The Standards Of Pipe Fittings
Reference Standard
Standard Code  Standard Name
ASME B16.9 Factory-made wrought steel butt-welding fittings
ASME B16.5 Pipe flanges and flanged fittings
ASME B16.11 Forged fittings socket-welding and threaded
ASME B16.47 Steel flanges
ASME B16.28 Wrought steel butt-welding short radius elbows and returns
MSS-SP-43 Wrought stainless steel butt-welding fittings
MSS-SP-44 Steel flanges
MSS-SP-75 Specification for high test wrought butt welding fittings
MSS-SP-79 Socket-welding reducer inserts
MSS-SP-83 Class 3000 steel pipe unions socket-welding and threaded
MSS-SP-95 Swage（d）nipples and Circle plugs
MSS-SP-97 Integrally reinforced forged branch outlet fittings-socket welding, threaded and butt-welding ends
ANSI/AWWA C207 Steel Pipe Flanges For Waterworks Service
　 　 　 　 　 　 　 　 　 　 　 　
Flanges

ANSI B16.5 Lap Joint
ANSI B16.5 Slip-On
ANSI B16.5 Threaded
　 　 　 　 　 　 　 　 　 　 　 　

ANSI B16.5 Lap Joint
ANSI B16.5 Socket Welding
ANSI B16.5 Blind
　 　 　 　 　 　 　 　 　 　 　 　

　
ANSI B16.36 Forged Orifice Welding Neck

　
ANSI B16.36 Forged Orifice Slip-On

　
ANSI B16.36 Forged Orifice Threaded
　 　 　 　 　 　 　 　 　 　 　 　

API 605 Welding Neck
MSS SP-44 Pipe Line Flange
　 　 　 　 　 　 　 　 　 　 　 　

Studded Type Threaded Companion Flange
Through Bolted Type Threaded Companion Flange
　 　 　 　 　 　 　 　 　 　 　 　
Material Specifications for API Type 6B & 6BX Flanges
PHYSICAL AND CHEMICAL PROPERTIES
Property Type 1 Type 2 Type 3 Type 4
Tensile strength, min., psi (Mpa) 70,000(483) 90,000(621) 100,000(690) 70,000(483)
Yield strength, min., psi (Mpa) 36,000(248) 60,000(414) 75,000(517) 45,000(310)
Elongation in 2 in., min., percent 22 18 17 19
Reduction in area, min., percent 30 35 35 32
Carbon, max., percent - - - 0.35
Manganese, max., percent - - - 0.9
Sulfur, max., percent - - - 0.05
Phosphorus, max., percent - - - 0.05
　 　 　 　 　 　 　 　 　 　 　 　

   ANSI, MSS and API standards govern flange dimensions and tolerances. ANSI B16.5,titled "Steel Pipe Flanges and Flanged Fittings", is the basic standard. It covers forged steel flanges, sizes NPS 1/2(DN 15) through NPS 24(DN 600). ANSI B16.36 covers Orifice Flanges. The following MSS and API standards are written to supplement B16.5:
MSS SP-6:    Flange facings
MSS SP-9:    Spot facing for bronze, iron and steel flanges
MSS SP-25:   Marking of flanges
MSS SP-39:   Bolts and nuts for flanges
MSS SP-44:   Large diameter pipe line flanges NPS 22
                    (DN 550) and NPS 26 (DN 650) through NPS 36(DN 900).
API 6A:    Wellhead equipment
API 605:    Large diameter flanges for petroleum usage   NPS 26(DN 650) through NPS 60(DN 1500)
AWWA C207: Hub flanges
　 　 　 　 　 　 　 　 　 　 　 　
Flanges Material
LIST OF MATERIAL SPECIFICATIONS
Material
Group		 Nominal Designation Pressure-Temperature
Rating Table		 Applicable ASTM Specifications
Forgings Castings Plates
1.1

　		 C-Si
C-Mn-Si
　		 2-1.1

　		 A 105
A 350 Gr.LF2
　		 A 216 Gr. WCB

　		 A 515 Gr.70
A 516 Gr.70
A 537 Cl.1
1.2


　		 C-Mn-Si

2½Ni
3½Ni		 2-1.2


　


