Introduction:
Grinding rods can be customized according to customer's requirements
Automatic production line of grinding rods, which can be quenched and tempered automatically.
It is mainly used for metallurgical and mining, cement plant, thermal power, chemical industry, etc.
Features
High hardness, range is 45~55hrc
Low bending, less than 1.5mm/m
Dense microstructure , bainite +pearlite+carbide
Low breakage rate, more than 15000 times/ 3.5m
Low unit consumption, 40% reduction compared to unprocessed round steel
Standard:, astm, bs, din, gb, jis
Origin:tianjin china
Price: fob515-655
Thickness: 1.5mm-30mm
Width: 10mm-1000mm
Length: 4-12m
Material:q195, q235, q345, ss400, a36
Technique:hot rolled steel flat bar
Origin:tianjin, china(mainland)
Length:50mm-12000mm or as customer's requirement
Payment term:tt or l/c at sight
Delivery date:15 days after receiving the down payment or lc.
Tolerance:as the standard or as you requirements
Grade :q195, q235, q345, ss400, a36
Standards:jis, aisi, astm, gb, din, en
Surface treatment:mill finish galvanized
Packaging:standard exporting packing or as client's requirement
Certificate:bv, iso9001:2008 and mill test certificate
Moq:20tons
Round bars (dia 150mm-1500mm)
Flat and square on request.
Alloy Steel (Quenched and tempered or annealed, with certificate EN 10204/3.1 or 3.2. US tested):
25CrMo4, 42CrMo(S)4, AISI 4130, AISI 4140, AISI 4150, 34CrNiMo6, 30CrNiMo8, 31CrMoV9, 18CrNiMo7-6, 16MnCr(S)5, 20MnCr(S)5, etc.
Specifications
� grade: alloy steel
� standard: aisi, astm, bs, din, gb, jis
� od:10-500mm
� thickness: max:800mm
� width: 205mm~2300mm
� length: 1000mm~6000mm
� place of origin: china (mainland)
� model number: 1.7220 / scm430 / 30crmo4 / 4130 ; 4140/42crmo4/1.7225; en24 34crnimo6 1.6582 4340.
� application: mould steel
� technique: forged
� special use: mold steel , statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
� shape: round bars/flat bar/plate
� technology: hot rolled/forged/cl od d
raw
� heat treatment: annealing/q+t
� surface treatment:black/peeling/polishing/machined
� delivery condition: hot rolled or forged/ peeled or black surface/annealed or qt
� customer's logo: available
� test: sgs/ut100%/elements testing
� certificate: iso/mill certificate
� experience: ten years manufacturer experience
Features and Advantages of Grinding Steel Bar
Concentrating on wear-resistant grinding material for 30 years, Shandong Huamin Steel Ball Joint-Stock Co., Ltd is one of the largest grinding rod manufacture in China. We manufacture the product with the length of 2m to 7m and the diameter of 40mm to 140mm. The data is just for reference. The product can also be customized. After years of research and development, we finally develop the new-type steel grinding rod successfully. The newly developed product is characterized by low wear, unique chemical composition, high hardness of 45HRC to 55HRC, and strong toughness. Meanwhile, via the quenching and high temperature tempering treatment, the internal stress is removed. The product has good straightness, and won't break, bend and come out with two tapering ends. The economic benefit is much in evidence. a. The blanking of the steel grindng bar is implemented via the sawing machine. The dimensional tolerance would adide by the requirements of the order. After the implementation of blanking, the two ends of the raw material are polished into the R arc via the polishing machine. b. The surface of the product for the rod mill cannot have the crack, overburning and fissure visible to the naked eyes.
c. The nonstraightness of the product is less than 0.2%. The diameter tolerance ranges from +0mm to -1.5mm. The length tolerance is fro +0mm-25mm. The fracture should be less than 3%.
Size of AISI A2 (Can be Customised)
Round Bar Diameter(mm): Hot Forged: f50-500 Length(mm):2500-5000
Hot Rolled:=50mm
Steel Plate Thickness(mm): Hot Forged:=20mm Width(mm):20-810 mm
Hot Rolled:=20mm
Steel Type
AISI GB DIN JIS
A2 Cr5Mo1V 1.2363 SKD12
Chemical Composition
C Si Mn P S Cr Mo V Ni Cu
0.90-1.05 =0.50 =1.00 =0.025 =0.020 4.75-5.50 0.90-1.40 0.15-0.50 =0.25 =0.30
Noted
(1) Payment: 1.By confirmed, 100% valum irrevocable, letter of credit without recourse, Allowing partial
shipment and transhipment, payable at sight presentation of shipping.
