass, dry etc.
8. Coil Weight: 3~8MT
9. Coil ID: 508/610mm
10. Application: used as final products and basic plates of color coated steel coils and widely applied in construction, home appliances, decoration, ect.



2014年11月21日星期五

How to choose appropriate rebar for a concrete structure?

When it comes to construction and engineering, rebar is always the one you can steer clear of. And it is impossible to use top class rebar in every project. Civil engineers can always choose appropriate rebar from many kinds of them to design a concrete structure. Black steel rebar is the most commonly used one, which is applied to nearly all standard buildings, except marine environments. Epoxy-coated rebar has medium price. The most expensive kind of rebar is stainless steel rebar. It can be used in MRI rooms as it enjoys excellent anti-corrosion feature.


• Black Steel Rebar 
o Cheapest kind of rebar
o Excellent where there is no moisture
o Most common rebar in buildings
o Easy to rust



• Epoxy Coated Rebar 
o More expensive than black steel rebar
o Best used in marine environments such as dock pilings
o Easily damaged, which could isolate and magnify any corrosion
o It is difficult to bond to concrete
o Far less susceptible to rust



• Stainless Steel Rebar 
o Very expensive
o Good corrosion resistance
o Can withstanding shipping, handling, bending
o Comes in magnetic or non-magnetic alloy





http://www.boxingwww.com/Newsshow-732.html



2014年10月17日星期五

Product: Gallvanzed steel coil

To get galvanized steel coil, steel sheet is sunk into a tank filled with melted zinc, and get a layer of zinc coat on the surface. Galvanized steel is steel that has been treated with zinc to increase its durability and weather resistance. Zinc-coating is a commonly used and economical method for anticorrosion.  

1. Material: DX51D,DX52D,DX53D,DX54D 
2. Width: 800-1500mm
3. Thickness: 0.05~4mm
4. Zinc Coating: Z60~Z250 (g/m2)
5. Weight of Coil: 3-6 MT per coil
6. Inside Diameter: 508mm 



2014年9月24日星期三

Product: Asymmetric Steel Angle

Material: Q235B,Q345, SS400, ST37-2, ST52-3
Standard:ASTM,GB,JIS

Size Details:



asymmetric steel angle



               

Product: Symmetric Steel Angle

Size: 20*20mm-250*250mm
Surface treatment: Bare, galvanized coated or as customer's requirements.
Standards: STM,EN,GB,JIS.

Material:

ASTM      A106 (A.B)/A53(A.B)/A36/SA36/A283/A573/A572 Gr50
GB/T700   10#/20#/45#/16Mn
JIS        SS330/SS400/SS490/SS540/SM400
EN10025 S235JR/S235J0/S235J2/S275JR/S275J0/S275J2
DIN17100  St33/St37/St37-2/St37-3/St44/St45-8/St52

Size Details:




symmetric steel angle











2014年9月15日星期一

Product: cold draw stainless steel wire rod






Diameter: 5.5mm-12mm
Material: Q195-Q235 & SAE1008-SAE1018
Application: Construction 
Material: Q195-Q235 & SAE1008-SAE1018 

1. Diameter: 5.5mm-12mm
2. Material: SAE1008 -SAE1018
3. Coil weight: 1.8-2.1ton
4. Coil OD: 1.1M, Coil Length: 1.5M
5. Applicant: wire drawing, welding electrode, nail
6. Payment term: TT or L/C at sight

Below please kindly check our chemistry of the material based on SAE1006B and SAE1008B for your information:

Grade
Chemical Composition (%)
C
Mn
Si
S
P
B
SAE1006B
0.03~O.07
≤0.32
≤0.30
≤0.045
≤0.040
>0.0008
Mechanical properties
Yield strength(N/mm2)
Tensile strength(N/mm2)
Elongation(%)
250-280
350-380
≥32

Grade
Chemical Composition(%)
C
Mn
Si
S
P
B
SAE1008B
0.10max
0.3~O.50
0.15max
0.050max
0.040 max
0.0008 min
Mechanical properties
Yield strength(N/mm2)
Tensile strength(N/mm2)
Elongation(%)
≥195
315-430
≥30