A 350 Gr. LF3		 A 216 Gr.WCC
A 352 Gr.LCC
A 352 Gr.LC2
A 352 Gr.LC3

A 203 Gr.B
A 203 Gr.E
1.3


　		 C-Si
C-Mn-Si
2½Ni
3½Ni		 2-1.3


　		 　 A 352 Gr. LCB


　		 A 515 Gr.65
A 516 Gr.65
A 203 Gr.A
A 203 Gr.D
1.4
　		 C-Si
C-Mn-Si		 2-1.4
　
A 350 Gr. LF1 Cl.1		 　 A 515 Gr.60
A 516 Gr.60
1.5
　		 C-½Mo
　		 2-1.5
　		 A 182 Gr.F1
　		 A 217 Gr. WC1
A 352 Gr.LC1		 A 204 Gr.A
A 204 Gr.B
1.7


　		 C-½Mo
½Cr-½Mo
Ni-½Cr-1/2Mo
¾Ni-¾Cr-1Mo		 2-1.6


　
A 182 Gr. F2

　

A 217 Gr. WC4
A 217 Gr.WC5		 A 204 Gr.C


　
1.9

　		 1Cr-½Mo
1¼Cr-½Mo
1¼Cr-½Mo-Si		 2-1.9

　		 A 182 Gr.F12 Cl.2

A 182 Gr. F11 Cl.3
A 217 Gr. WC6
　

A 387 Gr. 11 Cl.2
1.10 2¼Cr-1Mo 2-1.10 A 182 Gr. F22 Cl.3   A 217 Gr. WC9 A 387 Gr. 22 Cl.2
1.13
　		 5Cr-½Mo
　		 2-1.13
　		 A 182 Gr.F5
A 182 Gr.F5a
A 217 Gr.C5		 　
1.14 9Cr-1Mo 　 A 182 Gr.F9 A 217 Gr.C12 　
2.1
　		 18Cr-8Ni
　		 2-2.1
　		 A 182 Gr.F304
A 182 Gr.F304H		 A 351 Gr.CF3
A 351 Gr.CF8		 A 240 Gr.304
A 240 Gr.304H
2.2


　		 16Cr-12Ni-2Mo

18Cr-13Ni-3Mo
19Cr-10Ni-3Mo		 2-2.2


　		 A 182 Gr.F316
A 182 Gr.F316H

　		 A 351 Gr.CF3M
A 351 Gr.CF8M

A 351 Gr.CG8M		 A 240 Gr.316
A 240 Gr.316H
A 240 Gr.317
　
2.3
　		 18Cr-8Ni
16Cr-12Ni-2Mo		 2-2.3
　		 A 182 Gr.F304L
A 182 Gr.F316L		 　 A 240 Gr.304L
A 240 Gr.316L
2.4
　		 18Cr-10Ni-Ti
　		 2-2.4
　		 A 182 Gr.F321
A 182 Gr.F321H		 　 A 240 Gr.321
A 240 Gr.321H
2.5


　		 18Cr-10Ni-Cb


　		 2-2.5


　		 A 182 Gr.F347
A 182 Gr.F347H
A 182 Gr.F348
A 182 Gr.F348H 		 A 351 Gr.CH8C A 240 Gr.347
A 240 Gr.347H
A 240 Gr.348
A 240 Gr.348H
2.6


　		 25Cr-12Ni

23Cr-12Ni
　		 2-2.6


　		 　 A 351 Gr.CH8
A 351 Gr.CH20

　

A 240 Gr.309S
A 240 Gr.309H
2.7
　		 25Cr-20Ni
　		 2-2.7
　		 A 182 Gr.F310
　		 A 351 Gr.CK20
　		 A 240 Gr.310S
A 240 Gr.310H
2.8

