SHANDONG TONGMAO SPECIAL STEEL CO., LTD
| Payment Terms | L/C, T/T, Western Union, MoneyGram |
| Supply Ability | 500 Tons - 1 Month |
| Delivery Time | 5-15 Working Days |
| Packaging Details | Sea Worth Packaging or Client's Request |
| Surface Treatment | Bulk, Galvanized |
| Technique | Hot Rolled |
| Application | Container Plate, Flange Plate |
| Specification | 0.12-16mm*600-2500mm |
| Type | Steel Plate,Steel sheet |
| Model NO. | ASTM A36, DIN/BS S235JR, ST37-2 |
| Brand Name | Tongmao |
| Model Number | Carbon Steel Sheet Plate |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T, Western Union, MoneyGram | Supply Ability | 500 Tons - 1 Month |
| Delivery Time | 5-15 Working Days | Packaging Details | Sea Worth Packaging or Client's Request |
| Surface Treatment | Bulk, Galvanized | Technique | Hot Rolled |
| Application | Container Plate, Flange Plate | Specification | 0.12-16mm*600-2500mm |
| Type | Steel Plate,Steel sheet | Model NO. | ASTM A36, DIN/BS S235JR, ST37-2 |
| Brand Name | Tongmao | Model Number | Carbon Steel Sheet Plate |
| Certification | ISO9001 | Place of Origin | China |
| High Light | Medium Carbon Alloy Steel Plate ，Galvanized Hot Rolled Carbon Steel Plate | ||
2.5mm-15.5mm Hot Rolled Carbon Steel Ms Sheet Medium Carbon Alloy Steel Plate
| Products | Corten Steel Plate |
| Standard grade | ASTM: Corten A; Corten B; A588Gr.A/Gr.B/Gr.C/ Gr.K; A242; A606 Type 4; A709 Gr 50W; |
| EN10025: S235J0W; S235J2W; S355J0W; S355J2W; S355K2W; S355J0WP; S355J2WP; S355J2G1W; S355J2G2W; S355K2G1W, S355K2G2W; | |
| JIS G3114: SMA400AW; SMA400BW; SMA400CW; SMA490AW; SMA490BW; SMA490CW; SMA570W; SMA570P; | |
| JIS G3125: SPA-H; SPA-C; | |
| GB/T 4171: Q235NH; Q265GNH; Q310GNH; Q295NH; Q295GNH; Q355NH;Q355GNH; Q415NH; Q460NH; 1500NH; Q550NH; | |
| TB/T 1979: 09CuPCrNi-A; 09CuCrNi-B; 05CuPCrNi; | |
| Q/BQB 340: B460NQR; B490NQR; B480GNQR; B600GNQR; | |
| Thickness | Cold Rolled 0.5-2mm Hot Rolled 2-300mm (2-100mm usually used) |
| Width | 1000-3000mm (1000-2200mm usually used) |
| Length | 1000-12000mm or as your request |
| Surface | Clean, finishing,blasting and painting according to customer requirement |
| Process | Hot-rolled, Controlled rolling, Normalizing, Annealing, Tempering, Quenching, N+T, Q+T, and other delivery states are available as required |
| Certificate | API,ISO,SGS,BV,CE etc |
| Quality | MTC will be provided with goods, third part inspection is acceptable, for example BV,SGS. |
| Package | Standard export seaworthy package,suit for all kinds of transport,or as required. |
| Container Size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) |
| 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) | |
| Trade term | Ex-Work,FOB,CNF,CFR,CIF,etc |
| Application | Widely used in a variety of architectural and engineering structures,such as |
| 1.) metal constructions such as buildings,bridges,ships; | |
| 2.) transmission tower, reaction tower; | |
| 3.) lifting transportation machinery; | |
| 4.) industrial furnace;boilers | |
| 5.) container frame, warehouse goods shelves, etc |
Causes and effects of normalizing, tempering and quenching of carbon steel plates
Normalizing: Normalizing is a heat treatment to improve the toughness of steel. The steel member is heated to 30 ~ 50℃ above the Ac3 temperature, and then it is cooled by air for a period of time. The main characteristic is that the cooling speed is faster than annealing but lower than quenching, normalizing can make the steel crystal grain refinement in slightly faster cooling, not only can get satisfactory strength, but also can obviously improve the toughness (AKV value), reduce the cracking tendency of the component.
Two, tempering: tempering is a heat treatment process in which the workpiece is heated to a certain temperature below Ac1 (the beginning temperature of pearlite to austenite transformation when heated) after hardening. It is kept for a certain time and then cooled to room temperature.
Tempering is generally followed by quenching, with the purpose of:
(a) Eliminate residual stress generated during quenching of the workpiece to prevent deformation and cracking;
(b) Adjust the hardness, strength, plasticity and toughness of the workpiece to meet the performance requirements;
(c) Stable organization and size to ensure accuracy;
(d) Improvement and enhancement of machining performance. Therefore, tempering is the last important step in obtaining the desired performance of the workpiece. Through the combination of quenching and tempering, the desired mechanical properties can be obtained.
According to the tempering temperature range, tempering can be divided into low temperature tempering, medium temperature tempering and high temperature tempering.
Three, quenching: workpiece heating austenitizing after cooling in an appropriate way to obtain martensite or bainite structure of heat treatment process. The most common are water-cooled quenching, oil-cooled quenching, air-cooled quenching and so on.
Annealing, normalizing, quenching and tempering are the "four fires" in the whole heat treatment. The quenching and tempering are closely related to each other and are often used together.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
2016
Total Annual:
500000-2000000
Employee Number:
1~50
Ecer Certification：
Active Member
SHANDONG TONGMAO SPECIAL STEEL CO., LTD is reputed at supplying stainless steel pipe, carbon steel seamless pipe ,alloy steel pipe, hot-rolled steel pipe, cold rolled steel pipe, galvanized steel pipe, welded steel pipe, precision steel pipe , also supply steel plate , steel coil and lead sheet etc.... SHANDONG TONGMAO SPECIAL STEEL CO., LTD is reputed at supplying stainless steel pipe, carbon steel seamless pipe ,alloy steel pipe, hot-rolled steel pipe, cold rolled steel pipe, galvanized steel pipe, welded steel pipe, precision steel pipe , also supply steel plate , steel coil and lead sheet etc....
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