发布于

SS304 stainless steel perforated plate

Core characteristics

Material advantages

  1. Corrosion resistance: Contains 18%~20% chromium and 8%~10.5% nickel. The surface passivation film can resist acid and alkali corrosion and is suitable for humid/chemical environments210.

Mechanical properties: Tensile strength ≥520MPa, yield strength ≥205MPa, elongation ≥40%, with both high strength and processing plasticity214.

Temperature range: Stable performance within -196°C to 800°C, no heat treatment hardening

  1. Perforated plate process parameters

Core characteristics Material advantages 1. Corrosion resistance: Contains 18%~20% chromium and 8%~10.5% nickel. The surface passivation film can resist acid and alkali corrosion and is suitable for humid/chemical environments210. Mechanical properties: Tensile strength ≥520MPa, yield strength ≥205MPa, elongation ≥40%, with both high strength and processing plasticity214. Temperature range: Stable performance within -196°C to 800°C, no heat treatment hardening

2. Perforated plate process parameters star_border

ITEMS‌‌Rang‌‌Describe
Thickness0.2–20mmCold rolled （0.02–4mm）Or Hot rolled（4.5–100mm）
Hole Size0.5–200mmSupports customization of round holes, square holes, diamond holes, etc
Hole designUniform array/artistic patternPrecision machining by CNC punching machine, smooth edges without burrs
  1. Core application scenarios
    Industrial field
    Filtration and screening: mine screens, granary ventilation nets (such as 60 mesh perforated plates), mechanical protective covers.
    Environmental protection equipment: wind and dust suppression nets, sound barrier sound absorption layer (used in combination with sound-absorbing cotton).
    Architecture and decoration
    Curtain wall/partition: light-transmitting but not shadow-transmitting, optimizing space lighting; hole design reduces sunlight glare.
    Safety protection: balcony anti-fall nets, anti-slip pedals (enhanced surface friction).
    Life and special uses
    Household items: decorative nets, perforated boards, kitchen utensils (corrosion-resistant and easy to clean).
    Medical/aviation: surgical instrument brackets (biocompatible), aircraft lightweight components (aluminum alloy alternatives)

Customization points

Clearly define the requirements for aperture, hole spacing, thickness and tensile strength, such as the common specification of “1.0mm thickness + 5mm aperture”.
Surface treatment: Mirror or brushed process is preferred to improve stain resistance and aesthetics

发布于

Cheap Price for DIN 34CrNiMo6 /1.6582 | 4337 QT Engineering Steel

Application:

High voltage bolts and nuts, crankshafts, camshafts, transmission axles, torsion bars, drive shafts, pump shafts, worm shafts, conveyor rollers, stems, pins, tie rods, clutch discs. Large-mass dies for hot stamping.1.6582 Steel is widely used in the aerospace industry for structural parts of flaps assembly, fuselage and landing gear, propeller plane axles.

  1. Supply Form & Size & Tolerance
Supply FormSize(mm)Process Tolerance Tolerance
RoundΦ6-Φ100Cold Drawn Bright/Black Best H11
Peeled/ground

Φ16-Φ350

Hot Rolled Black -0/+1mm

Peeled/ground
Φ90-Φ1000

Hot Forged Black -0/+5mm

Remark: Tolerance can be customized as per requests

2. Chemical Composition

StandardGradeCMnPSSiNiCrMo
EN 10083
EN 10250		34CrNiMo6/
1.6582
0.30-0.38
0.50-0.80
≤ 0.025
≤ 0.035
≤ 0.4
1.3-1.7
1.3-1.7
0.15-0.3

3. Physical Property:

Payment & Delivery

1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples.

发布于

Good quality Motorcycle crankshafts from a Chinese manufacturer

Motorcycle crankshaft：

The working principle of the motorcycle crankshaft

The crankshaft of a motorcycle is a component that ignites the gasoline in the engine. The gasoline combustion work drives the live race down, and then drives the crankshaft to rotate. It also depends on the inertia of the crankshaft to maintain operation when it is not ignited. As long as the engine is started, the crankshaft will continue to rotate, and drive the magneto to generate electricity, charge the battery and use it for power devices in the car. If the gear does not go, it means pinch-clutch (hand-clutched models) or idling (auto-clutch models such as pedals or curved beams). At this time, the crankshaft is still rotating. Bending beam or pedal) the car will not go, the resistance of the engine is slightly increased, but the effect is very small, and the engine speed in neutral is the same.

The motorcycle crankshaft is one of the most important parts in the internal combustion engine. It connects the piston, connecting rod and camshaft. Its main function is to convert the reciprocating motion of the piston into the rotational motion of the output shaft, thereby driving the operation of the motorcycle.