　		 20Cr-18Ni-6Mo
22Cr-5Ni-3Mo-N
25Cr-7Ni-4Mo-N		 2-2.8

　		 A 182 Gr.F44
A 182 Gr.F51
A 182 Gr.F53		 A 351 Gr.CK3MCuN

　		 A 240 Gr.S31254
A 240 Gr.S31803
A 240 Gr.S32750
3.1
　		 35Ni-35Fe-20Cr-Cb
28Ni-19Cr-Cu-Mo 		 2-3.1
　		 B 462 Gr.N08020
　
A 351 Gr.CN7M		 B 463 Gr.N08020
　
3.2 99.0Ni 2-3.2 B 160 Gr.N02200 　 B 162 Gr.N02200
3.3 99.0Ni-Low C 2-3.3 B 160 Gr.N02201 　 B 162 Gr.N02201
3.4
　		 67Ni-30Cu
67Ni-30Cu-S		 2-3.4 B 564 Gr.N04400
B 164 Gr.N04405		 　 B 127 Gr.N04400
　
3.5 72Ni-15Cr-8Fe 2-3.5 B 564 Gr.N06600 　 B 168 Gr.N06600
3.6 33Ni-42Fe-21Cr 2-3.6 B 564 Gr.N08800 　 B 409 Gr.N08800
3.7 65Ni-28Mo-2Fe 2-3.7 B 335 Gr.N10665 　 B 333 Gr.N10665
3.8




　		 54Ni-16Mo-15Cr
60Ni-22Cr-9Mo-3.5Cb
62Ni-28Mo-5Fe
70Ni-16Mo-7Cr-5Fe
61Ni-16Mo-16Cr
42Ni-21.5Cr-3Mo-2.3Cu 		 2-3.8




　		 B 564 Gr.N10276
B 564 Gr.N06625
B 335 Gr.N10001
B 573 Gr.N10003
B 574 Gr.N06455
B 564 Gr.N08825		 　 B 575 Gr.N10276
B 443 Gr.N06625
B 333 Gr.N10001
B 434 Gr.N10003
B 575 Gr.N06455
B 424 Gr.N08825
3.9 47Ni-22Cr-9Mo-18Fe 2-3.9 B 572 Gr.N06002 　 B 435 Gr.N06002
3.10 25Ni-46Fe-21Cr-5Mo 2-3.10 B 672 Gr.N08700 　 B 599 Gr.N08700
3.11 44Fe-25Ni-21Cr-Mo 2-3.11 B 649 Gr.N08904 　 B 625 Gr.N08904
3.12
　		 26Ni-43Fe-22Cr-5Mo
47Ni-22Cr-20Fe-7Mo		 2-3.12 B 621 Gr.N08320
B 581 Gr.N06985		 　 B 620 Gr.N08320
B 582 Gr.N06985
3.13 49Ni-25Cr-18Fe-6Mo
Ni-Fe-Cr-Mo-Low Cu		 2-3.13 B 581 Gr.N06975
B 564 Gr.N08031		 　 B 582 Gr.N06975
B 625 Gr.N08031
3.14 47Ni-22Cr-19Fe-6Mo 2-3.14 B 581 Gr.n06007 　 B 582 Gr.N06007
3.15 33Ni-42Fe-21Cr 2-3.15 B 564 Gr.N08810 　 B 409 Gr.N08810
3.16 35Ni-19Cr-1¼Si 2-3.16 B 511 Gr.N08330 　 B 536 Gr.N08330
　 　 　 　 　 　 　 　 　 　 　 　
High Pressure Forged Fittings (SW,BW,THRD)

Product description：45° 90° 180°LR&SR Elbow，Tee，Cross，Reducer，Plugs &Caps，union，outlet，Elbolet ，Latrolet ，Nipolet ，Boss，

                            Nipples，Coupling

Production range：DN8-DN400 (1/8”-16”)

Pressure Rate：2000Lb，3000Lb，6000Lb，9000Lb

Manufacturing standard：GB/T 14383, SH3410, HG/T21634, ASME B16.11,JISB 2316, MSS SP83,MSS SP-79,MSS-SP97,DIN

Material：

Stainless steel

0Cr19Ni19，0Cr18Ni9Ti，1Cr18Ni9Ti，0Cr18Ni12Mo2Ti, 00Cr18Ni10,00Cr19Ni11,00Cr17Ni14Mo2，F304/304L,316/316L,F321,F321H,F317L,F310,A182,F44(UNS31254)

Duplex & Super Stainless Steel

A182 F51/UNS31803,F53/UNS32750,F55/UNS32760

Carbon Steel

20#， A105,A350LF1/LF2/LF3,MSS SP44 & A694 F42/46/52/60/65/70

Alloy Steel

A182 F1/F5a/F9/F11/F12/F22/F91

Others

Copper-Nickle Alloy，Titanium，Aluminum，Monel，Inconel，Hastelloy and other special material.

