Chemical Composition Element Specified / Typical Range (wt. %) C ≤0.07 / ≤0.030 Mn ≤2.00 Si ≤1.00 P ≤0.045 S ≤0.030 Cr 16.0–18.0 Ni 10.0–14.0 Mo 2.0–3.0 N ≤0.10 Fe Balance Note: Values are presented as representative ASTM A182 grade requirements. The applicable standard edition and material certificate govern the final chemical limits.

Mechanical Properties Property Minimum / Requirement Tensile Strength, min. 515 MPa (F316) / 485 MPa (F316L) Yield Strength, 0.2%, min. 205 MPa (F316) / 170 MPa (F316L) Elongation, min. 30% Hardness As specified by applicable standard / product condition

Chemical and petrochemical plants Marine and coastal piping systems Pharmaceutical and biotechnology equipment Food and beverage processing Water treatment and chloride-containing service

Chemical Composition Element Specified / Typical Range (wt. %) C ≤0.07 / ≤0.030 Mn ≤2.00 Si ≤1.00 P ≤0.045 S ≤0.030 Cr 16.0–18.0 Ni 10.0–14.0 Mo 2.0–3.0 N ≤0.10 Fe Balance Note: Values are presented as representative ASTM A182 grade requirements. The applicable standard edition and material certificate govern the final chemical limits.

Mechanical Properties Property Minimum / Requirement Tensile Strength, min. 515 MPa (F316) / 485 MPa (F316L) Yield Strength, 0.2%, min. 205 MPa (F316) / 170 MPa (F316L) Elongation, min. 30% Hardness As specified by applicable standard / product condition

Chemical and petrochemical plants Marine and coastal piping systems Pharmaceutical and biotechnology equipment Food and beverage processing Water treatment and chloride-containing service

316/316L Stainless Steel Flange

Grade: 316/316L

Flange types：

Weld Neck (WN); Slip-On (SO); Blind (BL); Socket Weld (SW); Threaded (TH); Lap Joint (LJ); Orifice Flange where specified

Nominal size：

ASME: NPS 1/2–24 under B16.5; large diameter NPS 26–60 under B16.47; EN/JIS/GB/T sizes depend on applicable standard

Pressure rating：

ASME Class 150, 300, 400, 600, 900, 1500, 2500 (availability depends on size/type); EN/GB PN classes; JIS 5K–63K

316 and 316L are molybdenum-bearing austenitic stainless steels developed for improved resistance to pitting and crevice corrosion, particularly in chloride-containing environments. 316L has a lower carbon level and is commonly selected for welded piping and process equipment. These grades are widely specified for chemical processing, marine service, food processing, pharmaceutical systems and corrosive industrial media.

Chemical Composition

Element	Specified / Typical Range (wt. %)
C	≤0.07 / ≤0.030
Mn	≤2.00
Si	≤1.00
P	≤0.045
S	≤0.030
Cr	16.0–18.0
Ni	10.0–14.0
Mo	2.0–3.0
N	≤0.10
Fe	Balance

Note: Values are presented as representative ASTM A182 grade requirements. The applicable standard edition and material certificate govern the final chemical limits.

Mechanical Properties

Property	Minimum / Requirement
Tensile Strength, min.	515 MPa (F316) / 485 MPa (F316L)
Yield Strength, 0.2%, min.	205 MPa (F316) / 170 MPa (F316L)
Elongation, min.	30%
Hardness	As specified by applicable standard / product condition

Chemical and petrochemical plants
Marine and coastal piping systems
Pharmaceutical and biotechnology equipment
Food and beverage processing
Water treatment and chloride-containing service

Introduction

Specification

Chemical Composition

Element	Specified / Typical Range (wt. %)
C	≤0.07 / ≤0.030
Mn	≤2.00
Si	≤1.00
P	≤0.045
S	≤0.030
Cr	16.0–18.0
Ni	10.0–14.0
Mo	2.0–3.0
N	≤0.10
Fe	Balance

Note: Values are presented as representative ASTM A182 grade requirements. The applicable standard edition and material certificate govern the final chemical limits.

Mechanical

Mechanical Properties

Property	Minimum / Requirement
Tensile Strength, min.	515 MPa (F316) / 485 MPa (F316L)
Yield Strength, 0.2%, min.	205 MPa (F316) / 170 MPa (F316L)
Elongation, min.	30%
Hardness	As specified by applicable standard / product condition