Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of steel alloy forgings in China. Please feel free to wholesale customized steel alloy forgings at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
Materials and Manufacture
[Melting Practice]
The steel melting procedures of Specification A778/A778M shall apply except that for Grade M forgings,only steel that has been vacuum treated prior to or during the pouring of the ignot,in order to remove objectionable gases,particylarly hydrogen,shall be used.
[Production Methods]
Methods for the production of gas bottles and similar vessels shall include the cupping of slabs or plates,the piercing of billets or plates,and the subsequent drawing of cups so produced.Such semifinished forgings or seamless steel pipe or tubing shall be closed by spinning,swedging,or pressing.In all cases there shall be sufficient discard to ensure soundness in the completed forging.
Magnetic Particle Examination
1.All quenched and tempered forgings shall be subhect to magnetic particle examination atfter heat treatment.The methods used shall be in accordance with Practice A275/A275M.
2.Only direct current or rectified alternating[full or half wave] current shall be used as the electric powe source for any of the magnetizing methods.
3.The forgings shall be free from linear indications indicative of carcks.In case of doube as to the type of condition giving rise to linear magnetic particle indications,they may be inspected for Type Ⅱindications referenced in Reference Photographs E433 when inspected by the liquid penetrant method in accordance with Practice E165/E165M.Alternatively,some other suitable method for classifying the indications may be used as agreed upon between the manufacturer and the purchaser.
Routine Parameter
| OD | 1''~38'' |
| Class | 15LB/150LB/300LB/1500LB |
| Packing | Wood Box |
| Outside | Black Paingting/bare |
| Unit Of Measurement | PCS/EA |
Products
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FAQ
Q: Does the order have a MOQ?
A: No.
Q: What are the commonly used trade terms?
A: FOB or CIF.
Q: What is the shipping method?
A: LCL/FCL
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