2.By T/T payment: 30% payment in deposited, 70% payment before shipment.
(2) Delivery Time : 40 days after received the buyer's L/C or T/T deposite payment.
(3) Delivery Port :Wuhan/Shanghai/Tianjin
(4) Original Place : Hubei ,China .
(5) Process: Electric furnace melted, forged and annealed, round bar turned.
(6) Tolerance: Dia -0/+ 0~5mm, Thickness -0/+ 0~5mm, Width: -0/+ 0~10mm.
(7) Hardness: HB241MAX
(8) UT Test: SEP 1921/84/2 C/c class.
(9) Allowance on quantity/weight: -/+ 10% per item.
(10) Package: Seaworthy Packing.
Size of AISI 4140 (Can be Customised)
Round Bar Diameter(mm): Hot Forged: f50-500 Length(mm):2500-5000
Hot Rolled:=50mm
Steel Plate Thickness(mm): Hot Forged:=20mm Width(mm):20-810 mm
Hot Rolled:=20mm
Steel Type
AISI GB W-Nr JIS
4140/B7 42CRMO4 1.7225 SCM440
Chemical Composition
C Si Mn P S Cr Mo V
0.38-0.43 0.15-0.35 0.75-1.00 =0.030 =0.030 0.80-1.10 0.15-0.25 /
Noted
(1) Payment: 1.By confirmed, 100% valum irrevocable, letter of credit without recourse, Allowing partial
shipment and transhipment, payable at sight presentation of shipping.
2.By T/T payment: 30% payment in deposited, 70% payment before shipment.
(2) Delivery Time : 40 days after received the buyer's L/C or T/T deposite payment.
(3) Delivery Port :Wuhan/Shanghai/Tianjin
(4) Original Place : Hubei ,China .
(5) Process: Electric furnace melted, forged and annealed, round bar turned.
(6) Tolerance: Dia -0/+ 0~5mm, Thickness -0/+ 0~5mm, Width: -0/+ 0~10mm.
(7) Hardness: Annealed HBS 217 max .
(8) UT Test: SEP 1921/84/2 C/c class.
(9) Allowance on quantity/weight: -/+ 10% per item.
(10) Package: Seaworthy Packing.
ASTM/AISI Standard Alloy Round Bar
AISI 4130 is a low alloy steel containing molybdenum and chromium as strengthening agents. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the fusion weldability standpoint.
Specifications
· Grade: Alloy steel
· Standard: AISI, ASTM, BS, DIN, GB, JIS
· OD:10-500mm
· Thickness: Max:800mm
· Width: 205mm~2300mm
· Length: 1000mm~6000mm
· Place of Origin: China (Mainland)
· Model Number: 1.7220 / SCM430 / 30CrMo4 / 4130 ; 4140/42CrMo4/1.7225; En24 34CrNiMo6 1.6582 4340.
· Application: Mould steel
· Technique: Forged
· Special Use: Mold Steel ,Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
· Shape: Round bars/Flat bar/Plate
· Technology: Hot Rolled/Forged/Clod Draw
· Heat treatment: Annealing/Q+T
· Surface treatment:Black/Peeling/Polishing/Machined
· Delivery condition: Hot rolled or forged/ Peeled or black surface/annealed or QT
· Customer's logo: Available
· Test: SGS/UT100%/Elements testing
· Certificate: ISO/Mill certificate
· Experience: Ten years manufacturer experience
General Scope
This grade is similar to 4140 in scope which has a higher carbon level giving 4130 an advantage when it comes to weldability, this weldability is achieved at the cost of through section hardenability.
AISI 4130 steel is a low alloy steel that is used in structural designs that may be found in applications such as aircraft engine mounts or welded tubing. It is well known for its ease of welding and ability to harden in commercial applications. It is commonly referred to as chromium-molybdenum steel.
Steel I-Beams, also known as H-Beam, are one of the most common steel profile used in construction and civil engineering. It provide support for buildings and load-bearing walls.
The I-shaped section optimises strength weight ratio & surface usability to provide a highly efficient product. It is right-angle formed & so has high bending resistance, construction application simplicity. It save cost, is light weight and thus is used widely in various industries.
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