34CrMo4 Hot Rolled Alloy Seamless Steel Pipe for LPG and CNG Gas Cylinder
Short Description:
34CrMo4 / 35CrMo has high endurance strength and creep strength at high temperature, good impact toughness at low temperature, good hardenability, no overheating tendency, small quenching deformation, acceptable plasticity at cold edge forming and medium processability. Poor weldability, preheating before welding, post welding heat treatment and stress relief are generally used after quenching and tempering, and can also be used after high and medium frequency surface quenching or quenching and low and medium temperature tempering.
Our company since its inception, usually regards product high-quality as company life, constantly boost manufacturing technology, boost product excellent and continuously strengthen company total excellent administration, in strict accordance using the national standard ISO 9001:2000 for 34CrMo4 Hot Rolled Alloy Seamless Steel Pipe for LPG and CNG Gas Cylinder, We welcome customers, business enterprise associations and buddies from all parts on the world to get hold of us and seek out cooperation for mutual benefits.
Our company since its inception, usually regards product high-quality as company life, constantly boost manufacturing technology, boost product excellent and continuously strengthen company total excellent administration, in strict accordance using the national standard ISO 9001:2000 for China 34CrMo4 Alloy Seamless Steel Pipe, Good quality and reasonable price have brought us stable customers and high reputation. Providing ‘Quality Solutions, Excellent Service, Competitive Prices and Prompt Delivery’, we’re now looking forward to even greater cooperation with overseas customers based on mutual benefits. We are going to work whole-heartedly to improve our products and services. We also promise to work jointly with business partners to elevate our cooperation to a higher level and share success together. Warmly welcome you to visit our factory sincerely.
34CrMo4 / 35CrMo is used as important structural parts working under high load, such as transmission parts of vehicles and engines; The rotor, main shaft and transmission shaft with heavy load of turbo generator, the large section part 34CrMo4 is used to manufacture forgings with higher strength and larger quenching and tempering section than 35CrMo steel, such as large gear for locomotive traction, booster transmission gear, rear shaft, connecting rod and spring clamp with great load. 34CrMo4 can also be used for drill pipe joints and fishing tools in oil deep wells below 2000m.34CrMo4 Gas Cylinder Pipe, mainly used in automobile gas cylinder installation, fire protection, medical fields, industry equipment, etc.
The carbon equivalent value CEQ of 35CrMo steel is 0.72%. It can be seen that the weldability of this material is poor, and its hard tendency is large during welding. The hot crack and cold crack tendency of the heat affected zone of 35CrMo alloy pipe will be large. Especially when welding in the quenched and tempered state, the cold crack tendency of the heat affected zone will be very prominent. Therefore, on the basis of selecting appropriate welding materials and reasonable welding methods, higher pre welding preheating temperature Under the condition of strict process measures and proper interpass temperature control, the purpose of product welding can be achieved.
-EN 10297-1 Seamless Circular Steel Tubes for Mechanical and General Engineering Purpose.
-GB/T 8162 Seamless Steel Tubes for Structural Purposes.
| Steel Grade | C | Si | Mn | P | S | Cr | Mo |
| 34CrMo4 | 0.30-0.37 | 0.40 max | 0.60-0.90 | 0.035 max | 0.035 max | 0.90-1.20 | 0.15-0.30 |
| Steel Grade | C | Si | Mn | P | S | Cr | Mo |
| 35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.035 max | 0.035 max | 0.80-1.10 | 0.15-0.25 |
Standards: GB18248 – 2000;
OD: Φ50-325mm; wall thickness: 3-55mm;
OD tolerance: ±0.75%;
Wall margin: -10%—+12.5%
Transverse slope: ≤2mm;
Straightness: 1mm/1m;
Inside diameter roundness: no more than 80% of the OD diameter tolerance.
Surface quality: without crack, folding, delamination and stammer.
Product Categories: Seamless steel tubes for high pressure vessels.
Usages: For all kinds of fuel, hydraulic, trailer, station with gas bottle.
Steel Grade: 34CrMo4、30CrMo、34Mn2V、35CrMo、37Mn、16Mn.Our company since its inception, usually regards product high-quality as company life, constantly boost manufacturing technology, boost product excellent and continuously strengthen company total excellent administration.
34CrMo4 Hot Rolled Alloy Seamless Steel Pipe for LPG and CNG Gas Cylinder
We welcome customers, business enterprise associations and buddies from all parts on the world to get hold of us and seek out cooperation for mutual benefits.
China 34CrMo4 Alloy Seamless Steel Pipe
Good quality and reasonable price have brought us stable customers and high reputation. Providing ‘Quality Solutions, Excellent Service, Competitive Prices and Prompt Delivery’, we’re now looking forward to even greater cooperation with overseas customers based on mutual benefits. We are going to work whole-heartedly to improve our products and services. We also promise to work jointly with business partners to elevate our cooperation to a higher level and share success together. Warmly welcome you to visit our factory sincerely.
