On October 7, we received an inquiry from an old customer in Vietnam for flanges, forged pipe fittings, and some customized elbows. The product in this inquiry is basically the same as the previous order，and the customer is very satisfied with the previous batch of goods.

After reviewing our quotation, the customer discussed the details of the order with us, including packaging, transportation, delivery time and other issues. Finally, we received the customer’s order. This is our second cooperation with the client.

Below is purchase order list

No	Description	Material
1	HALF THREAD COUPLNG HEAVY SERIES EN10241-DN15	A105
2	HALF THREAD COUPLNG HEAVY SERIES EN10241-DN40	A105
3	HEX PLUG ASME B16.11 1/2″ ISO 7/1-RC  6000LB	ASTM A105  ZINC COATED
4	HEX PLUG ASME B16.11 2″ ISO 7/1-RC  6000LB	ASTM A105  ZINC COATED
5	HEX PLUG ASME B16.11 3″ ISO 7/1-RC  6000LB	ASTM A105  ZINC COATED
6	SCR. BUSHING ASME B16.11 1-1/2″ X 1/2″ ISO 7/1-RC 6000LB	ASTM A105  ZINC COATED
7	SCRD CAP ASME B16.11 2″ ISO 7/1-RC  3000LB	ASTM A105  WROUGHT
8	SLIP-ON FLANGE DN50 UNI 2278 PN16 FF	A105
9	SLIP-ON FLANGE UNI 2278/29 DN50 PN16 RF	A105
10	THREAD HALF COUPLING HEAVY SERIES DN40 EN10241	A105
11	THREAD HEX. PLUG HEAVY SERIES DN40 EN10241	A105
12	SCR. CAP 2″ ISO 7/1-RC 3000LB, ASME B16.11	A105
13	PIPE BENDING ELBOW 90 DEG. R=205 Ø88.9*3.2mm as Dwg	A105

Carbon Steel Forged Fittings

Threaded Fittings

Threaded fittings is a common used type of forged fittings in material of carbon steel. The threads can be NPT, BSPP, BSPT, PF, PT, MPT.

Size	1/4” to 4”( DN6 to DN100)
Pressure Rating	Class 2000, 3000, 6000 LBS
Standard	ASME B16.11, BS3799, MSS SP-79 / 83 / 85 / 97
Type	Threaded Elbow, Tee, Cross, Cap, Coupling, Boss, Plug, Bushing and Union.
Material	ASTM A105, A350 LF2/LF3, A182 F5, F9, F11, F12, F22, F91,A694 F42, F46, F52, F60, F65 etc.

Inspection photos

Socket Weld Fittings

Socket weld fittings are one type of high pressure forged fittings, which available in carbon steel, alloy steel, stainless steel and duplex steel. We also call it as SW.

Size	1/4″ to 4″ ( DN6 to DN100)
Pressure Rating	Class 3000, 6000, 9000 LBS
Standard	ASME B16.11, BS3799, MSS SP-79 / 83 / 85 / 97
Type	Socket Weld Elbow, Tee, Cross, Cap, Coupling, Boss, Union, Outlet.
Material	ASTM A105, A350 LF2/LF3, A182 F5, F9, F11, F12, F22, F91,A694 F42, F46, F52, F60, F65 etc.

Carbon Steel Forged Flanges

Forged flanges are flanges manufactured by forging technology, which have excellent mechanical properties and reliability. The forging process makes the internal structure of the material more compact, eliminates defects such as pores and inclusions, thereby improving the strength, toughness and corrosion resistance of the flange. Forged flanges are widely used in high pressure, high temperature and corrosive environments such as petroleum, chemical, electric power, shipbuilding and nuclear industries.

Shape Type	Regular and Long Neck
Sealing Face	RF, FF, FTJ
Size Range	1/2″ – 48″/ DN15 – DN1200
Pressure Rating	Class 150, 300, 600, 900, 1500, 2500lb
Standard	ASME B16.5, ASME B16.47 Series A/B
Carbon Steel	ASTM A105 / A105N

Inspection photos

ASTM A105 Carbon Steel Forged Fittings & Flanges

Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Cu	Ni	Cr	Mo	V
ASTM A105	MIN		0.6			0.1
	MAX	0.35	1.05	0.035	0.04	0.35	0.4	0.4	0.3	0.12	0.08

Mechanical Properties

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %	R/A %	HARDNESS
ASTM A105	485 min	250 min	22 min	30 min	197 max

Manufacturing Process of Forged Pipe Fittings and Forged Flanges

The manufacturing process of forged pipe fittings and forged flanges mainly includes:

1. Raw material preparation: Select suitable metal materials, such as carbon steel, alloy steel, stainless steel, etc.

2. Cutting: Cut the raw materials into suitable lengths according to the product size.

3. Heating: Heat the raw materials to a suitable temperature for forging.

4. Forging: Forge the heated raw materials into the required shape by free forging or die forging.

5. Cooling: Cool the forgings to room temperature.

6. Heat treatment: Heat the forgings as needed to improve their mechanical properties.

7. Machining: Machining the forgings to achieve the required size and accuracy.

8. Inspection: Inspect the forgings to ensure that their quality meets the requirements.