　 　 　 　 　 　 　 　 　 　 　 　
Socket Welding Fittings

90° Elbow
45° Elbow
Tee
Cross
　 　 　 　 　 　 　 　 　 　 　 　

Cap
Coupling
Half-Coupling
Boss
　 　 　 　 　 　 　 　 　 　 　 　

Socket Welding Reducer Inserts

TYPE I
TYPE II
　 　 　 　 　 　 　 　 　 　 　 　
Unions of Socket-Welding & Threaded

Socket Unions
Threaded Unions
　 　 　 　 　 　 　 　 　 　 　 　

SW Outlets & THD Outlets

　 　 　 　 　 　 　 　 　 　 　 　
Weldolet
　 　 　 　 　 　 　 　 　 　 　 　
Nipolets
　 　 　 　 　 　 　 　 　 　 　 　
Hexagonal Nipple

Nipple (POE/TOE)
Nipple (TBE)
　 　 　 　 　 　 　 　 　 　 　 　

Straight Hexagonal Nipple
Reducing Hexagonal Nipple
　 　 　 　 　 　 　 　 　 　 　 　

Swaged Nipple

Concentric Swaged Nipple
Eccentric Swaged Nipple
　 　 　 　 　 　 　 　 　 　 　 　
Threaded Fitting

Coupling
Half-Coupling
Cap
　 　 　 　 　 　 　 　 　 　 　 　

90° Elbow
45° Elbow
Tee
Cross
　 　 　 　 　 　 　 　 　 　 　 　
Bends

90° Bend
45° Bend
　 　 　 　 　 　 　 　 　 　 　 　
Elbolets and 45° Latrolets
　 　 　 　 　 　 　 　 　 　 　 　

Seamless and Welded butt welding Fittings

Products description：

45° 90° 180°LR&SR Elbow，Tee，Cross，Reducer，Cap，Stub end，bend

Products Range：

DN15-DN3000 seamless and welded

Wall thickness：

Sch5-Sch160（Sch5s-S16s）

Manufacturing  Standard：

GB12459,GM/T13401,SH3408/3409,HG/T21635/21631, SY/T0510,ANSIB16.9, JIS 2312/2313, DIN 2605/2615/2617;

Material：

0Cr19Ni9，0Cr18Ni9Ti，1Cr18Ni9Ti，0Cr18Ni12Mo2Ti，00Cr18Ni10，00Cr19Ni11，00Cr17Ni14Mo2，304/304L,

316/316L,321,321H,317L,904L, 1.4541.1.4571.1.4301,1.4406

Duplex & Super Stainless Steel

ASTM1815 UNS31803(2205，00Cr22Ni5Mo3) UNS32750 (2507，00Cr25Ni7Mo4N); UNS32760

Carbon steel

Q235，20#，16Mn，16MnR，A234, WPB, WPL3/L6/L9,WPHY42,/46/52/56/60/65/70

Alloy steel

12CrMo，12CrMoV，15CrMo，10CrMo910，WP1,WP5,WP9, WP11,WP22,WP91

Others

Copper-Nickle Alloy，Titanium，Aluminum，Monel，Inconel，Hastelloy and other special material
　 　 　 　 　 　 　 　 　 　 　 　

BW Straight Tee
BW Straight Cross
Lap Joint Stub Ends
　 　 　 　 　 　 　 　 　 　 　 　

BW Reducing Tee
BW Reducing Cross
Lap Joint Stub Ends
　 　 　 　 　 　 　 　 　 　 　 　


180° BW Returns
180° BW Elbows
45° BW Elbows
BW Straight 45° Laterals
　 　 　 　 　 　 　 　 　 　 　 　

Seamless Concentric
Weld Concentric
Seamless Eccentric
Weld Eccentric
　 　 　 　 　 　 　 　 　 　 　 　
Malleable Iron Pipe Fitting
　 　 　 　 　 　 　 　 　 　 　 　
　 　 　 　 　 　 　 　 　 　 　 　

SHANXI YIXING MACHINERY COMPANY LTD.

SUIT907, 6 BUILDING, 19 CHUANGYE STREET, TAIYUAN NATIONAL HIGH-TECH INDUSTRIAL DEVELOPMENT ZONES,TAIYUAN, SHANXI, 030006, P.R.CHINA
TEL/86-351-5600630, 5600631    FAX/86-351-5600632    E-MAIL/worgxp@sxyixing.com  CONTACT/MR GUO XIAOPING