The crankshaft consists of multiple cranks, each of which is connected to a piston and a connecting rod. When the piston moves up and down in the cylinder, the connecting rod drives the crank to rotate, and finally converts the reciprocating motion of the piston into the rotational motion of the output shaft. This motion conversion method allows the motorcycle to run smoothly and provides enough power to drive the vehicle.

The design and manufacture of the crankshaft need to take into account many factors, such as strength, weight, thermal expansion coefficient, noise and fuel consumption. Modern motorcycle manufacturers usually use high-performance alloy materials to manufacture crankshafts to improve their performance and durability.

发布于

Ten Mind-Blowing Reasons Why DIN1.6773 36CrNiMo16 35NCD16 835M30 EN30B Steel Is Using This Technique For Exposure.

Quenched and Tempered 35NCD16 835M30 EN30B DIN1.6773 36CrNiMo16 Steel 36crnimo16 steel Quenched and Tempered 35NCD16 835M30 EN30B DIN1.6773 36CrNiMo16 Steel Quenched and Tempered 35NCD16 835M30 EN30B DIN1

Quenched and Tempered 35NCD16 835M30 EN30B DIN1.6773 36CrNiMo16 Steel
Applications:

The applications of 36CrNiMo16 Steel are numerous and includes the following:

  • In Engineering: ultra high tensile applications, shafts, gears, bolts, spline shafts, crusher shafts, eccentric shafts, hard wearing bushes and high impact pistons
  • In mining: rock drill, knock off bits, mill hammers, cyclone plates, high tensile mechanical and thermal shock applications
  • In Tooling: plastic extrusion dies, die bolster rings and punches
Quality Standard:

BS EN10250 Open die forging for general engineering purposes
ASTM A788 Standard Specification for Steel Forgings, General Requirements

All Grades Comparison:

ENMaterial No.BSNF
36CrNiMo161.6773835M30/EN30B35NCD16
Chemical Composition(%):
CMnSiPSCrNiMo
0.32-0.390.30-0.600.40 max0.030 max0.025 max1.60-2.003.60-4.100.25-0.45
Mechanical Properties(In Nomalized Condition):
Dia/Thickness(mm)Tensile Strength Rm (Mpa)Yield Strength R2 (Mpa)Elongation (longitudinal direction) Al (%)Elongation (transverse direction) At (%)Impact properties (KV J) (longitudinal)Impact properties (KV J) (transverse)
160 max1000 min800 min11 min8 min45 min22 min
160-3301000 min800 min11 min8 min45 min22 min
330-6601000 min800 min11 min8 min45 min22 min
Dimension Tolerance Standard:  DIN 7527
Ultrasonic Test: SEP 1921 C/c or specific FBH eq.

Heat Treatment:
Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each EN30B steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of this 4.25% nickel alloy steel.

ForgingHeat the steel carefully to the forging temperature of 1000-1100°C, soak well. After forging, cool slowly in a furnace to 100°C maximum and anneal immediately.
AnnealingTo obtain the softest condition heat carefully to 630-650°C. Soak for a minimum of 2 hours, then cool in the furnace or in air. It is advisable to repeat this treatment to obtain the best machining characteristics.
Stress RelievingWhere the machining operations have been severe, we recommend stress relieving EN30B alloy steel before finish machining and hardening. Heat carefully to 630-650°C then cool in the furnace or in still air.
HardeningHeat uniformly to 810-830°C and when thoroughly soaked at this temperature cool in air or quench in oil according to mass. Hardening from neutral salt baths will help to prevent scaling or decarburisation and is strongly recommended. Pre heat at 300-400°C, raise to the hardening temperature of 810-830°C, quench into salt standing at 300-320°C.  Withdraw and cool in air. Alternatively, tools may be vacuum hardened. If desired, hardened and tempered tools can be cyanide hardened to give a shallow carburised case to die surfaces with increased hardness values up to Rockwell C56-60. Temper as soon as tools are hand-warm.
TemperingRe heat to the relevant tempering temperature. Soak for at least 2 hours per 25mm of ruling section. Withdraw from the furnace and cool in still air. Tempering between 275-450°C is not advised as tempering within this range will reduce the impact value.
Tempering °C   150 250 350 450
HRc                       49 47 44 38
Mill´s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

发布于

Stock ASTMA29 4130/30CrMo Hot Rolled Steel Round Bar Bright Bar, AISI 4130 Round Bar, AISI 4130 Rods, 4130 alloy steel flat bar alloy steel bar stock Suppliers and Dealer in China

AISI 4130 Round Bar Specifications
Dimensions:EN, DIN, JIS, ASTM, BS, ASME, AISI
Size
:5 mm To 500 mm
Diameter:0.1 mm to 100 mm
Length:100 mm To 3000 mm Long & Above
Finish:Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Tolerance:H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Form:Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.

