| Customization: | Available |
|---|---|
| Type: | Seamless Steel Tube / Pipe |
| Standard: | AISI, ASTM, DIN, JIS, GB, BS |
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Alloy seamless steel pipe has a hollow section, no joints around the strip of steel. Steel tubes with hollow sections are widely used as conduits for conveying fluids, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, alloy seamless steel pipe has the same bending and torsional strength and is lighter in weight. It is a kind of economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts. The use of alloy seamless steel pipe to make ring parts can improve the utilization rate of materials. Alloy seamless steel pipe or a variety of conventional weapons indispensable material, gun barrel, barrel, etc., to be manufactured by steel pipe.
| 1016 | Low-carbon carburized steel with high manganese content (WMn 0.70%. 1.00%) has slightly higher strength, plasticity, machinability and hardenability than 1015 steel due to its high manganese content. There are less soft spots formed on the surface during carburizing and quenching, so carburizing and carbonitriding treatment should be carried out to obtain comprehensive properties with wear-resistant surface and good toughness at the core. Good toughness after hot rolling or normalizing. Apply to gears and crankshafts. Supports, hinges, screws, nuts, riveted structural parts. |
| 1019/1022 | Characteristics and scope of application: high manganese low carbon penetration steel, with properties similar to 1016 steel. Low-carbon carburized steel with high manganese content (W mn 0.70% - 1.00%) has higher strength, plasticity, machinability and hardenability than 1015 steel due to its high manganese content. There are less soft spots formed on the surface during carburizing and quenching, so carburizing and carbonitriding treatment should be carried out to obtain a comprehensive performance with wear-resistant surface and good toughness at the core. Good toughness after hot rolling or normalizing. It is applicable to gears, crankshafts, brackets, hinges, screws, nuts, riveted structural parts, manufacturing oil tanks, etc. |
| 1025/1026 | Characteristics and scope of application: high manganese low carbon penetration steel, with properties similar to 1016 steel. Low-carbon carburized steel with high manganese content (W mn 0.70% - 1.00%) has less soft spots on the surface during carburizing and quenching, so carburizing and carbonitriding treatment should be carried out to obtain comprehensive properties of surface wear resistance and good core toughness. Good toughness after hot rolling or normalizing. It is applicable to gears, crankshafts, brackets, hinges, screws, nuts, riveted structural parts, manufacturing oil tanks, etc. |
| 1033 | It has high strength and hardenability, good plasticity during cold deformation, medium weldability and good machinability. It has temper brittleness tendency and overheating sensitivity during heat treatment. It is applied to bolts, nuts, screws, pull rods, levers, small shafts, brake gears. |
| 1037 | High strength and hardenability, medium plasticity during cold deformation. Good machinability, but poor weldability. It should be used after conditioning. It is applied to rotating shafts, meshing rods, bolts, nuts, screws, mandrels, gears, etc. |
| 1039 | After heat treatment, the strength, hardness and toughness are slightly higher than that of 1040 steel, the cold deformation plasticity is medium, the machinability is good, the weldability is low, it has overheating sensitivity and temper brittleness, and it is easy to crack after water quenching. It is applied to fatigue parts, crankshafts, rollers, shafts, and connecting rods. Screws, nuts, etc. working under high stress. |
| Material | component | C | Si | Mn | P | S | Cr | Ni | Cu |
| ASTM 1320 GB 20Mn2 | minimum value | 0.17 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.24 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 | |
| ASTM 1330 GB 30Mn2 | minimum value | 0.27 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.34 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 | |
| ASTM 1335 GB 35Mn2 | minimum value | 0.32 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.39 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 | |
| ASTM 1340 GB 40Mn2 | minimum value | 0.37 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.44 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 | |
| ASTM 1345 GB 45Mn2 | minimum value | 0.42 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.49 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 | |
| GB 50Mn2 DIN 50Mn7 | minimum value | 0.47 | 0.17 | 1.4 | - | - | - | - | - |
| maximum value | 0.55 | 0.37 | 1.8 | 0.035 | 0.035 | 0.3 | 0.3 | 0.3 |
| Material | Diameter (thickness) d mm |
tensile strength σ b Mpa |
Yield point σ s Mpa |
Elongation or elongation after fracture δ % |
Hardness HBW |
Impact absorbed energy KV2 J |
| ASTM 1320 GB 20Mn2 | d=15 | ≥785 | ≥590 | ≥10 | ≤187 |
≥47 |
| ASTM 1330 GB 30Mn2 | d=25 | ≥785 | ≥635 | ≥12 | ≤207 |
≥63 |
| ASTM 1335 GB 35Mn2 | d=25 | ≥835 | ≥685 | ≥12 | ≤207 | ≥55 |
| ASTM 1340 GB 40Mn2 | d=25 | ≥885 | ≥735 | ≥12 | ≤217 | ≥55 |
| ASTM 1345 GB 45Mn2 | d=25 | ≥885 | ≥735 | ≥10 | ≤217 |
≥47 |
| GB 50Mn2 DIN 50Mn2 | d=25 | ≥930 | ≥785 | ≥9 | ≤229 | ≥39 |
| Tolerances | ||
| Pipe types | Pipe sizes(mm) | Tolerances |
Hot rolled |
OD<50 | ±0.50mm |
| OD≥50 | ±1% | |
| WT<4 | ±12.5% | |
| WT 4~20 | +15%, -12.5% | |
| WT>20 | ±12.5% | |
Cold drawn |
OD 6~10 | ±0.20mm |
| OD 10~30 | ±0.40mm | |
| OD 30~50 | ±0.45 | |
| OD>50 | ±1% | |
| WT≤1 | ±0.15mm | |
| WT 1~3 | +15%, -10% | |
| WT >3 | +12.5%, -10% | |
Q1:who are we?
A:We are based in Shandong, China, start from 2022,sell to North America(60.00%),Western Europe(14.00%),South America(6.00%).
There are total about 11-50 people in our office.
Q2. how can we guarantee quality?
A:Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q3.what can you buy from us?Which ports are accepted for delivery?
A:Copper,Aluminum,Mould steel, Seamless carbon steel,Precision steel pipe,The steel plate,Alloy steel,Titanium,Custom machine parts.It can be delivered from Qingdao, Tianjin, Shanghai, Guangzhou and other ports.
Q4.why should you buy from us not from other suppliers?
A:Shandong Meide Import and Export Co., Ltd. has 25 years of production experience. With advanced precision production equipment
and modern large warehouses, has a stockpile of 200,000 tons of goods, has a number of long-term stable cooperative customers.
Q5.what services can we provide?
A:Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal;
Language Spoken:English,Chinese
Q6.Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q7.How can we get your price ?
A:We need below information to quote for you:
1). Product Name
2). Standard
3). Material Grade (Chemical Composition)
4). Dimension
5). Quantity
6). The Drawing for Special Parts
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