ASME B16.11 ASTM

ASTM A105 Forged Socket-Weld 90° Elbow Chart (ASME B16.11)

Carbon Steel ASTM A105 · 3000 lb / 6000 lb class · 1/8" to 4"

Dimensions & weight table

Reference values for layout and freight estimates. Confirm critical dimensions against the latest ASME edition and your project ITP before procurement.

NPS	DN	OD (mm)	Wall (mm)	C / A (mm)	Weight (kg)
1/8"	6	10.3	2.41	11	0.04
1/4"	8	13.7	2.24	16	0.06
3/8"	10	17.1	2.31	19	0.09
1/2"	15	21.3	2.77	24	0.12
3/4"	20	26.7	2.87	29	0.18
1"	25	33.4	3.38	38	0.32
1-1/4"	32	42.2	3.56	48	0.48
1-1/2"	40	48.3	3.68	57	0.65
2"	50	60.3	3.91	76	1.05
2-1/2"	65	73	5.16	89	1.65
3"	80	88.9	5.49	102	2.35
4"	100	114.3	6.02	127	4.2

Material data

Chemical composition

C: ≤ 0.35 %
Mn: 0.60 – 1.05 %
P: ≤ 0.035 %
S: ≤ 0.040 %
Si: ≤ 0.35 %

Mechanical properties

Tensile strength: ≥ 485 MPa (70 ksi)
Yield strength: ≥ 250 MPa (36 ksi)
Elongation: ≥ 22 % (in 50 mm)

Manufacturing & quality assurance

Yanshan Hengzhenyuan Pipeline — integrated forming, heat treatment, machining and NDT for export utility and EPC programs.

Production capability

Forged A105 bodies per ASME B16.11 and MSS SP-83
Socket weld ends for small-bore high-pressure piping
Normalizing when specified; traceable heat numbers
Common in instrument and steam tracing assemblies

Inspection & release

Socket bore and A dimension check
PMI on each heat; hardness when required
MT on forged surfaces
EN 10204 3.1 for export lots

Engineering FAQ

Ratings depend on material and schedule (e.g. 3000 lb and 6000 lb classes). Confirm class on the line specification and MTO.

ASME B16.11 commonly covers NPS 1/8 through 4. Larger lines typically use butt-weld B16.9 fittings.

Yes. A 1/16" (1.6 mm) expansion gap is standard practice before socket fillet welding per industry guidelines.

Stainless and alloy forged fittings in A182 grades can be quoted on the same inquiry.

Quick RFQ

Include quantity, delivery port and required certificates. We respond with mill pricing and lead time.