4130 AISI Round Bar Chemical Composition

GradeCMnSiPSFeMoNiCr
AISI 4130 0.28-0.33 0.40-0.60 0.15-0.350.035 max0.025 MAX 97.3-98.22 0.15-0.250.50 max0.80-1.10

AISI  4130 Rods Mechanical Properties

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
 7.85 g/cm3 1432 ℃ 56046021.50%

Equivalent Grades for 4130 AISI Round Bar

STANDARDWERKSTOFF NR.UNSJISBSEN
AISI 41301.7218G41300JIS G4105BS 97025CrMo4

AISI 4130 Round Bar Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

4130 AISI Rods Test Certificates

 EN 10204/3.1B,

AISI 4130 Rods Packaging

AISI 4130 Bars Packing
AISI 4130 Rods Packing
发布于

Stock 100CrMn6/1.3520 Chromium-manganese alloy bearing steel

Applications
Roller bearings with thickness up to 50 mm. 

Description
Medium alloy, oil-hardening tooling steel, which is hard-wearing.

Quality Standard:

DIN 17230-1980 Ball and Roller Bearing Steels

Chemical Composition(%)
CSiMnPSCrNiCu
0.90-1.050.50-0.701.00-1.200.030 max0.025 max1.40-1.650.30 max0.30 max
HEAT TREATMENT:

Soft Annealing
Heat to 760-800oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 217.

Normalizing
Normalizing temperature: 860-900oC.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to approx. 650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 830-890oC followed by oil quenching. Hardness after quenching is approx. 64 HRC.

Tempering
Tempering temperature: 150-180oC.

Forging
Hot forming temperature: 1100-850oC. 

发布于

Stock Alloy solid bar 1.8509/38CrMoAl/905M39/SACM645/41CrAlMo7 Q+T with bright surface condition

1. Chemical composition

Grade        C       Si       Mn        P        S        Cr       Mo      Al
 38CrMoAl0.35-0.420.20-0.450.30-0.60   ≤0.035    ≤0.0351.35-1.650.15-0.250.70-1.10

2. Equivalent Steel Grade

GBASTMDIN
38CrMoAl71401.8509

3. Applications: 
1.Statically and dynamically stressed components for vehicles, engines and machines.

2.For parts of larger cross-sections, crankshafts, gears and so on.

4.Main features: 
1.Good resistance to tempering.

2.Excellent corrosion resistance.

3.Excellent dimensional stability during heat treatment.

4.Excellent polishing

5.Good wear resistance

发布于

Case Hardening Steels A1444 42CrMo4/En19/4140 alloy steel bar stock high tensile steel for bolts alloy steel bright bar manufacturer

what is high tensile steel bar

Application:
4140 Alloy Steel/SAE 4140 Steel Price  is use to producecomponents with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering .

Chemical Composition                                                                                     

CSiMnCr MoPS
0.38-0.430.40max0.60-0.900.90-1.200.15-0.30≤0.035≤0.035

how high tensile steel is made Heat treatment                                                      

ForgingHeat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.
AnnealingHeat to 830°C-850°C.Cool in furnace.
NormalisingHeat to 870°C-900°C.Cool in still air.
Stress RelievingAnnealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.
HardeningHeat to 830°C-880°C. Quench in oil or polymer.
TemperingHeat to 450°C-700°C cool in still air. NB. Tempering within the range 200°C-420°C will result in temper brittleness and should be avoided.

Mechanical Properties:

Tensile Strength    (Mpa)Yield Strength (Mpa)Hardness     (HB)Elongation    (%)Izod Impact (J)
850-1000665 min248-30213 min54 min

UT：100% U.T acc. to ASTM AS 1065 -Level 2

Surface condition                                                                          

Black surface/ Grinded/ Machined

Package: wooden case & water proof.

Transport:

ASTM 4140 SCM440 42CrMo4 forged solid steel bar
ASTM 4140 SCM440 42CrMo4 forged solid steel bar

发布于

Cheap price Alloy 4140/SCM440/42CrMo4 Cold Drawn Bar Precision from China mill

Yeguang steel Metal is a distributor of 4140 grade cold drawn steel bar. 4140 bars have high hardenability, and the molybdenum content provides high strength and uniformity of hardness. Unlike other grades, the carbon content of 4140 grade steel allows it to hold up well to heat treatment, while having good wear resistance and strength.