2014年9月11日星期四

Product: F62 F72 F82 Ribbed Reinforcing Mesh

1. Standard :GB/T1499.3-2002,AS / NZS 4671: 2001,BS 4483:2005,A185-02
2. Shap: Rectangular rib mesh,square
3. Dimension: 2.4x4.8m, 2.4x6m,2x4m. other size pls check with us

      A)  AS / NZS 4671: 2001 

                RL1218, RL1118, RL1018, RL918, RL818, RL718  
                SL102, SL92, SL82, SL72, SL62, SL52, SL62H, SL52H

                L8TM3, L8TM4, L8TM5

      B)  BS 4483:2005

                A393,A252,A193,A142

                B131,B786,B508,B385,B283

                C785,C636,C503,C385,C283

                D98,D49    



2014年9月4日星期四

Performance of steel sector in China is weaker than expectation in August

The performance of steel sector in China is weaker than expectation in August. Reuters reported that Chinese steel futures kept declining on 1st September, with buyers concerned by persistent overcapacity problems. Economic data issued suggested that China's stimulus measures were no longer enough to offset declining investment in the property sector, which is suffering from overcapacity.

According to a private survey, China's factory sector growth fell to a three month low in August and China's official manufacturing purchasing manager's index also dipped over the month. The most traded rebar contract on the Shanghai Futures Exchange ended the morning at CNY 2,925 per tonne, down 0.4% to a new low. A manager with a Beijing based commodity trading house said that "I think people are mistaken if they think there is going to be a big recovery in September.


There is probably going to be more steel demand, and some restocking, but there is no solution to the overcapacity everywhere in housing, in iron ore, in steel products." Bank ANZ said in a note that despite the Friday increase the market remained pessimistic and steel mills were still only restocking sporadically. At the same time, steel production has remained close to an all time high, with many struggling mills worried that any decision to cut output would reduce their cashflow and put them at further risk of closure. The latest CISA figures showed that product inventories at steel mills reached 15.25 million tonnes in mid August, up 4.68% from the first 10 days of the month.



More articles:

2014年8月26日星期二

Post tensioning rock bolt

System Description:

The rock bolt for the prestressing of concrete manufactured by our company is a high tensile alloy steel bar which features a coarse right-hand thread over its full length and avarlable in two standard lengths, namely 9m and 12m,yet,special length is negotiable based on user’s demand subject to the maximum length of 18m..

The outline dimensions of the screw thread steel bars for the prestressing of .concrete manufactured by us accord with the regulation for the outline and dimension of screw thread steel bars for the prestressing of concrete provided by Highway LAYOUT Design Institute under the Ministry of Communication. And also according the user’s outline dimension to produced the screw thread steel bars.

Dimension Details

Related information:

2014年8月14日星期四

Product: Steel rebar for construction

For many years, we have dedicated in steel production and exporting conscientiously. Steel rebar and screw threaded steelbar are always our flag products. And below are the specification details of steel rebar we offering:

Standard
Grade
Yield Strength
Mpa
Tensile Strength
Mpa
Elongation%

BS4449:1997
250
250
295
22
460A
460
485
12
460B
460
500
15

GB1499.2-2007
HRB335/335E
335
455
17
HRB400/400E
400
540
17
HRB500/500E
500
630
16

ASTM A615
Grade40
280
420
12
Grade60
420
620
9
Grade75
520
690
7


JIS G3112-2004
SD295A
295
440-600
17
SD295B
295-390
440
17
SD345
345-440
490
19
SD390
390-510
560
17
SD490
490-625
620
13
Diameter(mm)
Φ6 ,Φ8,Φ10,Φ12,Φ13,Φ14,Φ16,Φ18,
Φ20,Φ22,Φ25,Φ28,Φ32,Φ36,Φ40,Φ50
Length(m)
Unfolded / Straight Bundles weighing up to 2 Metric Tons 
lengths ranging 12 Meters or customized
U Shaped folded Bundles up to 2 Metric Tons 
lengths ranging 12 Meters 
Rounded Coils up to 2 Metric Ton 
Coils for Bending / Cutting Machine use.
Surface finished
Screw-thread
Epoxy coating
Galvanized coating
Production facility
Imports of production equipment from Italy
Production capacity
90,000 MT/month
Payment term
T/T or 100% L/C at sight 
Package
By bundles. One bundle about 2-3tons. Standard seaworthy package.



Our website: www.boxingwww.com
             www.sjtrockbar.com
             shengjintai.en.alibaba.com