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ASTM/AISI Standard Alloy Round Bar
AISI 4140 is a chromium molybdenum alloy steel specification widely used in the oil and gas industry. Similar to grade AISI 4130 but with a slightly higher carbon content.
American Iron and Steel Institute (AISI 4140) is a member of the low alloy tool steel family characterized by small quantities of trace elements added to an otherwise simple steel. These trace elements, when compared with more simple steel such as 1040, improves the characteristics of 4140 . However, because 4140 remains relatively simple, it is used in a wider range of applications than more specialized tool steels like the D or S series of steel.
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
One of the most popular alloys for Oil Field applications, a high proportion of which is in Tubular form for downhole tools and accessories.
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.
Quality Inspection: 100% inspection
Technique: Forged
Delivery time: within 40-60 days (Oversea)
Diameter:130mm-1200mm
Delivery condition:black surface/turned/heat treatment
Length range: 4 meter and up or fix length
Ultra-sonic testï¼?SEP 1921 Group 3 Class C/c or D/d,or E/e;
Grain size: better than 5 As per ASTM E112-96.
Length range:4 meter and up or fix length;
Minimum oder:12 tons
Produce capability :6000 tons/month
Marking: Customized Or Standard
Packing: Customized or Loose packing
Payment:T/T or L/C
Quality Inspection: 100% inspection
Technique: Forged
Delivery time: within 40-60 days (Oversea)
Diameter:130mm-1200mm
Delivery condition:black surface/turned/heat treatment
Length range: 4 meter and up or fix length
Ultra-sonic testï¼?SEP 1921 Group 3 Class C/c or D/d,or E/e;
Grain size: better than 5 As per ASTM E112-96.
Length range:4 meter and up or fix length;
Minimum oder:12 tons
Produce capability :6000 tons/month
Marking: Customized Or Standard
Packing: Customized or Loose packing
Payment:T/T or L/C
192 is the steel of carbon structural steel, which is a kind of alloy steel and carbon steel. The carbon content is about 0.05%~0.70%, and some can reach up to 0.90%. It can be divided into ordinary carbon structural steel and high-quality carbon structural steel.
Now the common round steel processes are hot rolling, forging and cold drawing. The steel quality and application scope of these three processing modes will also have some differences. For example, the specification of hot rolling is generally 5.5-250MM, and the appropriate steel can be selected according to the actual needs.
Generally, parts are manufactured by machinery or used as seamless steel pipe blanks, and steel is also used in some building construction.
Round steel has relatively high strength, high hardenability and very good toughness, so its pressure bearing capacity is also guaranteed. Even if it is used at high temperature, the creep strength is high and the durability is also guaranteed.
Material
A192
Thickness
0.1mm-300mm or as required
Standard
AISI,ASTM,DIN,BS,JIS,GB,JIS,SUS,EN,etc.
Technique
Hot rolled,cold rolled
Surface Treatment
Clean, blasting and painting according to customer requirement
Thickness tolerance
�±0.1mm
Application
It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts.
Shipment time
Within 7-15 workdays after receiving deposit or L/C
Export packing
Waterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity
250,000 tons/year
Round steel belongs to carbon structural steel for construction and machinery, while square steel belongs to carbon structural
steel for machinery. Both of them are simple section steel, and their section shapes are respectively round and square. Low carbon is mainly used for
drawing wire, forging rivets, bolts, nuts and other metal products of raw materials. Medium carbon round steel and square steel
are generally used to make mechanical structural parts.
Warehouse Storage
Shandong Jintuo Metal Materials Co., Ltd is located in Liaocheng City, the capital of steel tubes. It is a large enterprise specializing in the sales of carbon steel, stainless steel, galvanized color coated products, and copper and aluminum.Our company adopts a flexible business approach and management mechanism to provide good services to customers, while also considering the interests of the owner and the project, in order to ensure the quality of the project.
Performance and application of material ST37: the material has good performance, that is, through cold rolling, it can obtain cold rolled strip and steel plate with thinner thickness and higher precision, with high straightness, high surface finish, clean and bright surface of cold rolled plate in Taiwan Strait, easy to be coated, various varieties, wide application, high stamping performance, non aging, and low yield point.
Now the common round steel processes are hot rolling, forging and cold drawing. The steel quality and application scope of these three processing modes will also have some differences. For example, the specification of hot rolling is generally 5.5-250MM, and the appropriate steel can be selected according to the actual needs.
Generally, parts are manufactured by machinery or used as seamless steel pipe blanks, and steel is also used in some building construction.
Round steel has relatively high strength, high hardenability and very good toughness, so its pressure bearing capacity is also guaranteed. Even if it is used at high temperature, the creep strength is high and the durability is also guaranteed.
Material
ST37
Thickness
0.1mm-300mm or as required
Standard
AISI,ASTM,DIN,BS,JIS,GB,JIS,SUS,EN,etc.
Technique
Hot rolled,cold rolled
Surface Treatment
Clean, blasting and painting according to customer requirement
Thickness tolerance
�±0.1mm
Application
It is mainly used to make structural parts such as car girder, beam, transmission shaft and car chassis parts, which can reduce the weight of the parts.
Shipment time
Within 7-15 workdays after receiving deposit or L/C
Export packing
Waterproof paper, and steel strip packed.
Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity
250,000 tons/year
Round steel belongs to carbon structural steel for construction and machinery, while square steel belongs to carbon structural
steel for machinery. Both of them are simple section steel, and their section shapes are respectively round and square. Low carbon is mainly used for
drawing wire, forging rivets, bolts, nuts and other metal products of raw materials. Medium carbon round steel and square steel
are generally used to make mechanical structural parts.
Carbon steel round bar
1.Grade:1018
2. Surface: black surface/turned/ground
3. Process: eaf+lf+vd+ forged+ heat treatment (annealed, normalized, q+t)
4. Chemical composition (%):
C si mn pâ?¤ sâ?¤
0.15/0.23 0.10/0.35 0.60/0.90 0.025 0.025
5.Specification:
Round
Diameter length
10mm~600mm 2000mm~6000mm
Steel plate
Thickness width length
20~400mm 80~1000mm 2000mm~5800mm
6. Inspection: 100% ultrasonic according to the test standards:sep1921-84, gr.3 class c/c
7. Packing situation: standard seaworthy packing or as customer required
8. Delivery time: 20 days after order confirmed
9. Payment: t/t or l/c at sight.
Application:
Extrusion dies and die-casting for alumium, mandgnesium allay mostly, for copper alloy could usemechaincal press forhing of steel, could use also various large-sized mirror plastic mould, precision plastic mould, like: cars accessies, home appliances, electronic equipment plastic mould
Cutting service provided
Workshop is equipped with the most advanced cnc grinding machine, cnc milling machine, vertical and horizontal band saw cutting machine, max. 30mt loading cranes, ultrasonic test machines... These equipments are manipulated with professional engineers with many years work experiences
Chemical composition
C Si Mn P S Cr Ni
0.27~0.33 0.17~0.37 0.30~0.60 Â?¤0.035 Â?¤0.035 0.60~0.90 2.75~3.15
1.Specifications of 40cr steel
Round bar Diameter(mm) Length (mm)
20~800 3000~5800
Plate Thickness(mm) Width (mm) Length (mm)
Max:800 205~800 2000~4000
The specification can be customized.