4140 Mechanical Properties (Annealed)

Tensile Strength95,000 psi
Yield Strength60,500 psi
Elongation in 2″25.7%
Reduction of Area55.9%
Brinelle Hardness197

4140 Mechanical Properties (Normalized)

Tensile Strength148,000 psi
Yield Strength95,000 psi
Elongation in 2″17.7%
Reduction of Area46.8%
Brinelle Hardness302

Chemcial Compositions(%):
Quality StandardSteel GradeCSiMnPSCrNiMo
ASTM A2941400.38-0.430.15-0.350.75-1.00≤0.035≤0.0400.80-1.10/0.15-0.25
JIS G4053SCM4400.38-0.430.15-0.350.60-0.90≤0.030≤0.0300.90-1.20≤0.250.15-0.30
EN 10083-342CrMo40.38-0.45≤0.400.60-0.90≤0.025≤0.0350.90-1.200.15-0.30/
  • ASTM A29 Standard Specification Steel Bars Carbon and Alloy Hot Wrought General Requirements 
  • JIS G4053 2008 Low alloyed steels for machine structural use
  • Steel for quenching and tempering-Part3: Technical delivery conditions for alloy steels of EN 10083-3:2007

Steel Grades

  • ASTM A29: 4140
  • JIS G4053: SCM440
  • EN10083:  42CrMo4

Surface Condition:

  • Smooth Surface
  • Grinded Surface 
  • Peeled Surface
发布于

Stockist Structural Alloy Steel 1.6582 34CrNiMo6 EN24 Round Bar

Application:
High voltage bolts and nuts, crankshafts, camshafts, transmission axles, torsion bars, drive shafts, pump shafts, worm shafts, conveyor rollers, stems, pins, tie rods, clutch discs. Large-mass dies for hot stamping.1.6582 Steel is widely used in the aerospace industry for structural parts of flaps assembly, fuselage and landing gear, propeller plane axles.

Product Description:
1.6582 Steel is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. A very popular, versatile steel. It can be heat-treated to produce a wide range of tensile strength in moderate sections.

>>>Steel Grades

Stockist Structural Alloy Steel 1.6582 34CrNiMo6 EN24 Round Bar

 DIN1.6582,

SNCM439,

35NCD6,

38Ch2N2MA,

EN24,

817M40,

34CrNiMo6,

Standard: En10083

Heat Treatment:

Annealing: Heat to 800℃ – 850 ℃ , hold until temperature is uniform throughout the section and cool in furnace.

Flame or Induction Hardening: 1.6582steel can be further surface hardened by either the flame or induction hardening methods resulting in a case hardness in excess of Rc 50. Parts should be heated as quickly as possible to the austenitic temperature range (830℃  – 860℃ ) and required case depth followed by an immediate oil or water quench, depending upon hardness required, workpiece size/shape and quenching arrangements. Following quenching to hand warm, most components should be tempered between 150℃  – 200℃ to remove quenching stresses in the case. This will have little effect on case hardness.

Hardening: Heat to 830℃  – 860℃, hold until temperature is uniform throughout the section, soak for 10 – 15 minutes per 25 mm section, and quench in oil, water, or polymer as required.

*Temper immediately while still hand warm.

Nitriding: 1.6582 steel can also be successfully nitrided, giving a surface hardness of up to Rc 60. Nitriding is carried out at 490℃– 530℃, followed by slow cooling (no quench) reducing the problem of distortion. Parts can therefore be machined to near final size, leaving a grinding allowance only. The tensile strength of the core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed. N.B. Nickel is inert to the action of nitrogen and in general resists its diffusion into steel. This can result in lower case hardness or longer nitriding cycle times for steels containing nickel such as 1.6582 steel.

Stress Relieving: Heat to 600℃– 650 ℃, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air.

Tempering: Re-heat to 450℃– 660℃as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air. N.B. Tempering should be avoided if possible within the range 250℃ – 450℃ due to temper brittleness.

Notes on Heat Treatment: Heating temperatures, rate of heating, cooling and soaking times will vary due to factors such as work piece size/shape also furnace type employed, quenching medium and work piece transfer facilities etc.

Chemcial composition:

GradeCMnPSSiCrNiMo
1.65820.30-0.380.50-0.800.025max0.035max0.40max1.30-1.701.30-1.700.15-0.30
Packing detailsIn seaworthy packing, as your requirement.
Delivery detailswithin 10-50 days

Mill′s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.